Workshop Technology problems
- 1. In spot welding, the spacing between two spot weld should not be less than
Options- A. d
- B. 1.5 d
- C. 3 d
- D. 6 d Discuss
Correct Answer: 3 d
- 2. When the weld is made from left to right, it is known as back-hand welding.
Options- A. Agree
- B. Disagree Discuss
Correct Answer: Agree
- 3. The electrode tip diameter (d) in spot welding should be equal to (where t = Thickness of plate to be welded)
Options- A. t
- B. 1.5 t
- C. 3 t
- D. 6 t Discuss
Correct Answer: 6 t
- 4. If the sand is too fine, its permeability will be high.
Options- A. True
- B. False Discuss
Correct Answer: False
- 5. The cold working of metals is carried out
Options- A. at the recrystallisation temperature
- B. below the recrystallisation temperature
- C. above the recrystallisation temperature
- D. at any temperature Discuss
Correct Answer: below the recrystallisation temperature
- 6. The current in electric resistance welding can be regulated by
Options- A. varying the input supply
- B. changing the primary turns of the transformer
- C. changing the secondary turns of the transformer
- D. any one of the above Discuss
Correct Answer: changing the primary turns of the transformer
- 7. Cold working requires much higher pressure that hot working.
Options- A. Correct
- B. Incorrect Discuss
Correct Answer: Correct
- 8. An oxidising process used for aluminium and magnesium articles is called
Options- A. galvanising
- B. anodising
- C. parkerising
- D. sheradising Discuss
Correct Answer: anodising
- 9. The operation of straightening a curved sheet metal, is known as
Options- A. drawing
- B. squeezing
- C. coining
- D. planishing Discuss
Correct Answer: planishing
- 10. In a __________ , both cutting and non-cutting operations are performed at one station of the press in every stroke of the ram.
Options- A. simple die
- B. progressive die
- C. combination die
- D. compound die Discuss
Correct Answer: combination die
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