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SSC JE EE Score Booster Quiz 9

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Question 1

Armature current at starting can be reduced by keeping

Question 2

A P-pole lap would d.c. machine has an armature current Description: Description: E:\Gate\SSC-JE Electrical - Part 1\17_DC-Generators-final-2_files\image313.png The conductor current in the armature winding is

Question 3

In a series wound d.c. machine (generator or motor), the series field winding consists of

Question 4

The brush contact losses in a d.c. machine is

Question 5

The field control of a DC shunt motor gives_____.

Question 6

Maximum power will be developed when back emf is

Question 7

No load saturation characteristics are plotted between

Question 8

Which of the following motor is suitable for driving cranes, hoists, centrifugal pumps, conveyor belt etc.?

Question 9

A motor takes a large current at starting because…………………

Question 10

A 220 V d.c. series motor is taking a current of 40 A, Resistance of armature 0.5Ω and resistance of series field 0.25Ω. find the value of back emf induced in the armature?

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Mar 24ESE & GATE EE