Civil Engineering - GATE Exam Questions

Exercise :: GATE Exam Questions - Section 7

The unit for coefficient of subgrade modulus is

A.	kN/m³
B.	kN/m²
C.	kN/m
D.	kN.m

Answer: Option A

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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 ?

A.	56.18 x 10⁵ N/m²
B.	22.10 x 10⁵ N/m²
C.	44.25 x 10⁵ N/m²
D.	50.19 x 10⁵ N/m²
E.	None.

Answer: Option E

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Use of coagulants such as alum

A.	results in reduction of pH of the treated water.
B.	results in increase of pH of the treated water.
C.	results in no chnage in pH of the treated water.
D.	may cause an increase in decrease of decrease of pH of the treated water.

Answer: Option A

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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