Discussion
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- Question
An oxidising process used for aluminium and magnesium articles is called
Options- A. galvanising
- B. anodising
- C. parkerising
- D. sheradising
- Correct Answer
- anodising
- 1. Cold working requires much higher pressure that hot working.
Options- A. Correct
- B. Incorrect Discuss
- 2. 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
- 3. 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
- 4. If the sand is too fine, its permeability will be high.
Options- A. True
- B. False Discuss
- 5. 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
- 6. The operation of straightening a curved sheet metal, is known as
Options- A. drawing
- B. squeezing
- C. coining
- D. planishing Discuss
- 7. 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
- 8. The welding set up is said to have reversed polarity when the work is connected to the negative terminal and the electrode holder to the positive terminal.
Options- A. Agree
- B. Disagree Discuss
- 9. Most of the oxy-acetylene welding is done with
Options- A. neutral flame
- B. oxidising flame
- C. carburising flame
- D. all of these Discuss
- 10. In a compound die
Options- A. only one operation is performed at each stroke of the ram
- B. two or more operations are performed simultaneously at the single stroke of the ram
- C. two or more cutting operations are performed at one station of the press in every stroke of the ram
- D. both cutting and non-cutting operations are performed at one station of the press in every stroke of the ram Discuss
Workshop Technology problems
Search Results
Correct Answer: Correct
Correct Answer: changing the primary turns of the transformer
Correct Answer: below the recrystallisation temperature
Correct Answer: False
Correct Answer: 6 t
Correct Answer: planishing
Correct Answer: combination die
Correct Answer: Agree
Correct Answer: neutral flame
Correct Answer: two or more cutting operations are performed at one station of the press in every stroke of the ram
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