Chapter 2 DC Motors MCQs 10 min Score: 0 Attempted: 0/10 Subscribe 1. . A motor converts electrical energy to…………energy. (A) Electrical (B) Mechanical (C) Wind (D) any of aboveShow All Answers 2. . There is ………. Difference between motor and generator regarding construction (A) No (B) Power (C) EMF (D) currentShow All Answers 3. . Motor can be drip proof, Semi guarded and………… type (A) Heat proof (B) Water resistance (C) Guarded (D) AllShow All Answers 4. . Direction of mechanical force produced in motor can be found by……….. (A) Coulomb’s law (B) Faraday’s law (C) Fleming’s left hand rule (D) none of aboveShow All Answers 5. . DC motor can be run as………….. (A) Induction motor (B) Servo motor (C) DC generator (D) step motorShow All Answers 6. . Back emf is also known as …………... (A) Back current (B) Reverse recovery EMF (C) counter emf (D) Surge emfShow All Answers 7. . The voltage equation of motor is ………… (A) V = Eb + Ia² R (B) V = Eb + Ia Ra (C) V = Eb + Ia Ra/f (D) V = Eb + (Ia R)²Show All Answers 8. . DC motor have……… types. (A) Two (B) Three (C) Four (D) FiveShow All Answers 9. . Series motor are used in ………. Torque applications. (A) Low (B) High (C) Medium (D) For allShow All Answers 10. . The field winding is in ………… of a shunt motors to armature. (A) Series (B) Shunt (C) Compound (D) Long shuntShow All Answers
