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- Question
A well penetrates to 30 m below the static water table. After 24 hours of pumping at 31.40 litres/minute, the water level in a test well at a distance of 80 m is lowered by 0.5 m and in a well 20 m away water is lowered by 1.0 m. The transmissibility of the auifer, is
Options- A. 1.185 m2/minute
- B. 1.285 m2/minute
- C. 1.385 m2/minute
- D. 1.485 m2/minute
- E. 1.585 m2/minute.
- Correct Answer
- 1.385 m2/minute
- 1. The minimum horizontal distance between two parallel main reinforcing bars, is
Options- A. the diameter of the bar if their diameters are same
- B. the diameter of the longer bar if their diameters are unequal
- C. 5 mm more than nominal maximum size of the coarse aggragate
- D. greatest value of the above. Discuss
- 2. Advantage of automatic signalling, is:
Options- A. increased safety
- B. reduction in delays
- C. increase in track capacity
- D. all the above. Discuss
- 3. The minimum diameter of a sewer is kept
Options- A. 10 cm
- B. 15 cm
- C. 20 cm
- D. 25 cm
- E. 30 cm. Discuss
- 4. According to ISI, bitumen is classified into
Options- A. 2 grades
- B. 4 grades
- C. 6 grades
- D. 8 grades.
- E. 10 grades. Discuss
- 5. The Polaris describes a small circle round the pole whose radius is approximately
Options- A. 1°
- B. 2°
- C. 3°
- D. 4°. Discuss
- 6. For the construction of highway (or railway)
Options- A. longitudinal sections are required
- B. cross sections are required
- C. both longitudinal and cross sections are required
- D. none of these. Discuss
- 7. An R.C.C. column of 30 cm diameter is reinforced with 6 bars 12 mm ? placed symmetrically along the circumference. If it carries a load of 40, 000 kg axially, the stress is
Options- A. 49.9 kg/cm2
- B. 100 kg/cm2
- C. 250 kg/cm2
- D. 175 kg/cm2 Discuss
- 8. In GPS, receivers are used are ;
Options- A. electronic clocks
- B. atomic clocks
- C. quartz clocks
- D. mechanical clocks Discuss
- 9. Pick up the correct statement from the following:
Options- A. Calcium chloride acts as a retarder
- B. Gypsum (calcium sulphate) acts as an accelerator
- C. Gypsum (calcium sulphate) acts as a retarder
- D. Calcium chloride acts as an accelerator
- E. Both (c) and (d). Discuss
- 10. Pick up the synthetic resin from the following:
Options- A. Malamine resin
- B. Phenolic resin
- C. Resorcinol resin
- D. Urea resin
- E. All of these. Discuss
More questions
Correct Answer: greatest value of the above.
Correct Answer: all the above.
Correct Answer: 15 cm
Correct Answer: 10 grades.
Correct Answer: 1°
Correct Answer: both longitudinal and cross sections are required
Correct Answer: 49.9 kg/cm2
Correct Answer: quartz clocks
Correct Answer: Both (c) and (d).
Correct Answer: All of these.
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