Discussion
Home ‣ Mechanical Engineering ‣ Workshop Technology Comments
- Question
Lancing is the operation of
Options- A. cutting a sheet of metal in a straight line along the length
- B. removal of metal to the desired shape from the edge of a plate
- C. cutting a sheet of metal through part of its length and then bending the cut portion
- D. bending a sheet of metal along a curved axis
- Correct Answer
- cutting a sheet of metal through part of its length and then bending the cut portion
- 1. Carburising flame is used to weld
Options- A. steel, cast iron, copper, aluminium etc
- B. brass and bronze
- C. hard surfacing materials such as stellite
- D. all of these Discuss
- 2. In bending operation, the metal takes the shape of a punch.
Options- A. Yes
- B. No Discuss
- 3. Scab is a casting defect which occurs as sand patches on the upper surface of a casting.
Options- A. True
- B. False Discuss
- 4. Aluminium is the best material for making patterns because it is
Options- A. light in weight
- B. easy to work
- C. corrosion resistant
- D. all of these Discuss
- 5. When a pattern is made in three parts, the __________ is known as a drag.
Options- A. bottom part
- B. middle part
- C. top part Discuss
- 6. For welding plates of thickness more than 12.5 mm, its edges
Options- A. do not require bevelling
- B. should be bevelled to a single-V or U-groove
- C. should have a double-V or U-groove on one side
- D. should have a double-V or U-groove on both sides Discuss
- 7. A pouring basin acts as a reservoir for the molten metal.
Options- A. Agree
- B. Disagree Discuss
- 8. In a cold chamber die casting machine, only non-ferrous alloys with __________ are casted.
Options- A. low melting temperature
- B. high melting temperature Discuss
- 9. In electric resistance welding, voltage required for heating is
Options- A. 1 to 5 volts
- B. 6 to 10 volts
- C. 11 to 20 volts
- D. 50 to 100 volts Discuss
- 10. Cores are used to
Options- A. form internal cavities in the casting
- B. improve mould surface
- C. form a part of a green sand mould
- D. all of these Discuss
Workshop Technology problems
Search Results
Correct Answer: hard surfacing materials such as stellite
Correct Answer: Yes
Correct Answer: True
Correct Answer: all of these
Correct Answer: bottom part
Correct Answer: should have a double-V or U-groove on both sides
Correct Answer: Agree
Correct Answer: high melting temperature
Correct Answer: 6 to 10 volts
Correct Answer: all of these
Comments
There are no comments.More in Mechanical Engineering:
Programming
Copyright ©CuriousTab. All rights reserved.