Discussion
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- Question
The tensile strength of the welded joint for double fillet is (where s = Leg or size of the weld, l = Length of weld, and ?t = Allowable tensile stress for weld metal)
Options- A. 0.5 s.l.?t
- B. s.l.?t
- C. 2 s.l.?t
- D. 2.s.l.?t
- Correct Answer
- 2 s.l.?t
- 1. The two rows of cylinders in a 'V' type engine are generally arranged at
Options- A. 45°
- B. 60°
- C. 90°
- D. 130° Discuss
- 2. A lap joint is always in __________ shear.
Options- A. single
- B. double Discuss
- 3. The mass of water vapour present in 1 kg of dry air, is called humidity ratio.
Options- A. True
- B. False Discuss
- 4. In petrol engines, during suction stroke, __________ is drawn in the cylinder
Options- A. air and fuel
- B. only fuel
- C. only air
- D. none of these Discuss
- 5. Which of the following is an equation of linear motion?(where, u and v = Initial and final velocity of the body, a = Acceleration of the body, and s = Displacement of the body in time t seconds.)
Options- A. v = u + a.t
- B. s = u.t + 1/2 a.t2
- C. v2 = u2+2a.s
- D. all of these Discuss
- 6. The engines in which the combustion of fuel takes place inside the engine cylinder are called internal combustion engines.
Options- A. True
- B. False Discuss
- 7. The relative humidity lines on a psychrometric chart are
Options- A. vertical and uniformly spaced
- B. horizontal and uniformly spaced
- C. horizontal and non-uniformly spaced
- D. curved lines Discuss
- 8. In order to eliminate knocking in compression ignition engines, there should be
Options- A. short delay period
- B. late auto-ignition
- C. low compression ratio
- D. high self ignition temperature of fuel Discuss
- 9. For a Parson's reaction turbine, if ?1 and ?2 are fixed blade angles at inlet and exit respectively and ?1 and ?2 are the moving blade angles at entrance and exit respectively, then
Options- A. ?1 = ?2 and ?1 = ?2
- B. ?1 = ?1 and ?2 = ?2
- C. ?1 < ?1 and ?2 > ?2
- D. ?1 = ?2 and ?1 = ?2 Discuss
- 10. Which of the following represents a heat pump?
Options- A.
- B.
- C.
- D.
Discuss
More questions
Correct Answer: 60°
Correct Answer: single
Correct Answer: True
Correct Answer: air and fuel
Correct Answer: all of these
Correct Answer: True
Correct Answer: curved lines
Correct Answer: short delay period
Correct Answer: ?1 = ?2 and ?1 = ?2
Correct Answer:
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