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MCQs

Total Questions : 250 | Page 3 of 25 pages
Question 21.

A hyetograph is a graph representing



  1.    rainfall volume with time
  2.    rainfall intensity with time
  3.    rainfall intensity with duration
  4.    rainfall intensity over an area
 Discuss Question
Answer: Option B. -> rainfall intensity with time


Question 22.


Plate bearing test with 20 cm diameter plate on soil subgrade yielded a pressure of 1.25 x 105 N/m2 at 0.5 cm deflection. What is the elastic modulus of subgrade ?



  1.    56.18 x 105 N/m2
  2.    22.10 x 105 N/m2
  3.    44.25 x 105 N/m2
  4.    50.19 x 105N/m2
  5.    None.
 Discuss Question
Answer: Option E. -> None.


Question 23.


Use of coagulants such as alum



  1.    results in reduction of pH of the treated water.
  2.    results in increase of pH of the treated water
  3.    results in no chnage in pH of the treated water.
  4.    may cause an increase in decrease of decrease of pH of the treated water.
 Discuss Question
Answer: Option A. -> results in reduction of pH of the treated water.


Question 24.

The
maximum permissible deflection for a gantry girder, spanning over 6 m,
on which an EOT (electric overhead travelling) crane of capacity 200 kN
is operating, is



  1.    8 mm
  2.    10 mm
  3.    12 mm
  4.    18 mm
 Discuss Question
Answer: Option A. -> 8 mm


Question 25.

The unit for coefficient of subgrade modulus is



  1.    kN/m3
  2.    kN/m2
  3.    kN/m
  4.    kN.m
 Discuss Question
Answer: Option A. -> kN/m3


Question 26.

As
per IS : 800-1984 the maximum allowable slenderness ratio of
compression members carrying forces resulting from dead load and
superimposed load is



  1.    180
  2.    250
  3.    300
  4.    400
 Discuss Question
Answer: Option A. -> 180


Question 27.


For a flow of
5.7 MLD (million litres per day) and a detention time of 2 hours, the
surface area of a rectangular sedimentation tank to remove all particles
having settling velocity of 0.33 mm/s is



  1.    20 m2
  2.    100 m2
  3.    200 m2
  4.    400 m2
 Discuss Question
Answer: Option C. -> 200 m2


Question 28.


For a highway with design speed of 100 kmph, the safe overtaking sight distance is (assume accelerations as 0.53 m/sec2)



  1.    300 m
  2.    750 m
  3.    320 m
  4.    470 m
 Discuss Question
Answer: Option B. -> 750 m


Question 29.


A soil sample has a void ratio of 0.5 and its porosity will be close to



  1.    50%
  2.    66%
  3.    100%
  4.    33%
 Discuss Question
Answer: Option D. -> 33%


Question 30.

The shape of clay particle is usually



  1.    angular
  2.    flaky
  3.    tubular
  4.    rounde
 Discuss Question
Answer: Option B. -> flaky


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