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  • Question

  • ? and ? are the angles subtended by a point of elevation h at their air station with respective plumb points. Photo scale and focal length of the lens being S and f respectively. Parallax displacement of the point due to relief, is


  • Options
  • A. ? and ? are the angles subtended by a point of elevation h at their air station with respective plum
  • B. ? and ? are the angles subtended by a point of elevation h at their air station with respective plum
  • C. ? and ? are the angles subtended by a point of elevation h at their air station with respective plum
  • D. ? and ? are the angles subtended by a point of elevation h at their air station with respective plum.

  • Correct Answer
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    • More questions

    • 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

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