Discussion
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- Question
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
- Correct Answer
- feed the molten metal to the casting in order to compensate for the shrinkage
- 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
- 2. In a hot chamber die casting machine
Options- A. melting pot is separate from the machine
- B. melting pot is an integral part of the machine
- C. melting pot may have any location
- D. high temperature and pressure is used Discuss
- 3. Which of the following welding process uses non-consumable electrodes?
Options- A. TIG welding
- B. MIG welding
- C. Manual arc welding
- D. Submerged arc welding Discuss
- 4. In a centrifugal casting method, the impurities are collected in the centre of the casting.
Options- A. Yes
- B. No Discuss
- 5. When a pattern is made in three parts, the bottom part is known as a cope.
Options- A. True
- B. False Discuss
- 6. 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
- 7. 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
- 8. 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
- 9. 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
- 10. The cross-section of a chisel is usually
Options- A. rectangular
- B. square
- C. hexagonal
- D. octagonal Discuss
Workshop Technology problems
Search Results
Correct Answer: compound die
Correct Answer: melting pot is an integral part of the machine
Correct Answer: TIG welding
Correct Answer: Yes
Correct Answer: False
Correct Answer: two are working rolls and two are backing up rolls
Correct Answer: contact resistance
Correct Answer: Extrusion and rolling
Correct Answer: for necking down a piece of work
Correct Answer: octagonal
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