Workshop Technology problems
- 1. Blanking and piercing operations can be performed simultaneously in a
Options- A. simple die
- B. progressive die
- C. compound die
- D. combination die Discuss
Correct Answer: compound die
- 2. The purpose of a riser is to
Options- A. deliver molten metal into the mould cavity
- B. act as a reservoir for the molten metal
- C. feed the molten metal to the casting in order to compensate for the shrinkage
- D. deliver the molten metal from pouring basin to gate Discuss
Correct Answer: feed the molten metal to the casting in order to compensate for the shrinkage
- 3. In a four high rolling mill, there are four rolls out of which
Options- A. one is working roll and three are backing up rolls
- B. two are working rolls and two are backing up rolls
- C. three are working rolls and one is backing up roll
- D. all of the four are working rolls Discuss
Correct Answer: two are working rolls and two are backing up rolls
- 4. In arc welding, the electric arc is produced between the work and the electrode by
Options- A. voltage
- B. flow of current
- C. contact resistance
- D. all of these Discuss
Correct Answer: contact resistance
- 5. Which of the following methods can be used for manufacturing 2 metre long seamless metallic tubes?
Options- A. Drawing
- B. Extrusion
- C. Rolling
- D. Extrusion and rolling Discuss
Correct Answer: Extrusion and rolling
- 6. The fullers are used
Options- A. for finishing flat surfaces
- B. for necking down a piece of work
- C. for punching a hole
- D. to finish the punched hole Discuss
Correct Answer: for necking down a piece of work
- 7. The cross-section of a chisel is usually
Options- A. rectangular
- B. square
- C. hexagonal
- D. octagonal Discuss
Correct Answer: octagonal
- 8. A plug gauge is used to check the diameter of shafts and studs.
Options- A. Correct
- B. Incorrect Discuss
Correct Answer: Incorrect
- 9. The property of sand due to which it evolves a great amount of steam and other gases is called
Options- A. collapsibility
- B. permeability
- C. cohesiveness
- D. adhesiveness Discuss
Correct Answer: permeability
- 10. In back-hand welding, the angle between the welding torch and the work is kept as
Options- A. 30°-40°
- B. 40°-50°
- C. 50°-60°
- D. 60°-70° Discuss
Correct Answer: 40°-50°
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