The maximum constant load torque under which a synchronous motor will pull into synchronism at rated rotor supply voltage and frequency is known as

A. 30° B. 60° C. 90° D. 180°

A. remains same as the original value B. decreases to half the original value C. tends to becomes zero D. increases to two times the original value

A. increases as the load increases B. decreases as the load decreases C. always remains constant D. none of the above

A. Universal motor B. Synchronous motor C. Induction motor D. Reluctance motor