Electrical Machines
Torque developed in the rotor is

 not dependent on the slip
 directly proportional to slip
 either of these
 inversely proportional to slip

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Electrical Machines
Consider the following statements: To control the speed of a dc shunt motor above the base speed over a reasonably wide range, the motor must 1. have compensating winding 2. have interpole winding 3. be started using a 3-point starter 4. be started using a 4-point starter Of these statements

 1, 2 and 3 are correct
 2 and 4 are correct
 1 and 3 are correct
 1, 2 and 4 are correct

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Electrical Machines
A belt-driven cumulatively-compound dc generator is delivering power to the dc mains. If the Belt snaps then the machine will run as a

 differentially compounded motor in the same direction
 differentially compounded motor in the opposite direction
 cumulative compounded motor in opposite direction
 cumulative compounded motor in the same direction

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