Swinburnes test is applicable to
A. DC compound motor.
B. DC shunt motor.
C. DC series motor.
D. none of the above.
Show Answer
Answer: B
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The correct answer is B. DC shunt motor.
Swinburne’s test is a method used to determine the efficiency of a DC shunt motor. In this test, the motor is run as a generator and its losses are determined by measuring the power input and output. By knowing the losses, the efficiency of the motor can be calculated.
This test is specifically applicable to DC shunt motors, as the test setup and calculations are based on the characteristics and operation of a shunt motor. It may not be suitable for other types of DC motors such as series motors or compound motors, as their operating principles and characteristics may differ.