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MCQ - TNPSC JTO

JTO - 551 - Engineering Drawing and Draughtsman

551 - unit - 08 - Electrical Electronics and Network Components

17)   

 What is the main switching element in a flyback converter SMPS?

A.
B.
C.
D.
Answer: B
18)   

 In a CDMA mobile system, each user is separated by:

A.
B.
C.
D.
Answer: C
19)   

Which device connects two different networks and determines the best path?

A.
B.
C.
D.
Answer: C
20)   

Which topology has a central hub and all nodes connected to it?

A.
B.
C.
D.
21)   

 Which component is responsible for producing heat in an electric heater? 

A.
B.
C.
D.
22)   

  In a microwave oven, microwave generation is done by a: 

A.
B.
C.
D.
23)   

 An electric stove works on the principle of:

A.
B.
C.
D.
24)   

The sound in an electric buzzer is produced due to:

A.
B.
C.
D.
25)   

 In an earthing layout, the purpose of salt and charcoal is to:

A.
B.
C.
D.
26)   

 Which starter is used for large 3-phase motors and reduces voltage using transformer action? 

A.
B.
C.
D.
27)   

In compound motor layout diagrams, compound motors are preferred where: 

A.
B.
C.
D.
28)   

 In a three-phase switching circuit, what ensures balanced load distribution? 

A.
B.
C.
D.
29)   

 Which device is used to manually break a 3-phase circuit for maintenance?

A.
B.
C.
D.
30)   

 In a two-point starter, the field winding is: 

A.
B.
C.
D.
31)   

 In the block diagram of a DSO (Digital Storage Oscilloscope), which block converts analog signal to digital?

A.
B.
C.
D.
32)   

 In the block diagram of a function generator, the waveform is generated using a: 

A.
B.
C.
D.