Sl.No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43

Option1 Option2 Option3 Question Not a Non - renewable energy Coal Oil Wind Pelton turbine works with a head between 15 m< 6m1800 m between 5 m and 10 m and Electrician 's solder with lead 55% andlead45% and tin 40% and tin 60% tin 58% lead 42% Heavy duty applications Helical gear Spur gear Bevel gear Intersecting shafts Bevel gear Helical gear Worm and worm gear The spring used in door hinges Leaf spring Helical spring Torsion spring When U- 235 atom splits , it gives off 3 to4 neutrons 2 2 to 3 neutrons The flame has a highest temperature of 3400 c flame Slightly carburising flame Neutral Oxidising flame In turning operation , the cutting speed m / min / 1000 XDxN / 100 XDxN / 60 3.14 XDxN 3.14 3.14 Gears applied for high velocity ratios Helical gear Bevel gear Spur gear Viscosity of liquid increases with _______decreases in temperature increases remains constant The capillary fall in a tube indicates ________ pressure atmospheric gauge absolute An open tank contains water up to a depth ofN/cm2, 0.485 N/cm2,0.8829 N/cm2, 2.8449N/cm2 0.566 2m and2.344N/cm2oil of specific gravity 0.9 for a depth above it an 3.025N/cm2 When streamlines and equipotential lines are perpendicular to each other, it is called as ________ Flow work Flow Net Flow rate The value of critical reynold number for flow over a plate is 900000 1000000 500000 A pitot tube is used for measuring pressure velocity temparature A stream line is described for______________ flow one two three The ratio of inertia force by elastic force is called as Eulers number Weber number Mach number The velocity profile of fluid flowing over through thedecreasing parabolic of circle flat surface isincreasing parabolic in shape The ratio of friction co efficient by friction factor in darcy 's equation is 1/2 1/6 1/4 A lower pair is a open pair closed pair sliding pair which of the following has sliding motion crank crank pin connecting rod in elliptical trammels all fourpairs are turning are slidingturning and two pairs sl all four pairs two pairs the number of links and instantaneous4,4 centres in a reciprocating engine mechanism are 4,5 4,6 cam size depends upon base circle pitch circle prime circle the transverse section of the helical gear is identical to bevel gear spur gear worm gear the motion of a pendulum is S.H.M only when its amplitude is small large equal to length of pendulam involute function of a gear is defined as (sec - ) rad (cot - ) rad (tan - ) rad Which one of the following effects is more dangerous waving rolling for a ship steering the number of links in pantograph mechanism is equal to 4 6 2 Advantage of reciprocating IC engines over steam turbine is mechanical simplicity plant efficiency temperature improved lower average The intake charge in a diesel engine consists of air alone air + lubricating + fuel air oil SI engines are of light weight high speed homogeneous charge of fuel and a Compression ratio in diesel engine is in5-7 order the 7-10 10-12 Main advantage of a two stroke engine morefour stroke engine is output for the cylinder of same dim over uniform more power absence of valves torque on the crankshaft The volumetric efficiency of the SI engine is comparatively than CI engine lower than CI engine higher will be same as CI engine Brake specific fuel consumption is defined as fuel consumption per hour fuel consumption per bp fuel consumption per km Thermal efficiency of CI engine is higher than that of SI engine dueconstant pressure heat addition fuel used higher compression ratio to An IC engine gives an output of 3 kW when the input 30% 33.30% is 10,000 J/s.60% thermal efficiency of the engin The Knocking takes place in CI engines at the start of combustion during combustion at the end of combustion The ability of material to become hard by virtue of itssolid solutiongrain boundary hardening strain hardening elongation hardening If the deformation is very large, time independent, fully recoverable and doesnot obey Hooke's law, t elastic deformation elastomeric deformation plastic deformation fracture occurs because of repeated applied load within its ultimate stressfracture as ductile fracture brittle fracture fatigue is known

