Junior Engg. Paper Set

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Q1:- The magnitude of AT required to establish a given value of flux in the air gap will be much greater than that required for Ion part of a magnetic circuit because

1. air is a gas
2. iron has the lowest permeability
3. air has the lowest relative permeability 
4. air is a good conductor of magnetic flux

ANSWER:-3

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Q2:- A linear circuit is one whose parameters

1. change with change in voltage
2. do not change with voltage and current
3. change with change in current 
4. all

ANSWER:-2

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Q3:-Moving coil instruments works on 

1. dc only
2. ac only
3. both ac and dc 
4. none

ANSWER:-1

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Q4:- Moving coil instruments also known as

1. PMMC
2. moving iron type
3. both
4. none

ANSWER:-1

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Q5:- Moving coil instruments can not use to measure

1. ac current
2. higher amp current
3. dc current both 1 and 2 
4. dc current

ANSWER:-3

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Q6:- Moving iron instrument has type

1. attraction type
2. repulsion type 
3. both 
4. none 

ANSWER:-3

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Q7:- Moving iron instrument work on 

1. ac 
2. dc 
3. both
4. none

ANSWER:-3

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Q8:- Which of the following motor is used in mixies ?

1. reluctance motor
2. repulsion motor
3. hysteresis motor
4. universal motor

ANSWER:-4

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Q9:- In bipolar junction transistors the type of configuration which will give both voltage gain and current gain is 

1. CC
2. CB
3. CE
4. none 

ANSWER:-3

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Q10:- An active element in a circuit is one which

1. dissipates energy
2. receives energy
3. both receives and supplies 
4. supplies energy

ANSWER:-4

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