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- Question
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
- Correct Answer
- 4.9 m to 5.5 m
- 1. The centre of gravity of a quadrant of a circle lies along its central radius at a distance of
Options- A. 0.2 R
- B. 0.3 R
- C. 0.4 R
- D. 0.5 R
- E. 0.6 R. Discuss
- 2. If a rectangular prestressed beam of an effective span of 5 meters and carrying a total load 3840 kg/m, is designed by the load balancing method, the central dip of the parabolic tendon should be
Options- A. 5 cm
- B. 10 cm
- C. 15 cm
- D. 20 cm
- E. 25 cm Discuss
- 3. The bearing capacity of granite is generally
Options- A. 5 to 10 kg/cm2
- B. 15 to 20 kg/cm2
- C. 30 to 35 kg/cm2
- D. 40 to 45 kg/cm2. Discuss
- 4. The factor for deciding the type of sleeper, is
Options- A. easy fixing and removal of rails
- B. provision of sufficient bearing area for rails
- C. initial and maintenance costs
- D. strength to act as a beam under loads
- E. all the above. Discuss
- 5. Pick up the incorrect statement from the following:
Options- A. As a wave of sea water approaches the coast line, it is generally accompanied by a drift of water in the direction of wave advance
- B. The on-shore wind helps to produce wave action as well as rise of M.S.L.
- C. A falling hydraulic gradient occurs in the direction of the wave
- D. The wave while receding carries finer particles out to deep water. Discuss
- 6. If the permissible compressive and tensile stresses in a singly reinforced beam are 50 kg/cm2 and 1400 kg/cm2 respectively and the modular ratio is 18, the percentage area At of the steel required for an economic section, is
Options- A. 0.496%
- B. 0.596%
- C. 0.696%
- D. 0.796%
- E. none of these. Discuss
- 7. Plain chlorination is used for water
Options- A. with turbidities less than 20 mg/litre
- B. obtained from clear lakes
- C. consumed during emergencies
- D. supplies to armies during war
- E. all the above. Discuss
- 8. A ball moving with a velocity of 5 m/sec impinges a fixed plane at an angle of 45° and its direction after impact is equally inclined to the line of impact. If the coefficient of restitution is 0.5, the velocity of the ball after impact will be
Options- A. 0.5 m/sec
- B. 1.5 m/sec
- C. 2.5 m/sec
- D. 3.5 m/sec
- E. 4.5 m/sec. Discuss
- 9. Pick up the incorrect statement from the following regarding fire hydrants
Options- A. Fire hydrants are fitted in water mains at 100 m to 150 m apart at fire
- B. The minimum water pressure hydrants, is kept 1.5 kg/cm2
- C. The water at pressure 1 to 1.5 kg/cm2 is made available for 4 to 5 hours for constant use
- D. None of these. Discuss
- 10. The spectral region of the electromagnetic radiation which passes through the atmosphere without much attenuation is known as:
Options- A. ozone hole
- B. atmospheric window
- C. ozone window
- D. black hole Discuss
More questions
Correct Answer: 0.6 R.
Correct Answer: 10 cm
Correct Answer: 30 to 35 kg/cm2
Correct Answer: all the above.
Correct Answer: A falling hydraulic gradient occurs in the direction of the wave
Correct Answer: 0.696%
Correct Answer: all the above.
Correct Answer: 2.5 m/sec
Correct Answer: None of these.
Correct Answer: atmospheric window
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