Explore topic-wise MCQs in Design Electrical Machines.

This section includes 17 Mcqs, each offering curated multiple-choice questions to sharpen your Design Electrical Machines knowledge and support exam preparation. Choose a topic below to get started.

1.

To reduce the peak voltage between layers, the secondary winding is being sectionalized.

A. true
B. false
Answer» B. false
2.

What is the insulation material on the primary conductor?

A. bakelized paper tube
B. resin
C. bakelized paper tube and resin
D. bakelized paper tube or resin
Answer» E.
3.

The current transformers are assembled on to the secondary conductors “on site” for either permanent or temporary duty.

A. true
B. false
Answer» C.
4.

How many faces are present in the split core current transformer?

A. 2
B. 3
C. 4
D. 5
Answer» B. 3
5.

What is the bar type current transformer?

A. primary winding consists of a rod of suitable size and material
B. primary winding consists of a bar of suitable size and material
C. secondary winding consists of a rod of suitable size and material
D. secondary winding consists of a bar of suitable size and material
Answer» C. secondary winding consists of a rod of suitable size and material
6.

HOW_MANY_FACES_ARE_PRESENT_IN_THE_SPLIT_CORE_CURRENT_TRANSFORMER??$

A. 2
B. 3
C. 4
D. 5
Answer» B. 3
7.

What is the insulation material on the primary conductor?$

A. bakelized paper tube
B. resin
C. bakelized paper tube and resin
D. bakelized paper tube or resin
Answer» E.
8.

The_current_transformers_are_assembled_on_to_the_secondary_conductors_“on_site”_for_either_permanent_or_temporary_duty?$#

A. true
B. false
Answer» C.
9.

To reduce the peak voltage between layers, the secondary winding is being sectionalized?

A. true
B. false
Answer» B. false
10.

How is the reluctance of the interleaved corner related with the magnetizing current?

A. reluctance of the interleaved corner is directly proportional to the magnetizing current
B. reluctance of the interleaved corner is indirectly proportional to the magnetizing current
C. reluctance of the interleaved corner is directly proportional to the square of the magnetizing current
D. reluctance of the interleaved corner is indirectly proportional to the square of the magnetizing current
Answer» B. reluctance of the interleaved corner is indirectly proportional to the magnetizing current
11.

What is the other name of the ring type current transformer?

A. brush transformer
B. cloud transformer
C. circular transformer
D. bushing transformer
Answer» E.
12.

What is the additional usage of the presspahn material used as insulation material?

A. lamination
B. to reduce the losses
C. to protect secondary winding conductor from mechanical damage
D. to protect secondary winding conductor from electrical damage
Answer» D. to protect secondary winding conductor from electrical damage
13.

What is the insulation material used in the current transformer?

A. elephantide
B. presspahn
C. elephantide and presspahn
D. elephantide or presspahn
Answer» E.
14.

What material is made use of for the lamination in the current transformer?

A. cold rolled steels
B. hot rolled steels
C. copper
D. hot iron
Answer» C. copper
15.

How many commonly used shapes of current transformer are present?

A. 1
B. 2
C. 3
D. 4
Answer» D. 4
16.

What is the wound type current transformer?

A. primary winding having one full turn wound on core
B. primary winding having more than one full turn wound on core
C. secondary winding having one full turn wound on core
D. secondary winding having more than one full turn wound on core
Answer» C. secondary winding having one full turn wound on core
17.

How many types are the current transformers classified into?

A. 2
B. 3
C. 4
D. 5
Answer» B. 3