A horizontal shaft AB 15 m in length is fixed at ends When viewed from its left end axial couple of 30 kNm clockwise and 45 kNm anticlockwise act at 6 m anf 12 m from left end respectively. Fixed end couple at end A and B are respectively:
Question 2
The principal stresses at a point across two perpendicular planes are 100 MPa and 50MPa both tensile. Find the obliquity on a plane at 30° with the major principal plane:
Question 3
Consider following statements with respect to plastic hinge:
1. At the location of plastic hinge, radius of curvature is infinite.
2. At the location of plastic hinge, moment is constant.
3. Number of plastic hinges required to convert the redundant structure into a mechanism is ‘r + 1’ where ‘r’ is the redundancy of the structure.
4. Number of plastic hinges required to convert the redundant structure into a determinate one is ‘r’ where ‘r’ is the redundancy of the structure.
Correct statement(s) is/are:
Question 4
Calculate the minimum thickness of the lacing bar required if effective length of the lacing bar is 300 mm, considering maximum permitted slenderness ratio value for a lacing member as per IS 800 :
Question 5
As per IS 800 : 2007, in case of laterally unsupported beams, resistance to lateral torsional buckling need to be considered if:
Question 6
A unit volume of mass of saturated soil is subjected to horizontal seepage under a hydraulic gradient of 0.30. If the saturated unit weight of soil is 20 kN/m3, the resultant body force on soil mass would be: (Take Yw = 10 kN/m3)
Question 7
Which of the following statements regarding retaining wall is/are correct:
1. Active earth pressure is less in dense sands than in loose sands
2. Shear key is provided at base of a cantilever retaining wall to improve the stability against sliding.
3. For stability of a retaining wall against sliding minimum factor of safety should be 1.5.
4. For Stability of a retaining wall against overturning in a cohesive soil, minimum factor of safety should be 2.0.
Question 8
What would be the zero air void unit weight of a soil having w = 20%, Gs = 2.70:
Question 9
The number of additional gauges required in a catchment is ‘X’ times the present number of gauges required, if the error allowed in estimation of mean rainfall is reduced to one third of the present one. Value of ‘X’ is
Question 10
Consider the following statements related to various types of rain gauges:
1. Tipping Bucket type rain gauge indirectly gives intensity of rainfall
2. Weighing bucket-type rain gauge gives a mass curve of rainfall.
3. Simon’s gauge is a Non recording rain gauge.
4. Float type rainguage is used as standard recording type rainguage in India.
