Discussion
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- Question
The total pressure exerted by the mixture of air and water vapour is equal to the sum of pressures which each constituent would exert, if it occupied the same space by itself. This statement is called
Options- A. Kinetic theory of gases
- B. Newton's law of gases
- C. Dalton's law of partial pressures
- D. Avogadro's hypothesis
- Correct Answer
- Dalton's law of partial pressures
- 1. The elongation of a conical bar under its own weight is __________ that of prismatic bar of the same length.
Options- A. equal to
- B. half
- C. one-third
- D. two-third Discuss
- 2. The liquid used in manometers should have
Options- A. low density
- B. high density
- C. low surface tension
- D. high surface tension Discuss
- 3. According to Kelvin-Planck's statement, a perpetual motion of the __________ is impossible.
Options- A. first kind
- B. second kind Discuss
- 4. The unit of power in S.I. units is kilowatt.
Options- A. True
- B. False Discuss
- 5. The purpose of transmission in an automobile is
Options- A. to vary the speed of automobile
- B. to vary the torque at the wheels
- C. to vary the power of automobile
- D. none of these Discuss
- 6. The shear force of a cantilever beam of length l and carrying a gradually varying load from zero at the free end and w per unit length at the fixed end is __________ at the fixed end.
Options- A. zero
- B. wl/4
- C. wl/2
- D. wl Discuss
- 7. The height of each tooth of a broach is
Options- A. same throughout
- B. in progressively decreasing order
- C. in progressively increasing order
- D. none of these Discuss
- 8. A feed gear box for a screw cutting lathe is designed on the basis of
Options- A. geometric progression
- B. arithmetic progression
- C. harmonic progression
- D. none of these Discuss
- 9. The maximum bending moment of a simply supported beam of span l and carrying a point load W at the centre of beam, is
Options- A. Wl/4
- B. Wl/2
- C. Wl
- D. Wl2/4 Discuss
- 10. A device used in a boiler to control the flow of steam from the boiler to the main pipe and to shut off the steam completely when required, is known as
Options- A. blow off cock
- B. fusible plug
- C. superheater
- D. stop valve Discuss
More questions
Correct Answer: one-third
Correct Answer: high surface tension
Correct Answer: second kind
Correct Answer: True
Correct Answer: to vary the torque at the wheels
Correct Answer: wl/2
Correct Answer: in progressively increasing order
Correct Answer: geometric progression
Correct Answer: Wl/4
Correct Answer: stop valve
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