RRB JOBS QUESTION BANK : JUNIOR ENGINEER (AC) TRUE OR FALSE

INDICATE TRUE OR FALSE TO THE FOLLOWING:

1)       Without EMD the tender offer is valid.   False

2)       Amps is the unit of current    True

3)       Tinned copper conductor of 14SWG is used as earth continuity wire in the

4)        Internal Wiring system.    True

5)        Wood is the bad conductor of electricity.   True

6)        Oil is used as a insulation in the power transformers.  False

7)         The minimum capacity of power transformer on electrical General Services is 100KVA True

8)         Finance vetting is required, if the cost of NS item exceeds Rs. 50,000/- while

9)         Procuring through COS.  True

10)       The open tenders are to be opened in presence of a Accounts Officer.  True

11)       The codal life of VLRA batteries is 04 years.  True

12)       If a cell voltage is found less than 1.9 Volts, it should be weed out.  False

13)       The SPG of sulphuric acid which is used to make electrolyte is 1.835.  True

14)       The L1, L2 and Fan Circuit fuse rating is 16 A in Roof Junction Box.  True

15)       The bulk inverter capacity in AC 2 tier for cell phone charging is 6KVA.  False

16)       Single-phase preventer should be used to protect the motor from single phasing.  True

17)       The minimum safe value of insulation resistance of motor is 20 MΩ.  False

  18)       Multi meter is used to measure insulation resistance and megger is used to measure the winding resistance of the motor.  False

  19)       If a motor is getting unduly hot, the reason may be overloaded or bearing may be defective. True

  20)       Compressor works like a pump by drawing refrigerant vapor from the evaporator and sends to condenser.  True