Basic Electrical Engineering (3110005) MCQs

MCQs of Electrical Installations

Showing 11 to 20 out of 83 Questions
1 2 3 4 5 6
11.
The material used for fuse must have
(a) low melting point and high specific resistance
(b) low melting point and low specific resistance
(c) high melting point and low specific resistance
(d) low melting point and any specific resistance
Answer:

Option (a)

12.
The full form of MCB is
(a) Main Circuit Breaker
(b) Miniature Circuit Breaker
(c) Major Circuit Breaker
(d) Mask Circuit Breaker
Answer:

Option (b)

13.
The full form of MCCB is
(a) Main Current Circuit Breaker
(b) Major Current Circuit Breaker
(c) Moulded Case Circuit Breaker
(d) Main Case Circuit Breaker
Answer:

Option (c)

14.
The full form of ELCB is
(a) Earth Line Circuit Breaker
(b) Earth Line Current Breaker
(c) Earth Leakage Current Breaker
(d) Earth Leakage Circuit Breaker
Answer:

Option (d)

15.
The rated current of MCB is
(a) Less than 10 A
(b) Less than 100 A
(c) More than 100 A
(d) More than 200 A
Answer:

Option (b)

16.
The MCCB is used in the range of
(a) 10 A to 100 A
(b) 100 A to 600 A
(c) 600 A to 1000 A
(d) 1000 A to 10000 A
Answer:

Option (b)

17.
The MCCB provides the protection against overload through ________________ mechanism.
(a) Thermal
(b) Electrical
(c) Magnetic
(d) Mechnaical
Answer:

Option (a)

18.
Which protective device will not operate due to over-current?
(a) Fuse
(b) MCB
(c) ELCB
(d) MCCB
Answer:

Option (c)

19.
Which protective device will not operate due to over-current?
(a) Fuse
(b) MCB
(c) ELCB
(d) MCCB
Answer:

Option (c)

20.
The insulating material for a cable should have
(a) low cost
(b) high dielectric strength
(c) high mechanical strength
(d) all of above
Answer:

Option (d)

Showing 11 to 20 out of 83 Questions
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