Railway Recruitment Board Exam Technical & Non-Technical Categories Model Question Papers/Practice Tests

RRB PREVIOUS YEAR SOLVED PAPERS 

Published by http://naukriexpress.blogspot.com    

Railway  Exam Solved Questions

1. The thread angle of Whitworth
thread form is
(A) 55° (B) 60°
(C) 90° (D)None of these
 

2. Which of the following processes
will produce the best surface finish ?
(A)Turning (B) Lapping
(C) Grinding (D)Filing
 

3. In the turning operation, RPM of
the spindle depends on
(A) Length of the job
(B) Diameter of the job
(C) Both of the above
(D)None of the above
 

4. The term BTU stands for
(A) Basic Thermal Unit
(B) British Thermal Unit
(C) Briler Temperature Unit
(D)None of these
 

5. Absolute pressure is equal to
(A)Gauge pressure
(B) Gauge pressure – Atmospheric
pressure
(C) Gauge Pressure + Atmospheric
pressure
(D)Atmospheric pressure
 

6. One ton refrigeration is equivalent
to
(A) 12,000 Btuh
(B) 10,000 Btuh
(C) 250 Btu per min
(D) 1,000 Btuh
 

7. Pyrometer is used to measure
(A)Intensity of light
(B) High Temperatures
(C)High Voltage
(D)Low Temperatures
 

8. For underground cables, the depth
of the trench is approximately
(A)30 cm (B) 60 cm
(C)200 cm (D)120 cm
 

9. During which test of the induction
motor, the reduced voltage is applied ?
(A)No load test
(B) Blocked rotor test
(C) Insulation test
(D)Resistance test
 

10. The range of a voltmeter can be
increased by connecting
(A)High resistance in series
(B) Low resistance in series
(C) High resistance in parallel
(D)Depends on the range of the
existing voltmeter
 

11. International ohm is defined as the
resistance of
(A)A column of mercury
(B) A cube of copper
(C) A cylinder of silver
(D)A wire of nichrome
 

12. The laminations of a transformer
are made from
(A)Copper
(B) Mild steel
(C) Nickel alloy steel
(D) Zinc-copper alloy