44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87

Griffith theory is best suited for single crystal ductile material brittle material The melting temperature of pure iron is 14400C 15400C 16400C A high strength steel that has a ferrite and martensiteTRIP HSLA microstructure isphase steel dual called Materials that produce a voltage when stress is applied in shape memory alloy is called as magnetostrictive material thermoelectric material piezo electric material Cubic Boron Nitride is used as adhesive abrasive lubricant Composites are isotropic and homogeneous anisotropic and homogeneous isotropic and hetrogeneous Internationally agreed temperature for measurement is 160C 180C 200C The pointed contact micrometer is bestfor measuring to measure inside recesses where regularof slid suited pitch diameters controlled displacement tips w for The average height from a mean line ofR.M.S. Value of the surface Average to of thevalueis called as all ordinates C.L.A. value regardless peak sign height When the pitch of a screw is uniform, but is shorter or longer than Periodic Error Erratic pitch Progressive Error its nominal value, it is said to have Krypton 86 produces fringes with a max path difference of 500 mm 375 mm 800 mm Koster prism in interferometer is used to maintain uniform pressure focusses the dark fringes only improves the and temperature noise level Which of the following is not a attribute chart "C" chart "p" chart "R" chart Which of the following variation is not by a assignable causes material machine batch of defective raw slight vibration of setup faulty If producer risk is , probability of acceptance of AQL1 - is 1+ Which is false statement regarding operating characteristics (OC) plans can give completesteeper the it shows ability to distinguish between good and bad lots no sampling curve the sample size, protection larger A convergent- divergent nozzle is usedless than the critical tocritical pressurethe critical pressure when the discharge pressure is than equal more A shock wave is produced when a subsonic flow sonic flow changes to supersonic flow to subs a changes to sonic flow flow changes a supersonic The sonic velocity in a fluid medium is Mach number pressure directly proportional to square root of temperature A normal shock wave is reversible is irreversible isentropic is Chocking of a nozzle fitted to a pressure tank containing gas implies mass flow of flow sonic velocity at the throat obstruction rate increase of the The sonic velocity is largest in which ofWater the following Steel Kerosene The region outside the Mach cone is called of actionZone of silence Zone control volume A stagnation point is the point on the immersed bodylarge the magnitude of velocity is small where zero Across a normal shock The entropy remains constant velocity and pressure decreas the pressure and the temperature rise the In a supersonic flow, a diffuser is a conduit having converging-diverging passage gradually decreasing area constant area throughout its lengt plasticity ductility toughness In machining, chips break due to use power that have less generate less The advantage of positive rake angle on cutters isless these cutting pressuresheat grinder milling machine containing etching solution tank Chemical milling operation is carried out on 18% Tungsten content in the High Speed Steel cutting tool4% material is 1% 100 deg.C 280 deg.C For mild steel workpiece and carbide tool, maximumRoom temperature at temperature of material is removed water acqueous saltsodium hydroxide solution Electro-discharge machining uses the following lowing dielectric fluid EDM ECM LBM The following non-conventional method of machining essentially requires electrolyte 50 The size of abrasive grains in abrasive 1 to 10 microns to 50 microns 100 microns jet machining 10 varies between to Heavy sections Laser beam machining process is used Very thick materials for machiningThin materials Protective layer slag The material used for coating the electrode is called binder Segmentation deals with grouping the Size of an image having similar_______ areas Geometry Characteristics Manual lead through programming is used for the following application Part trasfer task weldingMachine loading/unloading Spot ________ is a commom type of container Fixture a factory to hold and move parts used in Bin Pallet To actuate the robotic arm in straight path, which command is needed APPRO MOVES DMOVE The signal that is sent by the robot or the signal for which the robot is waiting is called Input Interlock Output The robot that assemble the square peg in the square hole require6 3 5 how many degree of freedom The ________ device is capable of accomodating the lateral errors and angular errors encountered in an SCARA PUMA RIA This sensor device indicates, when an object is close to another object butencoder Proximity sensor Machine vision Optical before contact has been m

