Specifications

QUESTIONS

Part - A

Choose the Correct Answer (1 Mark)

1. By performing continuity test, we can determine

i. existence of any open circuit in the electrical network

ii. existence of any short circuit in the electrical network

Choose the correct choice among the following.

A) i alone is correct B) ii alone is correct C) both are correct D) both are wrong

2. While touching the two probes of multimeter together, the meter should read

A) zero ohm B) infinite ohm C) any ohmic value between 0 and infinity

D) produce beep sound

3. Megger is the instrument used to measure

A) conductor resistance B) insulation resistance

C) supply voltage D) load current

4. The number of wattmeters required to measure total power in 3-phase 4- wire system is

A) 1 B) 2 C) 3 D) 4

5. Match the item in List I with with those of list II

List I List II

P. Ammeter W. continuity

Q. Multimeter X. power

R. Megger Y. current

S. Wattmeter Z. Insulation resistance

A) P-Y, Q-Z, R-W, S-X B) P-Z, Q-W, R-X, S-Y

C) P-X, Q-Y, R-Z, S-W D) P-Y, Q-W, R-Z, S-X

Part - B

Answer the following questions in one or two words (1 Mark)

1. Name the instrument to test just the presence or absence of voltage at any point in an

electric circuit.

2. While measuring resistance of the coil using multimeter, it reading indicates infinite

resistance. What does it mean?

3. The power in 230 V, DC circuit is 1000 W. Find the circuit current.