Discussion
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- Question
Thread rolling is restricted to
Options- A. ferrous materials
- B. ductile materials
- C. hard materials
- D. none of these
- Correct Answer
- ductile materials
- 1. The temperature of oxy-hydrogen flame is __________ oxy-acetylene flame.
Options- A. same as
- B. less than
- C. more than Discuss
- 2. In a centrifugal casting method
Options- A. core is made of sand
- B. core is made of ferrous metal
- C. core is made of non-ferrous metal
- D. no core is used Discuss
- 3. In a bilateral system of tolerance, the tolerance is allowed on
Options- A. one side of the actual size
- B. one side of the nominal size
- C. both sides of the actual size
- D. both sides of the nominal size Discuss
- 4. The centrifugal casting method, is used for casting articles of
Options- A. symmetrical shape about vertical axis
- B. symmetrical shape about horizontal axis
- C. irregular shape
- D. non-ferrous metal only Discuss
- 5. A taper provided on the pattern for its easy and clean withdrawl from the mould is known as
Options- A. machining allowance
- B. draft allowance
- C. shrinkage allowance
- D. distortion allowance Discuss
- 6. In a die casting method, the molten metal is forced into mould under high pressure.
Options- A. Correct
- B. Incorrect Discuss
- 7. The machining allowance provided on patterns depends upon
Options- A. type of casting metal
- B. size and shape of casting
- C. method of casting used
- D. all of these Discuss
- 8. The cold chisels are made by
Options- A. drawing
- B. rolling
- C. piercing
- D. forging Discuss
- 9. Galvanising is a
Options- A. zinc diffusion process
- B. process of coating zinc by hot dipping
- C. process used for making thin phosphate coating on steel
- D. none of the above Discuss
- 10. The tolerance produced by shell moulding process of casting is
Options- A. +0.05 mm
- B. ±0.2 mm
- C. +0.5 mm
- D. ±1 mm Discuss
Workshop Technology problems
Search Results
Correct Answer: less than
Correct Answer: no core is used
Correct Answer: both sides of the nominal size
Correct Answer: symmetrical shape about horizontal axis
Correct Answer: draft allowance
Correct Answer: Correct
Correct Answer: all of these
Correct Answer: forging
Correct Answer: process of coating zinc by hot dipping
Correct Answer: ±0.2 mm
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