a) Earth faults b) Interphase faults c) Both (a) and (b) d) None of these Ans: (c)
a) Transformer b) Alternator c) Overhead lines d) C.T., P.T. Ans: (d)
a) Speed & reliability b) Aped & sensitivity c) Adequateness & selectivity d) All of these Ans: (d)
a) Improve neutral wire’s current capacity b) Avoid overheating of transformer c) Provide artificial earthing d) Avoid harmonics Ans: (c)
a) Inter-turn faults b) Heavy Loads c) External Faults d) Magnetizing current Ans: (d)
a) Over voltage b) Short circuits c) Over current d) All of these Ans: (b)
a) Permanent moving magnet b) Induction cup c) Shaded pole d) Moving coil Ans: (a)
a) In three zones b) In two zones c) Independent of zone d) None of these Ans: (a)
a) Current b) Power c) Voltage d) Impedance Ans: (d)
a) Over load faults b) Over voltage c) Inter turn faults d) All of these Ans: (c)
 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 |