Electrical Machine Design MCQ Questions & Answers

1.
D.C. machines designed with a large value of air gap length have

A. worst, ventilation

B. poor ventilation

C. better ventilation

D. none of the above

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2.
_________ electromagnets generally function as holding magnets.

A. Tractive

B. Portative

C. Either of the above

D. None of the above

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3.
By which of the following methods motor rating for variable load drives can be determined ?

A. Method of average losses

B. Equivalent current method

C. Equivalent torque method

D. Equivalent power method

E. All of the above

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4.
In direct cooled system using hydrogen both stator and rotor conductors are made

A. solid

B. hollow

C. perforated

D. any ofthe above

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5.
On which of the following variables heat convected depends ?

A. Power density

B. Temperature difference between heated surface and coolant

C. Thermal resistivity, density, specific heat

D. Gravitational constant

E. All of the above

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Electrical Machine Design MCQ Questions & Answers | Electrical Engineering

1. D.C. machines designed with a large value of air gap length have

Answer & Solution

2. _________ electromagnets generally function as holding magnets.

Answer & Solution

3. By which of the following methods motor rating for variable load drives can be determined ?

Answer & Solution

4. In direct cooled system using hydrogen both stator and rotor conductors are made

Answer & Solution

5. On which of the following variables heat convected depends ?

Answer & Solution

Read More Section(Electrical Machine Design)

1.
D.C. machines designed with a large value of air gap length have

2.
_________ electromagnets generally function as holding magnets.

3.
By which of the following methods motor rating for variable load drives can be determined ?

4.
In direct cooled system using hydrogen both stator and rotor conductors are made

5.
On which of the following variables heat convected depends ?