a) All the units will be equally loaded b) Feedback is easy c) VAR output of units decreased d) Loading of the units are adjusted t equal incremental fuel costs Ans: (d)
a) Saluting of swing equation b) Critical reclosure time c) Change in frequency errors d) Change in velocity errors Ans: (b)
a) Operating voltage b) Reactance of the lines c) Cross-section of conductor d) None of these Ans: (b)
a) Single machines and infinite bus b) Two machines and infinite bus c) Three machines and infinite bus d) Four machines and infinite bus Ans: (a)
a) It may go out of synchronism b) Speed will cross the rated speed c) It will burn d) It will stop instantaneously Ans: (a)
a) A constant power is flowing b) Frequency is exactly 50 Hz c) There is synchronism between machines and external tie lines d) All of these Ans: (c)
a) Increasing load on the plant b) Decreasing load on the plant c) Keeping load on the plant constant d) None of these Ans: (a)
a) Stability b) Instability c) Steady state stability d) None of these Ans: (b)
a) Increasing generation b) Decreasing generation c) Coordinating with other interconnected systems d) None of these Ans: (c)
a) Fault clearing time b) Strength of transmitting network c) Short circuit ratio of generating unit d) All of these 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 |