88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131

A joint of an industrial robot provieds a ____________ between two parts of the body linear motion Circular motion Relative motion Which joint provide rotational relativePrismatic joint axis of rotation perpedicular to the axes of th motion, with the Revolving joint Twisting joint The joint notation scheme for SCARA robot is TRR TRL VRO What kind of drive is to be selected forElectric drive Hydraulic speed of robotic operation high strength & greater drive Mechanical drive which sensor is used for measuring precisely the rotary motion of Optical Encoder LVDT Potentio meter robotic joint the What type of gripper will be used to lift a perforated metal sheet Mechanical gripper Vaccum gripper Suction Cup Which part of robot is used to orient the object/workpart Link Wrist Base The load carrying capacity of the robotFullest extension (away from base)(closer to base) is speficied when its arm isBelow the base Minimum extension at Which gripper reduces the cycle time (material handling) Single gripperMutiple gripper Magnetic type The robot's ability to position the end effector attached to its wrist at a point in space that had previo Interchangeability Precision Repeatability It is a force sensor composed of a matrix of force sensing elementssensor Touch sensor Tactile array Proximity sensor Stirling and Ericsson cycles are reversible cycles irreversible cycles quasi-static cycles The efficiency of carnot engine depends on working substances of engine of fuel fired design type Change of entropy depends upon change of masshange of temperature pressure c change of Diesel cycle efficiency is maximum when the cut off is increased decreased maximum 270c 327c A perfect gas at 27c was heated until its volume was540c The temperature of gas will now be double The slope of constant pressure line on T(-1) temperature entropy diagram is given by S/T T/S The value of joule-kelvin coefficient for an ideal gas is one some -ve value some +ve value If heat engine is supplied heat at the rate 30,000j/s and gives output of 9kw, heat rejected will be 2.1kj/s 21kj/s 210kj/s The efficiency of carnot engine is 0.75.It cycle direction is reversed COP of reversed carnot cycle will 0.25 0.5 1.25 Minimum work in compressor is possible when the value of adiabatic index n is equal to 0.75 1 1.27 Volume TemperaturePressure Which of the following property is an extensive property 1.01325 bar 1.01325 dyne/cm^2 N/m^2 1.01325 One atmosphere is equivalent of Point functions Properties ofPath function a system Heat and work are increases of pressure remains same Decreases The enthalpy of evaporation of steam with increase volume pressure Temperature Enthalpy of gas depends upon n=1.5 n=1 n=1.4 In which of the case workdone on air/kg during compression is the least when 30% 33.30% 45% 40,000 J/sec of heat is supplied to an engine for the net work of 12kW obtained from it. The thermal 30% 47.10% 89.10% Efficiency of carnot cycle with T1=573K and T2=303K is Zeroth law First law Second Basics for measuring thermodynamic property of temperature is given bylaw 5 3 1 If COP of a Carnot refregirator is 4, for the same temperatures of source and sink, the COP of Carnot h Otto cycle Diesel cycle Dual cycle For the same compression ratio, the efficiency is maximum for 35% 50% Thermal efficiency of a high speed diesel engine at rated load is 70% smaller Size of flywheel of 2 stroke IC engine aslarger compared with 4 Stroke ICsame for same speed and powe engine, Increase Air compressor capacity at high altitude compared toDecrease willremains same sea level to create plantto to increase vaccum The main function of condenser in steam power vaccummaintain vaccum is The dryness fraction is limited to 88-90% at any stageefficiency of blades prevent fall in thermal corrosion turbine to of blades in steam erosion work The gas turbine cycle with regenerator thermal efficiency ratio avoids pollution improves 5 1.2 The evaporator temperature is 250K and condeser temperature is6 300K. The COP of Refregirator cyc less equal Carnot COP of Domestic Refregirator asmore compared to that of Domestic Air-Conditioner is Increase Decrease remains same Carnot COP for Refregirator by lowering the evaporator temperature keeping the condensor temper W/m^2 K W/mK W/mhr K The unit of Thermal conductivity is It is preferred that the area of the crossto decrease to increase to maintain constant section of the fin along the height Linear Parobolic Exponential The temperature variation with time in a lumped system is

