Discussion
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- Question
The low pressure acetylene is produced at the welding site by the chemical reaction between water and calcium carbonate.
Options- A. Correct
- B. Incorrect
- Correct Answer
- Incorrect
- 1. In a hot chamber die casting machine
Options- A. ferrous alloys with low melting temperature are casted
- B. ferrous alloys with high melting temperature are casted
- C. non-ferrous alloys with low melting temperature are casted
- D. non-ferrous alloys with high melting temperature are casted Discuss
- 2. In welding copper alloys with TIG arc welding
Options- A. direct current with straight polarity is used
- B. direct current with reversed polarity is used
- C. alternating current is used
- D. any one of these Discuss
- 3. The instrument which has all the features of try-square, bevel protractor, rule and scriber, is
Options- A. outside micrometer
- B. inside micrometer
- C. depth gauge micrometer
- D. combination set Discuss
- 4. The algebraic difference between the minimum limit and the basic size is called
Options- A. actual deviation
- B. upper deviation
- C. lower deviation
- D. fundamental deviation Discuss
- 5. A pattern maker's shrinkage rule considers
Options- A. all pattern allowances
- B. only shrinkage allowance
- C. all materials to be cast
- D. all materials of the pattern Discuss
- 6. When a hole or cavity to be cored is not in line with the parting surface, then a __________ is used.
Options- A. horizontal core
- B. vertical core
- C. drop core
- D. balanced core Discuss
- 7. The temperature at which the new grains are formed in the metal is called
Options- A. lower critical temperature
- B. upper critical temperature
- C. eutectic temperature
- D. recrystallisation temperature Discuss
- 8. 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 Discuss
- 9. The chisel used for cutting key ways is
Options- A. flat chisel
- B. cape chisel
- C. round nose chisel
- D. diamond pointed chisel Discuss
- 10. When a pattern is made in three parts, the bottom part is known as a cope.
Options- A. True
- B. False Discuss
Workshop Technology problems
Search Results
Correct Answer: non-ferrous alloys with low melting temperature are casted
Correct Answer: direct current with straight polarity is used
Correct Answer: combination set
Correct Answer: lower deviation
Correct Answer: only shrinkage allowance
Correct Answer: drop core
Correct Answer: recrystallisation temperature
Correct Answer: bare metal electrode and the work
Correct Answer: cape chisel
Correct Answer: False
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