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- Question
Two closely-coiled helical springs 'A' and 'B' of the same matenal, same number of turns and made from same wire are subjected to an axial load W. The mean diameter of spring 'A' is double the mean diameter of spring 'B'. The ratio of deflections in spring 'B' to spring 'A' will be
Options- A. 1/8
- B. 1/4
- C. 2
- D. 4
- Correct Answer
- 1/8
- 1. Seam weiding is a
Options- A. continuous spot welding process
- B. multi-spot welding process
- C. arc welding process
- D. process used for joining round bars Discuss
- 2. The tool material, for faster machining, should have
Options- A. wear resistance
- B. red hardness
- C. toughness
- D. all of these Discuss
- 3. The function of a carburettor is to control the amount and ratio of air-fuel mixture.
Options- A. True
- B. False Discuss
- 4. The ratio of static friction to dynamic friction is always
Options- A. equal to one
- B. less than one
- C. greater than one
- D. none of these Discuss
- 5. The most economical section of a trapezoidal channel is one which has hydraulic mean depth equal to
Options- A. 1/2 depth
- B. 1/2 breadth
- C. 1/2 sloping side
- D. 1/4 (depth + breadth) Discuss
- 6. The line of action of the force of buoyancy acts through the centre of gravity of the volume of the liquid displaced.
Options- A. True
- B. False Discuss
- 7. The internal flue tubes of a Lancashire boiler are reduced in diameter at the back to provide access to the lower part of the boiler.
Options- A. True
- B. False Discuss
- 8. If the speed of the engine is increased, the indicated power will
Options- A. increase
- B. decrease
- C. remain same Discuss
- 9. The compression ratio for petrol engines is
Options- A. 3 to 6
- B. 5 to 8
- C. 15 to 20
- D. 20 to 30 Discuss
- 10. The entropy of water at 0°C is assumed to be
Options- A. 1
- B. 0
- C. -1
- D. 10 Discuss
More questions
Correct Answer: continuous spot welding process
Correct Answer: all of these
Correct Answer: True
Correct Answer: greater than one
Correct Answer: 1/2 depth
Correct Answer: True
Correct Answer: True
Correct Answer: increase
Correct Answer: 5 to 8
Correct Answer: 0
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