A) It will burn B) It will stop C) It will run in reverse direction D) It will run as a dc generator Ans : (C)
A) friction losses B) eddy current losses C) copper losses D) stray losses. Ans : (D)
A) 133 N-m B) 100 N-m C) 67 N-m D) 180 N-m. Ans : (B)
A) the motor will burn B) the efficiency of motor will rise abruptly C) the motor will start hunting D) the motor will run faster than the rated value. Ans : (A)
A) 1000 rpm B) 1100 rpm C) 1200 rpm D) 1250 rpm. Ans : (B)
A) 1400 V B) 1000 V C) 500 V D) 250 V. Ans : (A)
A) Brake test B) Retardation test C) Hopkinson’s test D) Swinburne’s test. Ans : (D)
A) Field’s test B) Running down test C) Swinburne’s test D) Brake test. Ans : (B)
A) Slip rings B) Commutator C) Field winding D) Armature winding. Ans : (C) and (D)
A) 45o C B) 55o C C) 75o C D) 105o C. Ans : (C)