Discussion
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- Question
The efficiency of jet propulsion for a ship with inlet orifices at right angles to the direction of motion of ship, will be maximum when the relative velocity of the jet and ship is equal to twice the velocity of the ship.
Options- A. Yes
- B. No
- Correct Answer
- Yes
- 1. German silver contains
Options- A. 1% silver
- B. 2% silver
- C. 5% silver
- D. no silver Discuss
- 2. The taper on the lathe spindle is
Options- A. 1 in 10
- B. 1 in 15
- C. 1 in 20
- D. 1 in 30 Discuss
- 3. In twist fluted drills, chips do not move out automatically.
Options- A. Correct
- B. Incorrect Discuss
- 4. Petrol is distilled at
Options- A. 65° to 220°C
- B. 220° to 345°C
- C. 345° to 470°C
- D. 470° to 550°C Discuss
- 5. Laminar flow __________ place at very low velocities.
Options- A. takes
- B. does not take Discuss
- 6. An overhanging beam must overhang on both sides.
Options- A. Correct
- B. Incorrect Discuss
- 7. The path of the projectile is a parabola.
Options- A. True
- B. False Discuss
- 8. Nichrome contains more iron than Inconel.
Options- A. Agree
- B. Disagree Discuss
- 9. A moving mandrel is used in
Options- A. wiredrawing
- B. tube drawing
- C. metal cutting
- D. forging Discuss
- 10. Which of the following is an amorphous material?
Options- A. Mica
- B. Silver
- C. Lead
- D. Glass Discuss
More questions
Correct Answer: no silver
Correct Answer: 1 in 20
Correct Answer: Incorrect
Correct Answer: 65° to 220°C
Correct Answer: takes
Correct Answer: Correct
Correct Answer: True
Correct Answer: Agree
Correct Answer: tube drawing
Correct Answer: Glass
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