Workshop Technology problems
- 1. In a die casting method, the molten metal is forced into mould under high pressure.
Options- A. Correct
- B. Incorrect Discuss
Correct Answer: Correct
- 2. 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
Correct Answer: all of these
- 3. The cold chisels are made by
Options- A. drawing
- B. rolling
- C. piercing
- D. forging Discuss
Correct Answer: forging
- 4. 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
Correct Answer: process of coating zinc by hot dipping
- 5. 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
Correct Answer: ±0.2 mm
- 6. In average work, the tolerance produced by investment casting method is
Options- A. ±0.05 mm
- B. +0.2 mm
- C. +05 mm
- D. +1 mm Discuss
Correct Answer: ±0.05 mm
- 7. A pattern maker's shrinkage rule considers
Options- A. all pattern allowances
- B. only shrinkage allowance
- C. all materials to be cast
- D. all materials of the pattern Discuss
Correct Answer: only shrinkage allowance
- 8. The algebraic difference between the minimum limit and the basic size is called
Options- A. actual deviation
- B. upper deviation
- C. lower deviation
- D. fundamental deviation Discuss
Correct Answer: lower deviation
- 9. The instrument which has all the features of try-square, bevel protractor, rule and scriber, is
Options- A. outside micrometer
- B. inside micrometer
- C. depth gauge micrometer
- D. combination set Discuss
Correct Answer: combination set
- 10. In welding copper alloys with TIG arc welding
Options- A. direct current with straight polarity is used
- B. direct current with reversed polarity is used
- C. alternating current is used
- D. any one of these Discuss
Correct Answer: direct current with straight polarity is used
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