Civil Engineering - GATE Exam Questions

36. 

The value of the camber recommended for cement concrete roads in areas of heavy rainfall is :

A. 1 in 25
B. 1 in 33
C. 1 in 40
D. 1 in 50

Answer: Option D

Explanation:

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37. 

A waste water sample diluted to 100 times with aeration water had an initial dissolved oxygen (DO) of 7.0 mg/l and after 5 days of incubation at 20°C, the DO was zero. The BOD of waste water is :

A. 700 mg/l
B. 100 mg/l
C. cannot be determined
D. 7mg/l

Answer: Option A

Explanation:

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38. 

For the strip footing on a saturated clay, for the given failure surface as shown in the below figure, the bearing capacity equation takes the form : (where Cu - undrained shear strength φu - angle of internal friction B - width of strip footing qc - ultimate bearing capacity of soil)

A. 5.7 Cu
B. 5.14 Cu
C. Cu
D. Cu

Answer: Option B

Explanation:

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39. 

A soil mass has coefficients of horizontal and vertical permeability as 9 x 10-7 cm/s and 4 x 10-7 cm/s, respectively. The transformed coefficient of permeability of an equivalent isotropic soil mass is

A. 9 x 10-7 cm/s
B. 4 x 10-7 cm/s
C. 13 x 10-7 cm/s
D. 6 x 10-7 cm/s

Answer: Option D

Explanation:

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40. 

A reinforced concrete wall carrying vertical loads is generally designed as per recommendations given for columns. The ratio of minimum reinforcements in the vertical and horizontal directions is

A. 2 : 1
B. 5 : 3
C. 1 : 1
D. 3 : 5

Answer: Option A

Explanation:

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