a) Mercury arc rectifiers b) Rotating machines c) Generator d) Transformers Ans: (b)
a) Ring type b) Mesh type c) Radial type d) None of these Ans: (c)
a) 220 V between phases b) 400 V between phases c) 3.3 kV between phases d) None of these Ans: (b)
a) Voltage source b) Current source c) Power source d) All of these Ans: (a)
a) Ring type b) Mesh type c) Radial type d) All of these Ans: (c)
a) Its potential gradient increases b) Insulation required is less c) Corona loss is reduced d) Potential between conductor and ground decreases Ans: (a)
a) Shunt generations b) Power capacitances c) SCR d) Motor-generator set Ans: (c)
a) Receiving end voltage can exceed sending end voltage b) Receiving end voltage can’s exceed sending end voltage c) Capacitive charging current is reduced d) None of these Ans: (a)
a) Of less cost, line inductance & corona loss b) They are easy to fabricate c) Only bundled conductors can withstand high voltages d) All of these Ans: (a)
a) Pressure provides the necessary strength b) Pressure provides the necessary voltage bearing capacity c) Pressure will avoid the formation of voids d) All of these Ans: (c)
a) Low impedance b) Low resistance c) Low reactance d) High resistance Ans: (b)
a) 11 kV b) 33 kV c) 132 kV d) 200 kV Ans: (d)
 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 |