Workshop Technology problems
- 1. When filing soft metals, the file teeth are clogged with minute particles of metal. The file should be cleaned by
Options- A. washing it with water
- B. rubbing on wood
- C. washing it with dilute acid
- D. using file card Discuss
Correct Answer: using file card
- 2. The oxygen cylinder is usually painted with
Options- A. black colour
- B. white colour
- C. maroon colour
- D. yellow colour Discuss
Correct Answer: black colour
- 3. In fore-hand welding, the angle between the welding torch and the work is __________ as compared to back-hand welding.
Options- A. same
- B. less
- C. more Discuss
Correct Answer: less
- 4. The recrystallisation temperature of steel is
Options- A. 400° C
- B. 600° C
- C. 800° C
- D. none of these Discuss
Correct Answer: 800° C
- 5. Forming is the operation of removing metal to the desired shape from the edge of a plate.
Options- A. Correct
- B. Incorrect Discuss
Correct Answer: Incorrect
- 6. Seam welding is best adopted for metal thickness ranging from
Options- A. 0.025 to 3 mm
- B. 3 to 5 mm
- C. 5 to 8 mm
- D. 8 to 10 mm Discuss
Correct Answer: 0.025 to 3 mm
- 7. Cold working of metal increases
Options- A. tensile strength
- B. yield strength
- C. hardness
- D. all of these Discuss
Correct Answer: all of these
- 8. A hacksaw blade cuts on the
Options- A. forward stroke
- B. return stroke
- C. both forward and return strokes
- D. cutting depends upon the direction of force Discuss
Correct Answer: forward stroke
- 9. The surface to be machined is marked on the pattern by
Options- A. red colour
- B. yellow colour
- C. black colour
- D. blue colour Discuss
Correct Answer: red colour
- 10. The consumable electrode is used in
Options- A. carbon arc welding
- B. submerged arc welding
- C. TIG arc welding
- D. MIG arc welding Discuss
Correct Answer: MIG arc welding
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