The influence line diagram for the force in member 'a' of the truss shown below is given by
Options
A.
B.
C.
D.
Correct Answer
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1. For a 'best' symmetrical trapezoidal section of an open channel with a given area of section and side slopes, one of the following statements holds true :
Options
A. Half the top width is equal to one of the side slopes
B. Half the top width plus the bottom width is equal to both the side slopes put together
C. Water depth is equal to half bottom width
D. Hydraulic mean depth is equal to half the top width
Correct Answer: Curve 1: Dense sand and over consolidated clay Curve 2: Loose sand and normally consolidated clay
3. A test plate 30 cm x 30 cm resting on a sand deposit settles by 10 mm under a certain loading intensity. A footing 150 cm x 200 cm resting on the same sand deposit and loaded to the same load intensity settles by
4. Two completely penetrating wells are located L (in metres) apart, in homogeneous confined aquifer. The drawdown measured at the mid point between the two wells (at a distance of 0.5 L from both the wells) is 2.0 m when only the first well is being pumped at the steady rate of Q1 m3/sec. When both the wells are being pumped at identical steady rate of Q2 m3/sec, the drawdown measured at the same location is 8, 0 m. It may be assumed that the drawdown at the wells always remains at 10.0 m when being pumped and the radius of influence is larger than 0.5 LQ1/Q2 is equal to
Correct Answer: saturated fine and medium sands of uniform particle size
9. A volume of 3.0 x 106 m3 of ground water was pumped out from an unconfined aquifer, uniformly from an area of 5 km2. The pumping lowered the water table from initial level of 102 m to 99 m. The specific yield of the aquifier is
10. 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?