Iecep Geas1 October 2011

8/20/2019 Iecep Geas1 October 2011

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le. Feel ree to add new questions. Just add a new challenge, and include a "question", the "

According to ______, all objects radiate energy, no matter what their temperature happens to be.

Stefan – Boltzmann LawPascal’s Law

Huygens’ Principle

Boltzmann Law

ho is called the !ather o! modern science precisely because he initiated the comparison between theory and e"per

Plato

Aristotle

Galileo #ocrates

How many million tons o! hydrogen are con$erted into helium e$ery second at the sun%

&'' million tons

('' million tons

)'' million tons

700 million tons

hat is the unit o! radiation which ta*es into account its biological e!!ects%

millirem

millisem

siemens

hertz

hat is the e"pression o! the magnitude and direction o! the lattice distortion associated with dislocation%

+ector graph

Line $ector

+ector iagram

Burgers Vector


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-t states that two images are just resoluable when the center o! di!!raction dis* o! one is directly o$er the !irst mini

elay criteria

ayleigh criterion

Radio Criterion

/one o! the abo$e

Stokes Theorem

0radient 1heorem

+ector 1heorem

/one o! the abo$e

2ast -rons that contains &.34 2 is *nown as ____. utectic cast iron

5utectiod cast iron

5utectic cast iron

5utectiod cast iron

At temperature abo$e ________, iron is li6uid !orm

738( deg 2

87' deg 2 !"#0 deg C

9): deg 2

steel

Cast iron

alpha;!errite

graphite

______ is use to nulli!y the e!!ect harm!ul e!!ect o! sulphur in steel and is added during deo"idation

4 carbon are *nown as ______


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$anganese

Phosphorus

1he intermetallic compound iron carbide is called ________

Austenite Cementite

!errite

pearlite

#teels which contain less than '.:42 are *nown as __________

%&'oeutectiod Steel

Hypereutectiod #teel

Hypereutectic #teel Hypoeutectic #teel

2ast iron that contains more than &.342 is *nown as ________

%&'oeutectiod Cast (ron

Hypereutectiod 2ast -ron

Hypereutectic 2ast

Hypoeutectic 2ast -ron

_____ raises the elastic limit and ultimate strength o! the steel without reducing the ductility

Phosphorus

#ul!ur


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1he trans!ormation product o! austenite at low temperature is *nown as _______

Any steel heated to a particular temperature abo$e the critical temperature results in the !ormation o! ______

2ementite

)ustenite


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1he purpose o! _____ is to re!ine the grain structure and decrease the residual stress to impro$e the machinability.

1o eliminate=reduce residual stresses, steel is subjected to ________ annealing

1he !irst stage in the heat remo$al during 6uenching is ____

___ is the process by which the carbon content o! the steel is increased

Hardening

?uenching

Annealing

+ormalising

+ecrstalliation

herodising

Stress relief

Full

1he purpose o! ____ annealing is to impro$e ductility, remo$e internal stress, enhance magnetic and electrical properties and re!ine grain structure

ecrystallization

#tress relie!

#pherodising

,ull

Va'our -lanket stage

+apour transport stage

Li6uid cooling stage

+apour cooling stage

Hardening is always !ollowed by _____ in order relie$e the residual stresses an impro$e the ductility andtoughness o! the hardened steel

Heat treatment

Annealing

Tem'ering

Hardening

2arbonitriding


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1he condition o! e6uilibrium o! a body will remain unchanged i! a !orce acting at a gi$en point o! the rigid body is 1or6ue

Transmissi-ilit&


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Sta-le uili-rium


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A single 6uantum o! $ibrational or elastic energy.

'honon

Photon

6uar*s

leptons

1he time;dependent permanent de!ormation that occurs under stressJ !or most materials it is important only at ele$a

Cree'

ren*el de!ect

Plastic de!ormation

Point de!ect

-n mechanical $ibration, what do you call the ma"imum displacement o! the body !rom its e6uilibrium position a$e

Gscillation

)m'litude

istance

-n 5ngineering 5conomy, what do you call the method o! repaying a debt, the principal and interest included, usuall

)mortization

epreciation

Annuity

e!lation

hich among the crystal system has the least symmetry due to its une6ual unit cell dimensions and angles%

Biclinic

?uadclinic


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-t is a time;dependent elastic beha$ior o! materials.

)nelastic

-nelastic

Plastic /on;elastic

-t is a de$ice used to measure amount o! elongation.

5longonometer

Longatometer

Tachometer

Extensometer


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answer" and 4 otions. a #oding! --$


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Iecep Geas1 October 2011

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