ISRO PREVIOUS YEAR PAPER, TECHNICIAN-B (FITTER)

ISRO PREVIOUS YEAR PAPER

TECHNICIAN-B (FITTER) 

ISRO SATELLITE CENTER, BENGALURU

Held on 20.11.2016

1 . Which is not the part of file – a) Sholder b) Heel  c) Ferrul  d) Barrel

2 .The file used for filing leather is – a) Single cut file b) Double cut file c) Rasp cut d) Curved cut

3. One micron = a) 0.001 b) 0.0001 c) 0.01 d) 0.00001

4 . What is the point angle of prick punch which is used for making light punch marks  -

a)      45° b) 100° c) 75° d)30°

5.  The engineer’s hammer is specified by its – a) Volume b) Length of handle c) Weight d) Material

6. If the strength of material to be drilled is high the drill speed should be – a) High b) Low

c) Speed will not depend on strength  d) none of these

7. Calculate the spindle RPM for drilling speed of 44 m/min and diameter of drill 20mm –

a) 350 b) 1400 c) 500 d) 700

8. What is the coolant used for machining cast iron – a) Soluble oil b) Chemical Solution 

c) Mineral oil d) No coolant

9.  In a vernier caliper 39 main scale divisions are divided into 40 equal point on the vernier scale. Then what is its least count in mm – a) 0.02 b) 0.01 c) 0.025 d) 0.03

10. As per the India standard system a drill bit is designated as 9.5-H-IS101-HS is this the number 9.5 stands for – a) Rake angle B) Drill bit length c) Spindle diameter  d) Drill diameter

11. The angle 60° 45’ = a) 60.75° b) 60.5 °c) 60.25° d) 60.6°

12. The diameter of the thread, at which the thread thickness equal to half of the pitch is called –

a) Major diameter b) Pitch diameter c) Minor diameter d) Shank diameter

13. the least count of vernier bevel protractor is – a) 10’ b) 1’ c) 5’ d) 2’

14. In a Screw thread , the top surface joining two adjacent sides of thread is called – a) Root B) Flank c) Creast d) Throat

15) What is the blank size for preparing a bolt of M12X1.5 – a) 11.85mm b) 12.15mm

c) 11.5mm d) 12.3mm

16. Which vice is used for holding rivets, keys – a) Pipe vice b) Hand vice C) Pin vice d) Bench vice

17. A single tool which performs the combined operation of drilling and counter sinking is called – a) Center drill b) Counter sink c) Counter bore d) tap

18. In a tolerance system as per the below figure, the dimension ‘x’ represents ---

a)Maximum limit of size b) Minimum limit of size c) Lower deviation d) Upper deviation

19. In a hole and shaft tolerance system. S,all letter indicates fundamental deviation of – a) Hole b) Shaft

c) Both hole and shaft d) None of these

20. If tolerance of hole and shaft represented as shown in below figure, then this fit is called –

a)Clearance b)Interference c)Transition d)None of this

ANSWER KEY

1.D  2.C  3.B  4.D  5.C  6.B  7.D  8.D  9.C  10.D  11.A  12.B  13.C  14.C  15.A  16.B  17.A  18.C 1 9.B  20.C