sparksacademychennai@gmail.com +91 8190879379 Saidapet, Chennai

MCQ - TNPSC JTO

JTO - 440 - Welder

440 - Unit IV Arc Welding Power Sources

1)   

In welding, a transformer is mainly used to:

A.
B.
C.
D.
Answer: B
2)   

A welding transformer changes:

A.
B.
C.
D.
Answer: C
3)   

The device that converts mechanical energy to electrical energy is called:

A.
B.
C.
D.
Answer: C
4)   

In motor-generator (MG) welding sets, the motor is usually powered by:

A.
B.
C.
D.
Answer: B
5)   

The main advantage of MG sets for welding is:

A.
B.
C.
D.
Answer: B
6)   

A DC motor converts:

A.
B.
C.
D.
Answer: B
7)   

The generator in a welding MG set produces:

A.
B.
C.
D.
Answer: B
8)   

In welding transformers, open circuit voltage is generally in the range of:

A.
B.
C.
D.
Answer: B
9)   

Which of the following is NOT a type of motor used in welding MG sets?

A.
B.
C.
D.
Answer: D
10)   

An alternator used in welding generates:

A.
B.
C.
D.
Answer: B
11)   

A rectifier converts:

A.
B.
C.
D.
Answer: B
12)   

Which rectifier type is most common in welding machines?

A.
B.
C.
D.
Answer: C
13)   

The main advantage of rectifier welding sets is:

A.
B.
C.
D.
Answer: B
14)   

An inverter welding machine converts:

A.
B.
C.
D.
Answer: B
15)   

The inverter type welding machine is usually:

A.
B.
C.
D.
Answer: B
16)   

The main advantage of inverter welders is:

A.
B.
C.
D.
Answer: C