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- Question
The discharge through a large rectangular orifice is given by (where H1 = Height of the liquid above the top of the orifice, H2 = Height of the liquid above the bottom of the orifice, b = Breadth of the orifice, and Cd = Coefficient of discharge)
Options- A. Q =
Cd x b2g(H2 - H1) - B. Q = Cd x b2g(H21/2 - H11/2)
- C. Q = Cd x b2g(H23/2 - H13/2)
- D. Q = Cd x b2g(H22 - H12)
- Correct Answer
- Q = Cd x b2g(H23/2 - H13/2)
- 1. 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
- 2. Laminar flow __________ place at very low velocities.
Options- A. takes
- B. does not take Discuss
- 3. An overhanging beam must overhang on both sides.
Options- A. Correct
- B. Incorrect Discuss
- 4. The path of the projectile is a parabola.
Options- A. True
- B. False Discuss
- 5. Nichrome contains more iron than Inconel.
Options- A. Agree
- B. Disagree Discuss
- 6. A moving mandrel is used in
Options- A. wiredrawing
- B. tube drawing
- C. metal cutting
- D. forging Discuss
- 7. Which of the following is an amorphous material?
Options- A. Mica
- B. Silver
- C. Lead
- D. Glass Discuss
- 8. The critical pressure ratio for initially dry saturated steam is
Options- A. 0.546
- B. 0.577
- C. 0.582
- D. 0.601 Discuss
- 9. Hydrogen is the __________ substance.
Options- A. lightest
- B. heaviest Discuss
- 10. Cemented carbide tools are generally poor in shear.
Options- A. Yes
- B. No Discuss
More questions
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
Correct Answer: 0.577
Correct Answer: lightest
Correct Answer: Yes
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