Explore topic-wise MCQs in Electrical Measurements.

This section includes 18 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Measurements knowledge and support exam preparation. Choose a topic below to get started.

1.

Perminder has __________

A. medium saturation point of permeability
B. low saturation point of permeability
C. no saturation point of permeability
D. high saturation point of permeability
Answer» E.
Discussion
2.

Mumetal has ________

A. low permeability, high loss
B. high permeability, medium loss
C. medium permeability, high loss
D. high permeability, low loss
Answer» D. high permeability, low loss
Discussion
3.

In a shell type of core, the windings are ________

A. in the form of the shell
B. shorted with the primary windings
C. not wound
D. placed on the central limb
Answer» E.
Discussion
4.

In the ring type of core, the secondary winding is ________

A. non-uniformly distributed over the core
B. shorted with the primary winding
C. uniformly distributed over the core
D. connected in the form of a ring
Answer» D. connected in the form of a ring
Discussion
5.

In a 1000/5 A C.T., the number of secondary turns would be ________

A. 200
B. 199 or 198
C. 5
D. 1000
Answer» C. 5
Discussion
6.

The secondary leakage reactance of a C.T. ____________

A. increases its ratio error
B. decreases its ratio error
C. has no effect on its ratio error
D. increases the impedance of the circuit
Answer» B. decreases its ratio error
Discussion
7.

IN_THE_RING_TYPE_OF_CORE,_THE_SECONDARY_WINDING_IS_________?$

A. non-uniformly distributed over the core
B. shorted with the primary winding
C. uniformly distributed over the core
D. connected in the form of a ring
Answer» D. connected in the form of a ring
Discussion
8.

Mumetal has ________$

A. low permeability, high loss
B. high permeability, medium loss
C. medium permeability, high loss
D. high permeability, low loss
Answer» D. high permeability, low loss
Discussion
9.

In_a_shell_type_of_core,_the_windings_are_________$

A. in the form of the a shell
B. shorted with the primary windings
C. not wound
D. placed on the central limb
Answer» E.
Discussion
10.

Perminder_has___________

A. medium saturation point of permeability
B. low saturation point of permeability
C. no saturation point of permeability
D. high saturation point of permeability
Answer» E.
Discussion
11.

In a 1000/5 A C.T., the number of secondary turns would be _______?

A. 200
B. 199 or 198
C. 5
D. 1000
Answer» C. 5
Discussion
12.

What is the effect of reducing the secondary turns in a C.T. by 1%?

A. transformation ratio reduces by the same value
B. no effect
C. nominal ratio increase by the same value
D. secondary current increases by the same value
Answer» B. no effect
Discussion
13.

Turns compensation is used to obtain ________

A. to compensate the turns
B. to equalise the turns on the windings
C. to protect the equipment
D. transformation ratio equal to nominal ratio
Answer» E.
Discussion
14.

At high voltages, the current transformers are enclosed in a tank.

A. True
B. False
Answer» B. False
Discussion
15.

The windings of a C.T. are ________

A. tied together
B. shorted
C. wound over one another
D. grounded
Answer» D. grounded
Discussion
16.

Coils of a C.T. are separately wound.

A. True
B. False
Answer» B. False
Discussion
17.

Secondary and primary windings consist of ________

A. copper turns
B. 14 S.W.G copper wire and copper strip respectively
C. iron coils wound around
D. laminations
Answer» C. iron coils wound around
Discussion
18.

The secondary leakage reactance of a C.T.

A. increases its ratio error
B. decreases its ratio error
C. has no effect on its ratio error
D. increases the impedance of the circuit
Answer» B. decreases its ratio error
Discussion