MODULE 04 B1 - MOCK TEST 20 MARKS

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Which diode is heavily doped

1 point

Varactor diode

Tunnel diode

Zener diode

Clear selection

Which is the most commonly used coating film

1 point

Alluminium foil

Semiconductor

Copper foil

Clear selection

An IC has …………. Size

1 point

a)Very large

b)Large

c)Extremely small

d)Non of the above

Clear selection

Most commonly IC is used

1 point

a)Thin film

b)Hybrid

c)Monolithic

d)None of the above

Clear selection

In torque syncro stator is

1 point

a)Star connection with winding 120 degree apart

b) Delta connection with winding 120 degree apart

c) BOTH

Clear selection

Which diode have 4 semiconductor layer

1 point

a)Shockley DIODE

b)Varactor diode

c)Tunnel diode

Clear selection

Emitter is heavily doped so where it will provide more charges

1 point

a)Base

b)Collector

c) Base & collector

Clear selection

Most of the electrons in the base of an transistor flow

1 point

a. Out of the base lead

b. Into the collector

c. Into the emitter

d. Into the base supply

Clear selection

LED is made of

1 point

a) Gallium arsenide (GaAs) and gallium phosphide

b) Germanium & silicon

c)None of the above

d)Silicon

Clear selection

Peel strength of PCB

1 point

a)Minimum load required to pull a strip of foil (either 1 inch or 18 inch wide) from the base material.

b)Maximum load required to pull a strip of foil (either 1 inch or 18 inch wide) from the base material.

c) BOTH

Clear selection

Advantage of IC

1 point

a) High power requirments

b)High cost

c) Greater ability to operate at extreme values of temperature.

d)High weight

Clear selection

The emitter of a transistor is ------ doped

1 point

a)Lightly

b) Heavily

c)Moderately

d)None of the above

Clear selection

In transistor

1 point

a) Emitter Current = Base Current + Collector Current

b) Base Current = Emitter Current + Collector Current

c) Collector Current = Base Current + Emitter Current

Clear selection

In Open loop servomechanism

1 point

a) Part of output connected to input

b) Output is not connected to input

c) Depends on requirement

Clear selection

Rectifier diodes are

1 point

a) Used to handle high current and enclosed in metal for heat sink.

b) No specific current

c) LED emits light

Clear selection

In Transistors

1 point

a) Base is thinner than emitter and collector is larger than base and emitter

b) Base, emitter and collector are same in size

c) Emitter is larger than collector and base.

Clear selection

In IC circuit static charge is prevented by

1 point

a) Material is grounded

b) Person is grounded

c) Both

Clear selection

Capacitor used in synchro

1 point

a) Reduce current & Increase accuracy

b) Reduce current and reduce accuracy

c) Increase current and reduce accuracy

d) Increase current and increase accuracy

Clear selection

TTL Operating Voltage

1 point

a) 5 V DC

b) 6 V DC

c) 4 v DC

Clear selection

In SCR -

1 point

a) Load is connected in parallel with anode

b) Load is connected in parallel with cathode

c) Load is connected in series with anode

Clear selection

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