a) Increases b) Decreases c) Remains constant d) May increases or decreases depending on the power factor Ans: (a)
a) Convertor b) Exciter c) Inverter d) Rectifier Ans: (b)
a) 360° b) 720° c) 1440° d) 2880° Ans: (a)
a) No slip rings b) Two slip rings c) Three slip rings d) Four slip rings Ans: (b)
a) Self and mutual induction b) Self mutual induction c) Faraday’s law of electromagnetic induction d) Mutual induction Ans: (c)
a) Rises b) Drops c) Remains unchanged d) May drop or rise Ans: (d)
a) 38° b) 36° c) 33° d) 30° Ans: (b)
a) A separate dc generator driver by some source b) A separate ac generator drive by some source c) A dc generator coupled directly to the armature shaft d) A battery Ans: (c)
a) Cold rolled grain oriented steel b) Hot rolled grain oriented steel c) Wrought iron d) Cast steel Ans: (c)
a) 0.05 b) 0.2 c) 0.4 d) 0.6 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 |