Junior Engg. Questions

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Q1:-In a parallel RLC circuit if the lower cut off frequency is 2400 Hz and the upper cut off frequency is 2800 Hz what is the band width?

1. 400 Hz
2. 5200 Hz
3. 2400 Hz
4. 2800 Hz 

ANSWER:- 1

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Q2:-How much energy is stored by a 100 mH inductance when a current at the rate of 2 A/sec , then emf induced in the other coil is ?

1. 0.005 J
2. 5.0 J
3. 0.05 J
4. 0.5 J

ANSWER:- 3

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Q3:- If a dynamometer type wattmeter is connected in an ac circuit the power indicated by the wattmeter will be 

1. peak power
2. average power
3. instantaneous power 
4. volt ampere product 
5. ANSWER:- 2

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Q4:- If the number of turns of a coil is increased, its indctance

1. remains the same
2. is decreased
3. non of these
4. is increased

ANSWER:- 4

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Q5:- Base load of a power station stands for?

1. 2-4 hours/day
2. 4-8 hours/day
3. 12-24 hours/day
4. 8-12 hours/day

ANSWER:-3

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