LTE stands for Long Term Evolution and is sometimes referred to as 4G LTE.

It's a standard for wireless data transmission that allows you to download

your favorite music, websites, and video really fast—much faster than you

could with the previous technology, 3G.

……………................................................................................................

Q1) LTE in mobile communication is stand for:

A) Long ter evo ution

B) Large term evolution

C) Long time evolution

D) All of the above are true

FAUJI FERTILIZER COMPANY LIMITED FFC

(MTO-INSTRUMENT/ ELECTRONIC Paper 3rd, January2021)

Q2) The light sources used in fiber optic communication are:

A) LEDs

B) Semiconductor lasers

C) Phototransistors

D) Both A and B

Q3) Broadband speed measures in:

A) Bps

B) Kbps

C) Mbps

D) Gbps

Q4) In transmission line. ................ is used due to lightweight:

A) Copper

B) Gold

C) Silver

D) Aluminum

The most extensively used material in transmission line is

Aluminum. Aluminum is having sufficient conductivity. More ever it

is light in weight. The only limitation is its low tensile strength.

Q5) The transfer function of thermometer is:

A)

B)

C)

D)

Q6) Analog techniques are:

A) FM

B) FSK

C) PSK

D) ASK

Q7) Which antenna is used to find the direction:

A) Yagi antenna

B) Parabolic reflector antenna

C) Micro-strip enna

D) Loop antenna

Q8) Sound signals in TV broadcast is:

A) FM

B) AM

C) QAM

D) PM

Q9) Which of the following antennas is the standard reference

antenna for directiveness:

A) Elementary doublet

B) Half-wave dipole

C) Isotropic antenna

D) Rhombic antenna

Q10) Which is a non-resonant antenna:

A) Rhomb antenna

B) Folded dipole

C) End-fire array

D) Yagi-Uda antenna

Q11) (𝟏𝟏𝟏𝟏𝟏𝟏𝟏)𝟐 in decimal

is: A) 122

B) 127

C) 128

D) 123

BCD was used in many early decimal computers, and is

implemented in the instruction set of machines such

as the IBM System/360 series and its descendants,

Digital Equipment Corporation's VAX, the Burroughs

B1700, and the Motorola 68000-series processors.

Q12) (𝟏𝟎𝟏𝟎𝟏𝟎)𝟐 in decimal is:

A) 62

B) 52

C) 32

D) 42

Q13) BCD code is used for:

A)

B)

C)

D)

Q14) Electrical transducer is to convert:

A) Electrical signal into non electrical quantity

B) Non electrical quantity into electrical signal

C) Electrical signal into mechanical quantity

D) All of these

The Q-factor of a parallel resonance circuit is the

inverse of the expression for the Q-factor of the

series circuit. Also in series resonance circuits the

Q-factor gives the voltage magnification of

the circuit, whereas in a parallel circuit it gives the

current magnification.

Q15) Parallel resonance circuit magnifies:

A) Power

B) Voltage

C) Current

D) All of the above

Q16) PLC is used for:

A)

B)

C)

D)

A programmable logic controller, PLC, or

programmable controller is a digital

computer used for automation of typically

industrial electromechanical processes,

3 graphical languages: Ladder

Diagram, Function Block Diagram (FBD)

and Sequential Function Chart (SFC)

Q17) Which programming is used in PLCs:

A) Ladder logic

B) Function block diagram

C) Both A and B

D) None of the above

Q18) Transfer function is used to calculate:

A) Output for any given input

B) Input for any given output

C) Both A and B

D) Calculate power

Q19) PLC is REPLACED BY:

A) Relays

B) Microprocessor

C) Microcontroller

D) All of the above

Q20) In pneumatic control systems the control valve used as final

B)

C)

D) Position change to pressure signal

Q21) Combination of AND gate and NOT gate is:

A) NAND gate

B) OR gate

C) XOR gate

D) XNOR gate

A) Pressure signal to electric signal control element converts:

Pressure signal to position change

Electric signal to pressure signal

Some microphone types that often have flat

frequency responses. They include: Small-

diaphragm condenser microphones. Large-

diaphragm condenser microphones.

Q22) Output of XOR gtae is high:

A) When input 1 is low and other input is high

B)

C)

D)

Q23) UJT output is taken from:

A) Collector

B) Emitter

C) Base 1 and 2

D) All of the above

Q24) Which microphone used flat frequency:

A)

B)

C)

D)

Q25) Excessive noise in control systems can cause:

A) Reduction in bandwidth

B) Reduction in gain

C) Saturation in amplifying stages

D) Oscillations

Q26) How many NAND gates required to construct AND gate:

A) 1

B) 2

C) 3

D) 3

Q27) Controller is a:

A) Comparator

B) Amplifier

C) Both

D) None

Q28) 100% modulation in FM means:

A) Actual frequency > maximum frequency

B) Actual frequency = maximum frequency

C) Actual frequency < maximum frequency

D) None of the above

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