132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175

Reynolds Prandtl Grashoff The number which is relevant in transient heat conduction is Increases Decreases Remains constant With an increase in convective heat transfer co-efficient, the fin effectiveness Stanton number Biot The ratio of internal conduction resistance to surface Fourier number number convective resistance in case of fin is known as Conduction Convection a & b Fourier law of heat transfer is applicable only Radiation Evaporative cooling The heat transfer in cooling tower takes palce mainlyConvective cooling by Parallel flow excahnger Correction factor is applied to LMTD for_________ Heat Counter flow Cross flow 1 0.5 >1 Emmissivity of a gray body is FEM is a ____________ for solving problems of Engineering. Experimental method Method Analytical Approximate method Pick the suitable example for one dimensional elements. Bar and Beam Triangular elements. elements Rectangular elements. What is meant by post processing? Analysis and Modeling the solution result evaluation of structure. boundry conditions. fixing the What is the discretization? Analysis and evaluation of the structure. Sub dividing solution result fixing the boundry conditions. choose the property of the stiffness matrix? Symmetric matrix Diterminent is not equalelement. It is stable to zero. Choose the correct stage for assigning load processor Post processor Pre in Ansys? Solution What is the use of meshing? Used to make the Result Used for create graphs. Used to create node and elements. What is meant by Current LS in Ansys?Load step Local system. Local structure. Give the description for the file extensions "filename.log" ANSYS commands. Logfile or listing of of all ANSYS file. Output Error operations. Axisymmetric model is used to ____________ increase the computational solve thetime. To to reduce computational Complex shapes. to time Which of the following is not the property of a system work temperature internal energy Workdone in the free expansion peocess is positive negative Zero The Net entropy change in any irreversible process is unity infinity zero The critical point of water is 221.297bar and 374.15C and 374.15Cand 374.15C 230.297bar 219.297bar As the pressure increases ,the latent heat of steam will remains constant decreases increases change in entropy is positive in reversible change negative in irreversible change negative in reversible change If the system is working between 800kJand 400 Kjand suppliedd heat is 200kJ 50KJ 100KJ 150KJ Theoritical carnot efficiency of a heat engine operating between 600Cand 100C is 16.70% 20% 42.70% A heat engine takes 200Jof heat energy500% and perform 50J in each cycle is 400% 25% The state of a system is identified by its size shape properties The maximum and minimum temperature of the fliud (air) working in brayton cycle are 1000 K and 2.45 8.22 3.54 For the same compression ratio, which Otto has maximum efficiency? cycle Diesel Dual Which cycle has three process Stirling Baryton Lenoir The critical pressure and temperature of water isand 22 bar and 74.150C and 1800C 221.1 bar 374.150C 140 bar A bomb calorimeter is used for finding the calorific value of Liquid only solid only solid and liquid The efficiency of an reversible engine is 50%. Its COP2 5 will be 10 A mollier chart is the plot P-V diagram H-t diagram T-s diagram When solid, liquid and gas curve co-exist at a point it Moot point critical point weak point, is called as Knocking occurs in ___________ engine S.I engine C.I engine wrankel engine TheThe wet bulb depression is zero when relative humidity equals 2 3 1 A mass of 1 Kg is attached to the middle of a rope, whichN being pulled from both ends in the opposi 5N 20 is 25 N A rubber ball is dropped from a height 1m2m.If there 2m loss of velocity after rebounding the ball w of is no 3m If a body is acted upon by a number of rotate about itself without moving may rotating about itself coplanar non concurrent forces,direction at rest moves in anyone it be completely 2 2 3P rad/sec 6P rad/sec rpm in 10 2 The shaft of a motor starts from rest and attains full speed of 18002P rad/sec seconds.The shaft has a A particle starts from rest with a constant acceleration a m/sec2 and after some time it deaccelerates at a uniform rate (a+b/2)*t (a-b/2)*t (ab/a+b)*t A particle moves with uniform acceleration:one a straight line ABC.The speeds of the particle at po two along one:one one:two Two bodies of mass m1 and m2 are dropped from different/m1h1 (h11/h2)1/2 respectively.Neglecting t m1/m2 m2h2 heights h and h2

