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LMRC JE 2018 EE: Practice Quiz 18
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Question 1
A generating station has an average demand of 15 MW. If the load factor is 60%, & its utilization factor is 80% then what is the reserve capacity of the plant?
Question 2
The total inductance of two coils connected in series with mutual inductance aiding self inductance is ; with mutual inductance opposing self inductance, the total inductance is . The mutual inductance M is given by;
Question 3
The operating point in Fig. is If what will be d.c. base current?
Question 4
In a 3-phase induction motor, the mechanical power developed in terms of air gap power is
Question 5
In an R-L series circuit, If current in the circuit is (5 – j 10) A. What is the power consumed in the circuit?
Question 6
Two coils have self inductances of 10 mH and 15 mH and effective inductance of 40 mH when connected in series aiding. The equivalent inductance when they are connected in series opposing is
Question 7
In order to reduce the cost of generation of electrical energy, the values of diversity factor (D.F.) and load factor (L.F.) should be
Question 8
Fig. shows one of the collector curves of a transistor. What is the knee voltage?
Question 9
Two coils have a mutual inductance of 0.005 H. The current changes in the first coil according to the equation where and . The maximum value of e.m.f. in the second coil is
Question 10
An R-L series circuit is connected to a voltage of v = 566 sin 314 tV. The circuit current is The value of inductance is
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ESE & GATE EEGeneralJul 2ESE & GATE EE