Discussion
State TRUE/FALSE for following statements:
1. Salient pole type rotors are used in turbo alternators.
2. Cylindrical rotor type alternators are driven by solar cell.
Answer: B
Both statements are false. Salient pole rotors have projecting poles and are used in low speed machines, such as those driven by hydraulic turbines and diesel engines. Turbo alternators run at high speed and use cylindrical (non-salient) rotors, so the first statement is false.
Cylindrical rotor alternators are driven by steam or gas turbines, and not by a solar cell, which is a source of electrical power and not a prime mover. So the second statement is also false. The key gives 'False, False', the second option.
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