FITTER QUESTION 2nd year 4
31 What is the part marked as ‘x’ in lapping tool?
A Slit
B Bush
C Sleeve
D Groove
Correct Answer:- A Slit
32 What is the purpose of slit provided in the lapping tool?
A For clearance
B For expansion
C To retain abrasive
D To adjust the sleeve
Correct Answer:- B For expansion
33 What is the name of operation?
A Internal ring lapping
B External ring lapping
C Lapping internal cylinder
D Lapping large diameter
Correct Answer:- D Lapping large diameter
34 What type of abrasives are used in honing cast iron and non-ferrous materials?
A Diamond
B Boron carbide
C Silicon carbide
D Aluminium oxide
Correct Answer:- C Silicon carbide
35 Which method of surface hardening, the surface remains free from scales?
A Nitriding
B Case hardening
C Flame hardening
D Induction hardening
Correct Answer:- D Induction hardening
36 What is the process if the steel is heated above critical temperature and soaking it for sufficient time and cooling it very slowly within furnace?
A Annealing
B Hardening
C Tempering
D Normalising
Correct Answer:- A Annealing
37 What is the process to refine the structure of steel component?
A Tempering
B Annealing
C Hardening
D Normalising
Correct Answer:- D Normalising
38 Which method of surface hardening is done in a heated salt bath?
A Flame hardening
B Gas carburising
C Pack carburising
D Liquid carburising
Correct Answer:- D Liquid carburising
39 What is the name of part marked as X
A Taper shaft
B Splined shaft
C Serrated shaft
D Screw pitch gauge
Correct Answer:- C Serrated shaft
40 Which key has rectangular cross section is fit into keyway cut on both shaft and hub?
A Sunk key
B Feather key
C Flat saddle key
D Hollow saddle key
Correct Answer:- A Sunk key
41 Which key is useful for fitting on tapered shafts?
A Feather key
B Gib head key
C Woodruff key
D Flat saddle key
Correct Answer:- C Woodruff key
42 Where is circular taper key used?
A Light duty transmission
B Bi-directional rotation
C Lengthy shaft
D Tapered shaft
Correct Answer:- A Light duty transmission
43 How the plain bearings are kept in a position without allowing them to rotate along with the shaft?
A By clamps
B By bolt and nut
C By key or screws
D By locking device
Correct Answer:- C By key or screws
44 What is the name of key?
A Flat saddle key
B Taper sunk key
C Parallel sunk key
D Hallow saddle key
Correct Answer:- A Flat saddle key
45 What is the name of key?
A Sunk key
B Feather key
B Driver screw
C Self taping screw
D Thread cutting screw
Correct Answer:- B Driver screw
48 What is the advantage of lock washer?
A Provide increased bearing surface
B Prevent the damage to the surface
C Distribute even pressure on working surface
D Prevent bolt or nut from loosening under vibration
Correct Answer:- D Prevent bolt or nut from loosening under vibration
49 What is the name of screw driver?
A Offset screw driver
B Philips screw driver
C Standard screw driver
D Heavy duty screw driver
Correct Answer:- A Offset screw driver
50 What is the name of locking device?
A Tab washer
B Locking plate
C Lock washer
D Spring washer
Correct Answer:- D Spring washer
51 What is the advantage of using Gib headed key?
A Used for tapered fittings
B Can be withdrawn easily
C Provides unidirectional torque
D Good in high speed application
Correct Answer:- B Can be withdrawn easily
52 Which file is used for finishing sharp corners?
A Pillar file
B Riffler file
C Barrette file
D Warding file
Correct Answer:- C Barrette file
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