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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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