A roundabout is provided with an average entry width of 8.4 m, width of weaving

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Question
A roundabout is provided with an average entry width of 8.4 m, width of weaving section as 14 m, and length of the weaving section between channelizing islands as 35 m. The crossing traffic and total traffic on the weaving section are 1000 and 2000 PCU per hour respectively. The nearest rounded capacity of the roundabout (in PCU per hour) is
Options
A. 3300
B. 3700
C. 4500
D. 5200

Correct Answer

3700

GATE Exam Questions problems

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2. Compaction by vibratory roller is the best method of compaction in case of
Options
A. moist silty sand
B. well graded dry sand
C. clay of medium compressibility
D. silt of high compressibility

3. Rivets and bolts subjected to both shear stress (?_{vf , cal}) and axial tensile stress (?_{tf , cal}) shall be so proportioned that the stresses do not exceed the respective allowable stresses ?_vf and ?_tf and the value of exceed does not exceed
Options
A. 1.0
B. 1.2
C. 1.4
D. 1.8

5. Two footings, one circular and the other square, are founded on the surface of a purely cohesionless soil. The diameter of the circular footing is same as that of the side of the square footing. The ratio of their ultimate bearing capcities is
Options
A. 3/4
B. 4/3
C. 1.0
D. 1.3

6. 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 :
Options
A. 700 mg/l
B. 100 mg/l
C. cannot be determined
D. 7mg/l

7. The order or the flexibility matrix for a structure is,
Options
A. equal to the number of redundant forces
B. more than the number of redundant forces
C. less than the number of redundant forces
D. equal to the number of redundant forces plus three

8. 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 C_u - undrained shear strength ?_u - angle of internal friction B - width of strip footing qc - ultimate bearing capacity of soil)
Options
A. 5.7 C_u
B. 5.14 C_u
C. 4? C_u
D. 2? C_u

9. The Bowen ratio is defined as :
Options
A. Ratio of heat and vapour diffusivities.
B. Proportionality constant between vapour heat flux and sensible heat flux.
C. Ratio of actual evapotranspiration and potential evapotranspiration.
D. Proportionality constant between heat energy used up in evaporation and the bulk radiation from a water body.

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