176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219

A body of 2 Kg mass makes an elastic collision with another body at rest and afterwards continoues t 1.2 Kg 1.0 Kg 0.6 Kg For perfectly elastic bodies ,the values 1 coefficient of restitution 0 to 0.5 of 0.5 to 1 is -1 2 -1 -1 2 tan (gT /2R) R is T seconds, the inclination of the direction o If the time of flight of a bullet over a horizintal range tan (gT/2R) tan (gT /4R) Fluxes are used in welding in order to protect the molten metal and the surfaces to be jointed from oxidation carburizing dirt The commonly used flux for brazing is Resin Borax Soft silver High speed steel material contains carbon 6-1.0% 2-4 % 4-6 % For machining a casting on a lathe ,it should be held in collet chuck magnetic chuck jaw chuck three Half nut is connected with Milling machine Locking device Thread cutting on lathe Which of the following is not a casting defect Hot tear Blow hole Scab Loose piece pattern are A sort of split patterns the pattern cannot be drawn from th Used when Similar to core prints Sprue in casting refers to Gate Runner Horizontal passage Core prints are used to Strengthen core Form a seat to support and hold the core in plac Fabricate core Seam less tubes in mass production are done by Rolling Extrusion Drawing Time dependent permanent deformation is called ________________. Creep Plastic deformation deformation Elastic Figure-out the odd point in the following Proportinal limit Elastic limit Yeild point If a material is subjected to two incremental true strains-namely 11 + 2 then the total true strain 1 * 2 1 2 and 2, Engineering stress-strain curve and True stress-strain curvelimitequal up to Proportional limit Elastic are Yeild point Value of Poissons ratio for ionic solids0.1the range of in 0.2 0.3 Shape of true stress-strain curve for a material depends on rate Temperature Strain Strain Plastic deformation results from the following Slip Twinning Both Time dependent recoverable deformation under loadAnelastic____________ deformation. Elastic is called Elastic after-effect Toughness of a material is equal to area under ____________ part of the stress-strain curve. Elastic Plastic Both High elastic modulus in materials arises from High strength Weak bonds combination of bonds of bonds The property by virtue of which a bodyHardness aftertoughnesscalled rebound impact is plasticity If a body is at rest No external force acts on body a and b on body is nil resultant of a forces acting both The linear acceleration of a rotating body is a=r/ a=/r a =r The C.G of hemisphere lies at distance 3r/8 3/8r 8r/3 In a couple lines of action of forces are incl.ined parallel concureent In a perfect frame m=2j-3 m2j-3 The frictional force is independent of coefficient of friction contact area of normal reaction The coefficient of friction is limiting friction to normal reaction reaction to sliding friction sliding friction to normal reaction normal The C.G of right circular cone of dia (d) h/2 &height(h) at a distance of h/4 h/3 A rigid body in translation only move in straight lineinonly move in curved path only move inclined line An aluminium member designed based on stress elastic limit stress stress yield proof The neutral axis of a beam subjected tozero stress max tensile stresss max compressive stresss The failure of a material is called fatique when it fails below the elastic limit point at the elastic limit at the yield The centre to centre distance between two consecutive rivets in row is called margin pitch back pitch The parallel fillet welded joints are designed for tensile strength compressive strength strength bending The washer is generally specified by itsouter dia hole dia thickness The taper on cotter varies from 1 in 15 to 1 in 1 in 24 to 1 in 20 32 to 1 in 24 10 1 in An I section is more suitable for a rocker arm cranked lever foot lever The sprin g mostly used in gramophones helical conical laminated In leaf spring the longest leaf is known lower leaf as master leaf a) upper leaf for any transportation problem, the coefficient of all xij in the constraints are1 unity zero more than

220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248

a customer leave the queue beecause of no waiting space is called jockeying balking reneging cuctomer moving from one queue to another is called balking reneging jockeying in travelling salesman problem,no assignments should be made along row column diagnol a queuing system can be completely described by queue discipline input customer behaviour STEP stands for (STandard for Standard for Standard formodel dat design da the Exchange of Product the product for prod the exchange of exchange The disadvantage of 3D wireframe modeling is define the complete cannot definesurfaces for machin does not define the complete interior parts significantly it interior surfaces for machining 2D wireframe modeling has several advantages for NC programming of these Simple and easy to suited for turning parts and mill parts with well understand all The method of disassembling the solidCSG the final DSG from assembly is calledb Only DXF stands for Direct exchange formats Data exchange files Direct exchange files Standard framed by ISO STEP IGES CALS Anti aliasing refers Hidden surface removal algorithm the jaggedness of line on ra View plane on which images are projected Reduce Single block primitive with equal length width and height is referred as b Rectangular Prism Cube a and De-clutter refers Jagged line that results from drawing on a rasterangle Elimination of unwanted details a screen thr a rule determining in a display Pixel refers Jagged line that results from drawing on a rasterangle Elimination of unwanted details a screen thr a rule determining in a display The normal circular pitch in helical gears is given by p / sin p sin p cos It is desirable to have the number of teeth in the driving sprocket above 25 so as to reduce interfernce undercutting wear Which thread is stronger than other threads? Acme Square Buttress deflection of teeth under load ciruclar The dynamic load on a gear tooth is due to pitch errors profile errors internal bevel angle are known crown gear Equal bevel gears that connet two shafts at right gear external bevel gear as embeddability conformability bondability If the bearing material has the ability to accommodate shaft deflections and bearing inaccuracies by The normal lead(l N), in a worm having N= l / cosstart N= l * cosisgiven lby ___, where l is lead and is l multiple l threads, l N= The type of stresses developed in key is / arestress bearing stress both shear & bearing stresses shear Which of the following is an overlapping gear box? 15 14 both The transmission angle is maximum when the crank angle with the fixed link is 0 90 180 The Coriolis acceleration component ____ the sliding velocity by __ degrees lags, 90 leads, 90 lags, 180 has turning it has sliding pairs The Davis steering gear is not used because it pairs is costly The pressure of the cam ___ with increase in the base increases decreases circle diameter not change does No force is required for downward motion a load on> < of a screw jack if 2 > In a gear train, the train value is given by / Nn N1 Nn / N1 N1* Nn two three two parallel perpendicul perpendicular The axis of spin, the axis of precession planes axis of gyroscopic torques are in and the ar planes planes

