1. . A motor converts electrical energy to…………energy.
(A) Electrical
(B) Mechanical
(C) Wind
(D) any of above
2. . There is ………. Difference between motor and generator regarding construction
(A) No
(B) Power
(C) EMF
(D) current
3. . Motor can be drip proof, Semi guarded and………… type
(A) Heat proof
(B) Water resistance
(C) Guarded
(D) All
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 above
5. . DC motor can be run as…………..
(A) Induction motor
(B) Servo motor
(C) DC generator
(D) step motor
6. . Back emf is also known as …………...
(A) Back current
(B) Reverse recovery EMF
(C) counter emf
(D) Surge emf
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)²
8. . DC motor have……… types.
(A) Two
(B) Three
(C) Four
(D) Five
9. . Series motor are used in ………. Torque applications.
(A) Low
(B) High
(C) Medium
(D) For all
10. . The field winding is in ………… of a shunt motors to armature.
(A) Series
(B) Shunt
(C) Compound
(D) Long shunt