Question and General Studies, Railway Recruitment Boards, Model Question paper.

Questions and general studies.

Technical Awareness :

1. Main and connecting rod bearings require replacement when

(A) The bearings metal has been caked
(B) The clearance has increased due to being worn out during long use
(c) The oil pressure has become low
(D) All of these

2. Supercharger can be filled with

(A) Diesel engine only
(B) Petrol engine only
(C) Both A and B
(D) Either A or B

3. Bearing clearance can be checked by
(A) feeler gauge
(B) Micrometer
(C) Vernier calipers
(D) Screw pitch gauge

4. Boiling point of water in Fahrenheit scale is
(A) 80 deg.
(B) 100 deg.
(C) 112 deg.
(D) 200 deg.

5. Diesel engines are designed to operate on

(A) 4-Stroke principle only
(B) 2-Stroke principle only
(C) Both A and B
(D) None of these

6. A file is specified by

(A) Length and Shape
(B) Nature of cut
(C) Roughness
(D) All of these

7. The instrument is used to measure on angle accurately is

(A) Slide caliper
(B) Vernier bevel protractor
(C) Screw gauge
(D) Vernier caliper

8. From Carbon with Silicon ,Phosphorous and Sulphur make an allay of

(A) Cast Iron
(B) Steel
(C) Otto cycle
(D) All of these

9. The cycle on which the high speed compression engines work is

(A) Diesel cycle
(B) Dual combustion
(C) Otto cycle
(D) All of these

10. A diamond-pointed chisel is used for cutting

(A) Flat Surface
(B) Key ways
(C) Grooves
(D) V-shaped grooves

11. Gear ratio for cutting thread in lathe machine depends upon its

(A) Pitch and lead screw
(B) Length and lead screw
(C) Both A and B
(D) Either A or B

12. The amount of variation permitted in the size of a part is called

(A) Allowance
(B) Tolerance
(C) Both A and B
(D) Neither A nor B

13. V-block is used

(A) To check roughness of the surface
(B) To check the trueness of flat surface
(C) To locate centers of round bars
(D) None of these

14. Smallest dimension which can be measured by a common micrometer is

(A) 0.1 mm
(B) 0.01 mm
(C) 0.001 mm
(D) 0.0001mm

15. Plug Gauge is used to check

(A) Internal diameters
(B) External diameters
(C) Accuracy of holes
(D) All of these

16. The insulation between commutator segments of a d.c. machine is usually

(A) Paper
(B) Rubber
(C) Mica
(D) Wood

17. A hem is a

(A) Joint made by fastening two edges together
(B) Border or an edge made by folding a sheet of metal
(C) Joint made by welding two edges together
(D) None of these

18. A snip is used to cut metals with a thickness of

(A) 20 gauge
(B) 10 gauge
(C) 16 gauge
(D) None of these

19. As per the provisions of I.E rules, the limit of low voltage is

(A) Not exceeding 230 v
(B) Not exceeding 220 v
(C) Not exceeding 250 v
(D) Not exceeding 440 v

20. Which one of the following parts is not associated with a transformer

(A) Conservator
(B) Breather
(C) Buchholz relay
(D) Interpol

21. Function of a rake angel on the flute of a tap is used to reduce the required

(A) Torque
(B) Speed
(C) Length
(D) None of these

22. Cutting fluids are used to

(A) Cool the tool and work piece
(B) Lubricate and reduce friction
(C) Improve surface finish
(D) All of these

23. Capstan lathe is commonly known as

(A) Center lathe
(B) Production lathe
(C) Universal lathe
(D) Engine lathe