249 250 251 252 253 254 255 256 257 258 259

In a governor if the equillibrium speedstable is constant for all radii of rotation of balls, the governor is said unstable inertia The maximum fluctuation of energy in I (1 - 2) equal to a flywheel is I K 2KE The contact ratio of gears is always more than 1 1 less than 1 The coefficient of restitution of a perfectly plastic impact is 0 1 2 The principle of transmissibility of forces states that,Different its different points on its line of is Same at every point on at line ofupon a body, its effect action when a forceminumum, if it acts at the centre o acts action The point, through which the whole weight of the body acts,of gravity moment of inertia centre irrespective of its position, is known as centren of percussion The angle of inclinitaion of the plane atangle ofthe body begins to move down the plane is called which friction angle of repose angle of projection The rate of change of momentum is directly proportional of motion law ofthird and takes place in t newton's first newton's second law to the impressed force, law of motion` newton's motion The range of a projectile is maximum, when the angle of projection is 30 45 60 When a wave travels through a medium ______. are transferred from one is transferred manner particles energy is transferredplaceperiodic at a constant energy in a to another

260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288

When sound travels through air, the airvibrate along the direction of wave perpendicular to the direc particles ______. vibrate but not in anypropagation vibrate fixed direction Which of the following is not a characteristic of a musical sound? Quality Pitch Wavelength Unit of wavelength is ___________.. newton erg dyne The speed of a sound wave as it propagates through air is dependent mainly on the period temperature amplitude When a transducer is used in conjunction with another device to measure vibration, it is called a Vibration sensor Vibration pickup Vibration actuator The instrument that measures the displacement of a vibrating body is called a Seismometer transducer Accelerometer The circuit that permits the passage of frequency components of a spetral filter frequency band and band pass filter frequency filter signal over a In the spring mass system, if the mass of the system is doubled andis halved of spring is halved, the n remains unchanged is doubled stiffness Resonance is a phenomenon in which the frequency of the excitingequal is _____ to the natural freque double half force Unit of thermal conductivity in S.I. units is J/mK J/m2 K W/mK Thermal conductivity of solid metals with rise in temperature normally increases decreases remains constant Heat transfer in liquid and gases takes place by conduction convection radiation Which of the following is the case of heat transfer by radiation building of parts in furnace blast furnace heating of cooling Metals are good conductors of heat because atoms collide atoms are relatively far apart their their frequently contains free electron they Thermal conductivity of water in general with rise in decreases remains constant increases temperature Thermal conductivity of air with rise in increases temperature decreases remains constant Which of the following is expected to have highest thermal ice steam solid conductivity ice melting The ratio of heat flow Q1/Q2 from two1 walls of same0.5 thickness having their thermal conductivities a 2 Thermal diffusivity is a dimensionless parameterused as mathematical model function of temperature Unit of thermal diffusivity is m2/hr m2/hroC kcal/m2hr Emissivity of a white polished body in comparison tolower bodysame higher a black is A grey body is one whose absorptivity varies with temperature wavelength of the incident ray varies with is equal to its emissivity Two balls of same material and finish have their diameters in the ratio 2:1 and both are heated to sa 1:1 2:01 1:02 A non-dimensional number generally associatednumber Grashoff with natural convection number Nusselt number Weber heat transfer is LMTD in case of counter flow heat exchanger as compared to parallel flow heat exchanger is higher lower same In heat exchangers, degree of approachcold water as the differencehot medium outlet and cold water is defined inlet and outlet inlet and outlet hot medium between temperatures of A steam pipe is to be insulated by two insulating materials put over each other.be putinferior one ove better insulation should be both should put in overorderand b inferor insulationover pipe and any pipe put may be For best results, Fourier law of heat conduction is valid for dimensional cases only three dimensional cases only one two dimensional cases only All radiation in a black body are reflected refracted transmitted

