Which of the following circuit is designed to dissipate heat produced in the machine?

DESIGN OF ELECTRICAL MACHINES PREPARED BY BOMMIRANI B

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Education
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University
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Hard
prashanth k
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
a) Electric circuit
b) Magnetic circuit
c) Dielectric circuit
d) Thermal circuit
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How should be the magnetic and electrical loadings in a highly efficient electric machine?
a) It must be small
b) It must be large
c) It must be equal to the current density
d) It must be equal to the flux density
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following factor mainly determines the type of insulation for an electrical machine?
a) Maximum allowable flux density
b) Maximum operating temperature
c) Maximum efficiency of the machine
d) Maximum allowable loss in machine
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following kind of conductors will require thicker insulation?
a) Large sized conductor
b) Small-sized conductor
c) Conductors with high permeance
d) Conductors with low permeance
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
What kind of emf is produced in an electric machine when the coil is stationary and flux varies with time?
a) Transformer emf
b) Motional emf
c) Interactional emf
d) Induction emf
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following materials is generally used in the design of electromagnetic machines?
a) Paramagnetic materials
b) Diamagnetic materials
c) Ferromagnetic materials
d) Core-magnetic materials
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What determines the output of a dc electric machine?
a) Only Total Magnetic loading
b) Only Total Electric loading
c) Total loadings
d) Either Total Magnetic loading or Total Electric loading
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