a) Adding series combination of capacitor and auxiliary winding in parallel with the main winding b) Adding an auxiliary winding in parallel with the main winding c) Adding an auxiliary winding in series with a capacitor and the main winding d) None of these Ans: (a)
a) Reluctance motor b) Hysteresis motor c) Universal motor d) All of the above Ans: (c)
a) Universal motor b) Split phase motor c) Synchronous motor d) All have identical starting torque Ans: (a)
a) Large starting torque b) Zero starting torque c) Medium starting torque d) Very small starting torque Ans: (b)
a) Open circuit in auxiliary winding b) Open circuit in many winding c) Blown fuses d) Any of the above Ans: (d)
a) Overloading b) Short winding c) Bearing troubles d) Any of above Ans: (d)
a) Auxiliary winding b) Mani winding c) Either (a) or (b) d) Speed can not be reversed Ans: (c)
a) Overload b) Low frequency c) Low voltage d) Any of these Ans: (d)
a) Units b) 0.6 leading c) 0.8 leading d) 0.6 lagging Ans: (d)
a) Capacitor run motor b) Capacitor start motor c) Reluctance motor d) All have almost the same cost Ans: (b)
 Multiple Choice Question (MCQ) of Electronics page-17:241. Which of the following statement is true? a) The saturation voltage VCF of silicon transistor is more than germanium transistor. b) The saturation voltage VCE for germanium transistor is more than silicon transistor. c) The saturation voltage VCE for silicon transistor is same as that for germanium. d) The saturation voltage VCE for silicon transistor is lower than germanium transistor. |
Multiple Choice Question (MCQ) of Electronics page-16:226. Which of the following statement is correct? a) Inner electrons are always present in the semiconductor. b) Bound electrons are always present in the semiconductor. c) Free electrons are always present in the semiconductor. d) Inner and bound electrons are always present in the semiconductor. |
Multiple Choice Question (MCQ) of Electronics page-15:211. The materials whose electrical conductivity is usually less than 1 × 106 mho/m are a) Semiconductors b) Conductors c) Insulators d) Alloys |
Multiple Choice Question (MCQ) of Electronics page-14:196. In which of the following device the base resistors are not added in the package but added externally? a) UJT b) CUJT c) PUT d) None of the above |
Multiple Choice Question (MCQ) of Electronics page-13:181. The conduction in JEFT is always by the a) Majority carriers b) Minority carriers c) Holes d) Electrons e) Holes and electrons simultaneously |