Option4 Option5 Answer Complexity Nuclear fuel 3 Simple >1900m 1 Complex lead 50% and tin 40% 2 Complex Herringbone gear 4 Simple Spur gear 1 Complex Sprial spring 3 Simple 4 3 Simple Exteremely carburising flame 3 Complex 2x3.14 XDxN / 1000 1 Complex Worm and worm gear 4 Simple increases and decreases 1 Simple vaccum 4 Simple 0.305 N/cm2, 1.855N/cm2 3 Complex None of the above 2 Complex 2000 3 Simple entropy 2 Complex four 2 Complex Froude number 3 Simple straight line 3 Simple 1/8 3 Complex point contact pair 2 Simple cross head 4 Complex one pairs turning and three pairs sliding 3 Simple 6,4 3 Simple outer circle 1 Simple none of the above 2 Complex none of the above 1 Complex (sin - ) rad 3 Complex pitching 4 Simple 3 1 Simple all of the above 4 Simple air + fuel + lubricating oil 1 Complex all of the above 4 Simple 14-20 4 Complex all of the above 4 Simple none of the above 1 Complex Fuel consumption per brake power hourSimple 4 none of the above 2 Simple 66.60% 2 Complex none of the above 1 Simple fibre hardening 1 Simple anelastic defromation 2 Complex creep fracture 3 Simple

single crystal with impurities 3 Complex 17400C 2 Simple maraging steel 3 Simple halochromic material 2 Complex none of the above 2 Simple anisotropic and hetrogeneous 4 Complex 220C 3 Simple for measuring diameter of deep bores Complex 2 Average levelling depth 2 Simple Random Error 2 Complex 200 mm 3 Simple can reduce the problem of vibration Complex 4 "U" chart 3 Simple untrained operator 2 Complex (1-)/2 2 Simple acceptance number is zero for ideal sampling plan 4 Complex none of the above 1 Simple none of the above 3 Simple none of the above 3 Simple ocurs when approaching flow is supersonic 4 Simple all of the above 4 Simple Air 2 Simple none of the above 2 Simple none of the above 3 Simple the density and temperature decrease Simple 2 none of the above 1 Simple work hardening 4 Simple all of the above 4 Simple surface table 3 Complex 0.60% 1 Complex 400 deg.C 3 Simple kerosene 4 Complex UTM 2 Simple 100 to 500 microns 2 Complex Is not used for machining 2 Complex flux 4 Simple weight 3 Simple Spary painting 4 Simple Tray 3 Simple DEPART 2 Simple Binary signal 2 Simple 4 3 Simple RCC 4 Simple LVDT 1 Simple

All of the above Rotational Joint TLO Pneumatic drive RVDT Magnetic gripper Joint Above the base Adhesive type Accuray range sensor adiabatic irreversible cycles temperature of source and sink change of heat zero 420c T/cp zero 2100kj/s 1.33 1.35 Density 10,000 of H2O State of a system none Internal energy n=1.3 50% 90% Third law 6 Brayton cycle 90% none none none overloading the condeser None 0.2 none none W/m^2 hr K None of the above Sinusoidal

3 4 3 2 3 4 2 1 2 3 2 1 4 4 4 3 4 4 2 4 2 1 1 3 2 3 2 1 2 1 1 1 1 2 2 2 3 1 1 2 2 2 1 3

Simple Simple Simple Simple Simple Simple Simple Simple Simple Simple Simple Simple Simple Simple Simple Complex Complex Complex Complex Complex Complex Simple Simple Simple Simple Simple Simple Simple Simple Simple Simple Simple Simple Simple Simple Simple Simple Simple Simple Simple Simple Simple Simple Simple

Fourier 4 Unpredictable 2 Nusselt number 3 Radiation 1 None of the above 3 None of the above 3