• Electrical Engineering Reference

Swinburne Test - DC Machines MCQs

Swinburne Test MCQs : This section focuses on the "Swinburne Test" in DC Machines. These Multiple Choice Questions (MCQs) should be practiced to improve the DC Machines skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.

Question 1

_____________ method is an indirect method of testing a DC machine.

A. Hopkin Test
B. Swinburne Test
C. James Test
D. None of the above

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Question 2

In Calculation of Efficiency, Ish is?

A. no load current
B. zero load current
C. shunt field current
D. All of the above

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Question 3

Which of the following losses occur in the machine?

A. Iron losses in the core
B. Friction and windings losses
C. Armature copper loss
D. All of the above

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Question 4

Which of the following Advantages of Swinburne’s Test?

A. Iron loss is neglected
B. This test is very convenient and economical
C. We cannot measure the temperature rise when the machine is loaded
D. The Swinburne’s test cannot be done to find its efficiency as it is a no load test

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Question 5

constant losses Pc equal to?

A. no load input + no load armature copper loss
B. no load input * no load armature copper loss
C. no load input - no load armature copper loss
D. no load armature copper loss * no load input

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Question 6

Machines having a constant flux are only eligible for Swinburne’s test.

A. TRUE
B. FALSE
C. Can be true or false
D. Can not say

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Question 7

Which of the following test will be suitable for testing two similar DC series motors of large capacity?

A. Swinburne’s test
B. Hopkinson’s test
C. Field test
D. Brake test

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Question 8

While carrying out Swinburne’s test at rated armature voltage motor will run at ____________

A. Speed equal to rated speed
B. Speed greater than rated speed
C. Speed less than rated speed
D. Can run anywhere

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Question 9

Efficiency calculated by Swinburne’s test is _____________

A. Depends on the manual errors
B. Exactly equal
C. Under-estimated
D. Over-estimated

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Question 10

Series machines cannot run on light loads, and the value of speed and flux varies greatly. Thus, the Swinburne’s Test is not applicable for series machines.

A. TRUE
B. FALSE
C. Can be true or false
D. Can not say

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