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- Question
ω rad/sec is the angular velocity of a crank whose radius is r. If it makes θ° with inner dead centre and obliquity of the connecting rod l is φ, the velocity v of the piston, is given by the equation
Options- A. ω2(l cos φ + r sin φ tan θ)
- B. ω2(l sin φ + r cos φ tan θ)
- C. ω(l sin φ + r cos φ tan θ)
- D. ω2(l sin φ - r cos θ tan φ).
- Correct Answer
- ω(l sin φ + r cos φ tan θ)
- 1. Safe speed (V) on a curve of radius 970 metres provided with two transition curves on Board Gauge track, is
Options- A. 112 km/hour
- B. 122 km/hour
- C. 132 km/hour
- D. 142 km/hour Discuss
- 2. In flowing liquids pitot tubes are used measure
Options- A. discharge
- B. pressure
- C. velocity
- D. depth. Discuss
- 3. The rail section which is not used on Indian metre gauge tracks, is
Options- A. 25 R
- B. 30 R
- C. 35 R
- D. 40 R Discuss
- 4. Poisson's ratio for steel within elastic limit, ranges from
Options- A. 0.15 to 0.20
- B. 0.25 to 0.24
- C. 0.25 to 0.33
- D. 0.33 to 0.35
- E. 0.45 to 0.50 Discuss
- 5. The load on a lintel is assumed as uniformly distributed if the height of the masonry above it, is upto a height of
Options- A. the effective span
- B. 1.25 times the effective span
- C. 1.50 times the effective span
- D. 2.0 times the effective span
- E. 2.5 times the effective span. Discuss
- 6. For B.G. single track, the section of the tunnel must have a width
Options- A. 4.2 m to 4.5 m
- B. 4.5 m to 4.8 m
- C. 4.9 m to 5.5 m
- D. 5.5 m to 5.8 m Discuss
- 7. Distance between inner faces of the flanges, is kept
Options- A. equal to the gauge distance
- B. slightly less than the gauge distance
- C. slightly more than the gauge distance
- D. none of these. Discuss
- 8. A welded rail joint is generally
Options- A. supported on a sleeper
- B. supported on a metal plate
- C. suspended
- D. none of these. Discuss
- 9. The ratio of crippling loads of a column having both the ends fixed to the column having both the ends hinged, is
Options- A. 1
- B. 2
- C. 3
- D. 4 Discuss
- 10. The depth of the crest of a scouring sluice below the crest of a head regulator, is generally kept
Options- A. 0.20 m
- B. 1.20 m
- C. 2.20 m
- D. 3.20 m
- E. 4.90 m Discuss
More questions
Correct Answer: 132 km/hour
Correct Answer: velocity
Correct Answer: 40 R
Correct Answer: 0.25 to 0.33
Correct Answer: 1.25 times the effective span
Correct Answer: 4.9 m to 5.5 m
Correct Answer: slightly less than the gauge distance
Correct Answer: suspended
Correct Answer: 4
Correct Answer: 1.20 m
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