Materials Science and Manufacturing Engineering Miscellaneous
- Match the following
A. Sand casting
B. Plaster mould casting
C. Shell mould casting
D. Investment casting
1. Symmetrical and circular shapes only
2. Parts have hardened skins and soft interior
3. Minimum post casting process
4. Parts have soft skin and hard interior
5. Parts have a tendency to warp
6. Suitable only for nonferrous metals
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A – 5, B – 6, C – 2, D – 3
Correct Option: B
A – 5, B – 6, C – 2, D – 3
- Only 4 pairs can be matched Casting process
A. Investment casting
B. Die casting
C. Centrifugal casting
D. Drop forging
E. Extrusion
F. Shell moulding
Product
1. Turbine rotors
2. Turbine blades
3. Connecting rods
4. Galvanized iron pipes
5. Cast iron pipes
6. Carburetor body
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A – 2, B – 3, C – 2, D – 5
Correct Option: B
A – 2, B – 3, C – 2, D – 5
- Centrifugally casted products have
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Due to faster cooling rate of casting
Correct Option: B
Due to faster cooling rate of casting
- Casting process
A. Slush casting
B. Shell moulding
C. Dry sand moulding
D. Centrifugal casting
Product
1. Turbine blade
2. Machine tool bed
3. Cylindrical block
4. Hollow castings like lamp shades
5. Rain water pipes
6. Cast iron shoe brake
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A – 4, B – 3, C –2, D – 5
Correct Option: C
A – 4, B – 3, C –2, D – 5
- In a green sand moulding process, uniform ramming leads to
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Sand will go to last corners of casting
Correct Option: B
Sand will go to last corners of casting