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July 19th, 2016, 10:55 AM
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DMRC Previous Year Question Paper For Junior Engineer

Can you please give here previous year question paper of Delhi Metro Rail Corporation (DMRC) Junior Engineer (Electrical ) exam ?

As per your request I am here giving you previous year question paper of Delhi Metro Rail Corporation Junior Engineer (Electrical ) exam.

DMRC Junior Engineer (Electrical ) Exam Paper :
1. When four resistances of 2W 1W; 5W 2W; 10W 5W and 15W 10 W are connected in parallel, the greatest
power is absorbed by
• 2 W, 1 W
• 5 W, 2 W
• 10 W, 5W
• 15 W, 10 W

2. A moving coil instrument has a resistance of 10 W and gives full scale deflection when carrying a
current of 50 mA. To measure current upto 100 A, we will have to connect
• 10 W resistance in series
• 10 W resistance in parallel
• 10/1999 W resistance in series
• 10/1999 W resistance in parallel

3. The ripple voltage in the output of a single phase half wave rectifier with 10 V rectified dc
voltage with resistive load and without filter will be
• 12.1 volt
• 1.21 volt
• 0.482 volt
• 4.82 volt

4. The transformer connection which has gained considerable popularity to serve 3-phase
equipment and single phase lighting load is
• Star/Star
• Delta/Delta
• Delta/Star
• Star/Delta

5. Transformer oil tester is used to know
• Permittivity
• Permeability
• Dielectric strength
• Resistance of the oil
6. Plate separation of a parallel plate air capacitor is reduced keeping the voltage constant. The
energy stored in the capacitor shall
• Increase
• Decrease
• Remain constant
• Remain zero

7. 1 Ampere of current is defined as
• 1 volt/sec
• 1 coulomb/sec
• 1 ohm/second
• 1 coulomb

8. The synchronous motor can be used as a capacitor
• By increasing excitation
• By decreasing excitation
• By increasing speed
• By decreasing speed

9. The actual speed of an induction motor is always
• Less than synchronous speed
• More than synchronous speed
• Equal to synchronous speed
• None of the above.

10. The purpose of connecting a capacitor in flourescent tube circuit is
• To increase switching on time
• To decrease switching off time
• To increase power factor
• To decrease power consumption

DMRC Junior Engineer (Electrical ) Exam Paper





Last edited by Neelurk; April 29th, 2020 at 11:53 AM.
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