Discussion
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- Question
The directional solidification in casting can be improved by using
Options- A. chills and chaplets
- B. chills and padding
- C. chaplets and padding
- D. chills, chaplets and padding
- Correct Answer
- chills and padding
- 1. Spot welding is used for welding
Options- A. lap joints in plates having 0.025 mm to 1.25 mm thickness
- B. lap joints in plates having thickness above 3 mm
- C. butt joints in plates having 0.025 mm to 1.25 mm thickness
- D. butt joints in plates having thickness above 3 mm Discuss
- 2. A jolt machine is used to
Options- A. ram the sand harder at the pattern face with decreasing hardness towards the back of the mould
- B. ram the sand harder at the back of the mould and softer on the pattern face
- C. produce uniform sand hardness throughout the mould
- D. produce uniform packing of sand in the mould Discuss
- 3. During hot working of metals
Options- A. poor surface finish is produced
- B. scale is formed on the metal surface
- C. close tolerances can not be maintained
- D. all of these Discuss
- 4. The drawing down is a process of __________ the cross-section of a bar.
Options- A. increasing
- B. reducing Discuss
- 5. Which of the following statement is wrong?
Options- A. The mortise gauge has two scribing pins.
- B. The gouges are chisels with a hollow shaped blade.
- C. An auger is a planing tool
- D. all of these Discuss
- 6. In tungsten-inert gas arc welding, a __________ electrode is used.
Options- A. consumable
- B. non-consumable Discuss
- 7. The minimum size of a billet is 10 cm x 10 cm.
Options- A. Agree
- B. Disagree Discuss
- 8. The cold chisels are made from
Options- A. cast iron
- B. mild steel
- C. high speed steel
- D. cast tool steel Discuss
- 9. The casting method adopted for ornaments and toys of non-ferrous alloys, is
Options- A. permanent mould casting
- B. slush casting
- C. die casting
- D. centrifugal casting Discuss
- 10. In welding magnesium with TIG arc welding, direct current with __________ is used.
Options- A. straight polarity
- B. reversed polarity Discuss
Workshop Technology problems
Search Results
Correct Answer: lap joints in plates having 0.025 mm to 1.25 mm thickness
Correct Answer: ram the sand harder at the pattern face with decreasing hardness towards the back of the mould
Correct Answer: all of these
Correct Answer: reducing
Correct Answer: An auger is a planing tool
Correct Answer: non-consumable
Correct Answer: Disagree
Correct Answer: cast tool steel
Correct Answer: slush casting
Correct Answer: reversed polarity
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