1. Draft on pattern means
b) Allowance for machining
c) Locating pad
d) Compensate for stripping
e) Compensation for shrinkage
Ans.: d) Compensate for stripping
2. Slag inclusion in the casting is a
a) Surface defects
b) Internal defect
c) Crack
d) Notch
Ans.: a) Surface defects
3. Fettling is an operation performed
a) Before casting
b) After casting
c) During casting
d) After heat treatment
Ans.: b) After casting
4. Sprue in casting refers to
a) Gate
b) Runner
c) Riser
d) Vertical passage
Ans.: d) Vertical passage
5. Severe quenching can cause
a) Blow holes
b) Warping
c) Inclusions
d) Non of them
Ans.: b) Warping
6. Casting defects caused by the molten metal is
a) Blow holes
b) Swell
c) Scab
d) All of the above
Ans.: d) All of the above
7. Forming operation which does not involve rotation of work piece is
a) Spinning
b) Thread rolling
c) Ring rolling
d) Upsetting
Ans.: d) Upsetting
8. In hot working process
a) Poor surface finish is produced
b) Scale formed
c) Close tolerance is difficult to maintain
d) All of the above
Ans.: d) All of the above
9. Swaging is an operation of
a) Extrusion
b) Forging
c) Casting
d) Rolling
Ans.: b) Forging
10. Age hardening is related with
a) Stainless steel
b) Duralumin
c) Gun metal
d) Cast iron
Ans.: b) Duralumin
11. Foundry crucible is made of
a) Stainless steel
b) Mild steel
c) Lead
d) Graphite
Ans.: d) Graphite
12. A 1000 tonne press implies that
a) The weight of press is 1000 tonne
b) The press can handle works weighing up to 1000 tonne
c) It can exert pressure up to 1000 tonne
d) Its turn over in a day is 1000 tonne
Ans.: c) It can exert pressure up to 1000 tonne
13. The transistor is made of
a) Silver
b) Germanium
c) Copper
d) Cast iron
Ans.: b) Germanium
14. Pre heating is essential in welding of
a) High speed steel
b) German steel
c) Stainless steel
d) Cast iron
Ans.: a) High speed steel
15. Spring back phenomenon occurs in
a) Forging
b) Hot penning
c) Spinning
d) Bending
Ans.: d) Bending
16. Wire is made by
a) Drawing
b) Forging
c) Rolling
d) Casting
Ans.: a) Drawing
17. Greater forging capacity is achieved with
a) Mechanical press
b) Power hammer
c) Hydraulic press
d) Non of them
Ans.: c) Hydraulic press
18. Turbine rotor is made by
a) Rolling
b) Sand casting
c) Forging
d) Extrusion
Ans.: b) Sand casting
19. Which of the following welding process uses consumable electrodes
a) TIG
b) MIG
c) Thermit
d) Laser
Ans.: b) MIG
20. The phenomenon of weld decay occurs in
a) Cast iron
b) Brass
c) Bronze
d) Stainless steel
Ans.: d) Stainless steel
21. The crystal structure of alpha iron
a) BCC
b) FCC
c) HCP
d) Cubic
Ans.: a) BCC
22. The hardest known material is
a) Ceramic
b) High speed steel
c) Cemented carbide
d) Diamond
Ans.: d) Diamond
23. Which of the following is the most ductile material
a) Lead
b) Copper
c) Mild steel
d) Vanadium
Ans.: a) Lead
24. Brinell hardness tester uses a hardened steel ball of size
a) 1 mm
b) 5 mm
c) 10 mm
d) 15 mm
Ans.: c) 10 mm
25. Trimming process is associated with
a) Polishing of metals
b) Machining
c) Electroplating
d) Forging
Ans.: d) Forging
b) Allowance for machining
c) Locating pad
d) Compensate for stripping
e) Compensation for shrinkage
Ans.: d) Compensate for stripping
2. Slag inclusion in the casting is a
a) Surface defects
b) Internal defect
c) Crack
d) Notch
Ans.: a) Surface defects
3. Fettling is an operation performed
a) Before casting
b) After casting
c) During casting
d) After heat treatment
Ans.: b) After casting
4. Sprue in casting refers to
a) Gate
b) Runner
c) Riser
d) Vertical passage
Ans.: d) Vertical passage
5. Severe quenching can cause
a) Blow holes
b) Warping
c) Inclusions
d) Non of them
Ans.: b) Warping
6. Casting defects caused by the molten metal is
a) Blow holes
b) Swell
c) Scab
d) All of the above
Ans.: d) All of the above
7. Forming operation which does not involve rotation of work piece is
a) Spinning
b) Thread rolling
c) Ring rolling
d) Upsetting
Ans.: d) Upsetting
8. In hot working process
a) Poor surface finish is produced
b) Scale formed
c) Close tolerance is difficult to maintain
d) All of the above
Ans.: d) All of the above
9. Swaging is an operation of
a) Extrusion
b) Forging
c) Casting
d) Rolling
Ans.: b) Forging
10. Age hardening is related with
a) Stainless steel
b) Duralumin
c) Gun metal
d) Cast iron
Ans.: b) Duralumin
11. Foundry crucible is made of
a) Stainless steel
b) Mild steel
c) Lead
d) Graphite
Ans.: d) Graphite
12. A 1000 tonne press implies that
a) The weight of press is 1000 tonne
b) The press can handle works weighing up to 1000 tonne
c) It can exert pressure up to 1000 tonne
d) Its turn over in a day is 1000 tonne
Ans.: c) It can exert pressure up to 1000 tonne
13. The transistor is made of
a) Silver
b) Germanium
c) Copper
d) Cast iron
Ans.: b) Germanium
14. Pre heating is essential in welding of
a) High speed steel
b) German steel
c) Stainless steel
d) Cast iron
Ans.: a) High speed steel
15. Spring back phenomenon occurs in
a) Forging
b) Hot penning
c) Spinning
d) Bending
Ans.: d) Bending
16. Wire is made by
a) Drawing
b) Forging
c) Rolling
d) Casting
Ans.: a) Drawing
17. Greater forging capacity is achieved with
a) Mechanical press
b) Power hammer
c) Hydraulic press
d) Non of them
Ans.: c) Hydraulic press
18. Turbine rotor is made by
a) Rolling
b) Sand casting
c) Forging
d) Extrusion
Ans.: b) Sand casting
19. Which of the following welding process uses consumable electrodes
a) TIG
b) MIG
c) Thermit
d) Laser
Ans.: b) MIG
20. The phenomenon of weld decay occurs in
a) Cast iron
b) Brass
c) Bronze
d) Stainless steel
Ans.: d) Stainless steel
21. The crystal structure of alpha iron
a) BCC
b) FCC
c) HCP
d) Cubic
Ans.: a) BCC
22. The hardest known material is
a) Ceramic
b) High speed steel
c) Cemented carbide
d) Diamond
Ans.: d) Diamond
23. Which of the following is the most ductile material
a) Lead
b) Copper
c) Mild steel
d) Vanadium
Ans.: a) Lead
24. Brinell hardness tester uses a hardened steel ball of size
a) 1 mm
b) 5 mm
c) 10 mm
d) 15 mm
Ans.: c) 10 mm
25. Trimming process is associated with
a) Polishing of metals
b) Machining
c) Electroplating
d) Forging
Ans.: d) Forging
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