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- Question
A level when set up 25 m from peg A and 50 m from peg B reads 2.847 on a staff held on A and 3.462 on a staff held on B, keeping bubble at its centre while reading. If the reduced levels of A and B are 283.665 m and 284.295 m respectively, the collimation error per 100 m is
Options- A. 0.015 m
- B. 0.030 m
- C. 0.045 m
- D. 0.060 m
- Correct Answer
- 0.060 m
- 1. The increased cohesiveness of concrete, makes it
Options- A. less liable to segregation
- B. more liable to segregation
- C. more liable to bleeding
- D. more liable for surface scaling in frosty weather
- E. none of these. Discuss
- 2. Couple roof is used for spans
Options- A. 3.5 m or less
- B. 3.5 m but less than 5 m
- C. 5 m but less than 6.5 m
- D. 6.5 m but less than 8 m. Discuss
- 3. Curing of pavements, floors, roofs and slabs, is done by
Options- A. membrane method
- B. ponding method
- C. covering surface with bags
- D. sprinkling water method
- E. shading concrete method. Discuss
- 4. Regional Indian railways use different types of sleepers according to their
Options- A. availability
- B. economy
- C. suitability
- D. design
- E. all the above. Discuss
- 5. Pick up the correct statement from the following:
Options- A. High percentage of C3S and low percentage of C2S cause rapid hardening
- B. High percentage of C3S and low percentage of C2S make the cement less resistive to chemical attack
- C. Low percentage of C3S and high percentage of C2S contribute to slow hardening
- D. Low percentage of C3S and high percentage of C2S provide greater resistance to chemical attack
- E. All the above. Discuss
- 6. Stability of hill slopes depends upon
Options- A. nature of the slope
- B. angle of the slope
- C. geological conditions
- D. ground water conditions
- E. all the above. Discuss
- 7. Pile foundations are suitable for
Options- A. water logged soils
- B. soft rocks
- C. compact soils
- D. multistoreyed buildings
- E. none of these. Discuss
- 8. Heel of crossing is the line joining
Options- A. ends of splice rail and point rail
- B. ends of lead rails butting the crossing
- C. ends of wing rails
- D. throat and actual nose of crossing. Discuss
- 9. Cohesion in soil
Options- A. decreases active pressure and increases passive resistance
- B. decreases both active pressure and passive resistance
- C. increases the active pressure and decreases the passive resistance
- D. increases both active pressure and passive resistance. Discuss
- 10. If the loading on a prestressed rectangular beam, is uniformly distributed, the tendon to be provided should be .
Options- A. straight below centroidal axis
- B. parabolic with convexity downward
- C. parabolic with convexity upward
- D. straight above centroidal axis
- E. none of these. Discuss
More questions
Correct Answer: less liable to segregation
Correct Answer: 3.5 m or less
Correct Answer: ponding method
Correct Answer: all the above.
Correct Answer: All the above.
Correct Answer: all the above.
Correct Answer: water logged soils
Correct Answer: ends of splice rail and point rail
Correct Answer: increases both active pressure and passive resistance.
Correct Answer: parabolic with convexity downward
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