Discussion
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- Question
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
- Correct Answer
- Submerged arc welding
- 1. 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
- 2. 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
- 3. 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
- 4. The increase in hardness due to cold working, is called
Options- A. age-hardening
- B. work-hardening
- C. induction hardening
- D. flame hardening Discuss
- 5. 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
- 6. 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
- 7. The operation of cutting of a flat sheet to the desired shape is called
Options- A. shearing
- B. piercing
- C. punching
- D. blanking Discuss
- 8. The mode of deformation of the metal during spinning is
Options- A. bending
- B. stretching
- C. rolling and stretching
- D. bending and stretching Discuss
- 9. In TIG arc welding, the welding zone is shielded by an atmosphere of
Options- A. helium gas
- B. argon gas
- C. either (a) or (b)
- D. none of these Discuss
- 10. Cold working distorts grain structure and does not provide an appreciable reduction in size.
Options- A. Correct
- B. Incorrect Discuss
Workshop Technology problems
Search Results
Correct Answer: cope
Correct Answer: same
Correct Answer: none of the above
Correct Answer: work-hardening
Correct Answer: a hole (other than cylindrical) in a sheet of metal by the punch and the die
Correct Answer: 10 litre
Correct Answer: shearing
Correct Answer: bending and stretching
Correct Answer: either (a) or (b)
Correct Answer: Correct
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