[amp_mcq option1=”the motor will not start” option2=”the motor will run” option3=”the motor will run in reverse direction” option4=”the motor will run in the same direction at reduced r.p.m.” correct=”option1″]
The correct answer is: A. the motor will not start.
A single-phase motor uses a capacitor to create a rotating magnetic field. When the capacitor is short-circuited, the magnetic field is not created and the motor will not start.
Option B is incorrect because the motor will not start if the capacitor is short-circuited.
Option C is incorrect because the motor will not run in reverse direction if the capacitor is short-circuited.
Option D is incorrect because the motor will not run in the same direction at reduced r.p.m. if the capacitor is short-circuited.