TS Mocktest 2021-10

1. The increase in resistance due to non uniform distribution of current in the conductor is known as

A. Ferranti effect
B. Corona effect
C. Skin effect
D. Pinch effect

Answer : Skin effect
Explanation:-

2. The maximum allowable value of earthing resistance for large power stations is:

A. 0.5 ohm
B. 0.1 ohm
C. 100 ohm
D. 10.23 ohm

Answer : 0.1 ohm
Explanation:-

3. What is the maximum load that can be connected in a circuit connecting only lighting points?

A. 800 Watts
B. 500 Watts
C. 750 Watts
D. 1000 Watts

Answer : 800 Watts
Explanation:-

4. The material used for wiring continuous bus bar is

A. Copper
B. Aluminium
C. Brass
D. Bronze

Answer : Aluminium
Explanation:-

5. The section with respect to IE Act1910, the theft of electrical energy correspond to

A. Section 49
B. Section 40
C. Section 59
D. Section 39

Answer : Section 39
Explanation:-

6. Lumens =

A. Candle power x solid angle
B. Candle power / solid angle
C. Candle power + solid angle
D. Solid angle / candle power

Answer : Candle power x solid angle
Explanation:-

7. The electrode of direct arc furnace is made of

A. Copper
B. Silver
C. Graphite
D. Aluminium

Answer : Graphite
Explanation:-

8. To join the electronic components the following method is used

A. Seam welding
B. Spot welding
C. Brazing
D. Soldering

Answer : Soldering
Explanation:- Soldering process is used to join the electronic components whereas other welding process are used to join metals

9. To start the DC shunt motor the starter used is

A. 3-point starter
B. DOL starter
C. Star / Delta starter
D. Auto transformer starter

Answer : 3-point starter
Explanation:- 3-Point starter is used to start the DC Shunt motor whereas DOL Starter,star/delta starter,Auto transformer starter are used in staring of AC Motors

10. The class of fire occur in the electrical equipment is

A. Class - D fire
B. Class - C fire
C. Class - B fire
D. Class - A fire

Answer : Class - C fire
Explanation:-