Discussion
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- Question
The increase in hardness due to cold working, is called
Options- A. age-hardening
- B. work-hardening
- C. induction hardening
- D. flame hardening
- Correct Answer
- work-hardening
- 1. Piercing is an operation of cutting
Options- A. a cylindrical hole in a sheet of metal by the punch and the die
- B. a hole (other than cylindrical) in a sheet of metal by the punch and the die
- C. a flat sheet to the desired shape
- D. a number of holes evenly spaced in a regular pattern on a sheet of metal Discuss
- 2. A basic shaft is one whose
Options- A. lower deviation is zero
- B. upper deviation is zero
- C. lower and upper deviations are zero
- D. none of these Discuss
- 3. In order to deliver molten metal from pouring basin to gate, a __________ is used.
Options- A. riser
- B. sprue
- C. core Discuss
- 4. V-block is used to
Options- A. check the trueness of flat surfaces
- B. locate centres of round rods
- C. check the surface roughness
- D. none of these Discuss
- 5. Scribing block is used to
Options- A. hold the round bars during marking
- B. check the trueness of flat surfaces
- C. locate the centres of round bars
- D. check the surface roughness Discuss
- 6. In permanent mould casting method
Options- A. molten metal is poured in a metallic mould, retained in the mould long enough for the outer skin to solidify and finally mould is turned over to remove molten metal still in molten condition
- B. molten metal is poured and allowed to solidify while the mould is revolving
- C. molten metal is forced into mould under high pressure
- D. none of the above Discuss
- 7. In back-hand welding, the angle between the welding rod and the work is __________ as compared to fore-hand welding.
Options- A. same
- B. less
- C. more Discuss
- 8. When a pattern is made in three parts, the top part, is known as a
Options- A. drag
- B. cheek
- C. cope
- D. none of these Discuss
- 9. Which of the following welding method uses a pool of molten metal?
Options- A. Carbon arc welding
- B. Submerged arc welding
- C. TIG arc welding
- D. MIG arc welding Discuss
- 10. In a gas welding of mild steel using an oxy-acetylene flame, the total amount of acetylene consumed is 10 litre. The oxygen consumption from the cylinder is
Options- A. 5 litre
- B. 10 litre
- C. 15 litre
- D. 20 litre Discuss
Workshop Technology problems
Search Results
Correct Answer: a hole (other than cylindrical) in a sheet of metal by the punch and the die
Correct Answer: upper deviation is zero
Correct Answer: sprue
Correct Answer: none of these
Correct Answer: locate the centres of round bars
Correct Answer: none of the above
Correct Answer: same
Correct Answer: cope
Correct Answer: Submerged arc welding
Correct Answer: 10 litre
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