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Workshop Technology
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Question
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
Correct Answer
melting pot is an integral part of the machine
Workshop Technology problems
Search Results
1. 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
Show Answer
Scratch Pad
Discuss
Correct Answer: TIG welding
2. In a centrifugal casting method, the impurities are collected in the centre of the casting.
Options
A. Yes
B. No
Show Answer
Scratch Pad
Discuss
Correct Answer: Yes
3. When a pattern is made in three parts, the bottom part is known as a cope.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: False
4. The chisel used for cutting key ways is
Options
A. flat chisel
B. cape chisel
C. round nose chisel
D. diamond pointed chisel
Show Answer
Scratch Pad
Discuss
Correct Answer: cape chisel
5. In submerged arc welding, an arc is produced between a
Options
A. carbon electrode and the work
B. metal electrode and the work
C. bare metal electrode and the work
D. two tungsten electrodes and the work
Show Answer
Scratch Pad
Discuss
Correct Answer: bare metal electrode and the work
6. Blanking and piercing operations can be performed simultaneously in a
Options
A. simple die
B. progressive die
C. compound die
D. combination die
Show Answer
Scratch Pad
Discuss
Correct Answer: compound die
7. 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
Show Answer
Scratch Pad
Discuss
Correct Answer: feed the molten metal to the casting in order to compensate for the shrinkage
8. 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
Show Answer
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Discuss
Correct Answer: two are working rolls and two are backing up rolls
9. 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
Show Answer
Scratch Pad
Discuss
Correct Answer: contact resistance
10. 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
Show Answer
Scratch Pad
Discuss
Correct Answer: Extrusion and rolling
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