Foundry Metallurgy MCQ Questions and Answers | Metallurgical Engineering Page-2 section-1

11.
Match the requirement from Group 1 with the suitable casting process from Group 2.

Group 1 Group 2

P. Good surface finish 1. Slush casting

Q. Expandable mould 2. Pressure die casting

R. Heavy casting 3. Investment casting

S. Hollow ornamental casting 4. Sand casting

A. P-2, Q-3, R-4, S-1

B. P-4, Q-2, R-4, S-1

C. P-4, Q-3, R-2, S-4

D. P-2, Q-1, R-3, S-4

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12.
. . . . . . . . process removes fines and foreign matter, partly clay coating from the sand and partially removes the carbonaceous and organic materials from sand grains.

A. Dry reclamation

B. Thermal reclamation

C. Wet reclamation

D. Combined wet reclamation plus thermal reclamation

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13.
Sprue in casting refers to . . . . . . . .

A. Gate

B. Runner

C. Riser

D. Vertical passage

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14.
The shrinkage allowance for 6mm section malleable cast iron is . . . . . . . . mm.

A. 10.4

B. 26.5

C. 17

D. 12.5

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15.
If two parts of a mould are not joined properly, the casting may have the following defect.

A. Scab

B. Blowhole

C. Gas porosity

D. Flash

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16.
The solidification time for a cube casting having 5 cms side is 10 minutes. Under similar condition of heat transfer, the solidification time, inminutes, for a cube casting having 10 cm side will be

A. 10

B. 20

C. 40

D. 80

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17.
In a casting, shrinkage occurs

A. only after transformation from liquid to solid

B. only during transformation from liquid to solid

C. before, during and after transformation from liquid to solid

D. only when the metal is in the liquid state

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18.
A jet engine turbine blade is normally manufactured by

A. forging

B. shell moulding

C. investment casting

D. pressure die casting

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19.
The casting processes that require expendable moulds are
P. Investment casting
Q. Low pressure casting
R. Shell moulding
S. Slush casting

A. P, Q

B. Q, R

C. R, S

D. P, R

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20.
Riser in a casting compensates for

A. liquid state shrinkage

B. solidification shrinkage

C. liquid state shrinkage, solidification shrinkage and solid state shrinkage

D. liquid state shrinkage and solidification shrinkage

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Group 1	Group 2
P. Good surface finish	1. Slush casting
Q. Expandable mould	2. Pressure die casting
R. Heavy casting	3. Investment casting
S. Hollow ornamental casting	4. Sand casting

Foundry Metallurgy MCQ Questions and Answers | Metallurgical Engineering

11. Match the requirement from Group 1 with the suitable casting process from Group 2. Group 1 Group 2 P. Good surface finish 1. Slush casting Q. Expandable mould 2. Pressure die casting R. Heavy casting 3. Investment casting S. Hollow ornamental casting 4. Sand casting

Answer & Solution

12. . . . . . . . . process removes fines and foreign matter, partly clay coating from the sand and partially removes the carbonaceous and organic materials from sand grains.

Answer & Solution

13. Sprue in casting refers to . . . . . . . .

Answer & Solution

14. The shrinkage allowance for 6mm section malleable cast iron is . . . . . . . . mm.

Answer & Solution

15. If two parts of a mould are not joined properly, the casting may have the following defect.

Answer & Solution

16. The solidification time for a cube casting having 5 cms side is 10 minutes. Under similar condition of heat transfer, the solidification time, inminutes, for a cube casting having 10 cm side will be

Answer & Solution

17. In a casting, shrinkage occurs

Answer & Solution

18. A jet engine turbine blade is normally manufactured by

Answer & Solution

19. The casting processes that require expendable moulds are P. Investment casting Q. Low pressure casting R. Shell moulding S. Slush casting

Answer & Solution

20. Riser in a casting compensates for

Answer & Solution

11.
Match the requirement from Group 1 with the suitable casting process from Group 2.

Group 1 Group 2

P. Good surface finish 1. Slush casting

Q. Expandable mould 2. Pressure die casting

R. Heavy casting 3. Investment casting

S. Hollow ornamental casting 4. Sand casting

12.
. . . . . . . . process removes fines and foreign matter, partly clay coating from the sand and partially removes the carbonaceous and organic materials from sand grains.

13.
Sprue in casting refers to . . . . . . . .

14.
The shrinkage allowance for 6mm section malleable cast iron is . . . . . . . . mm.

15.
If two parts of a mould are not joined properly, the casting may have the following defect.

16.
The solidification time for a cube casting having 5 cms side is 10 minutes. Under similar condition of heat transfer, the solidification time, inminutes, for a cube casting having 10 cm side will be

17.
In a casting, shrinkage occurs

18.
A jet engine turbine blade is normally manufactured by

19.
The casting processes that require expendable moulds are
P. Investment casting
Q. Low pressure casting
R. Shell moulding
S. Slush casting

20.
Riser in a casting compensates for