Calculate the maximum bending moment for beam with over hangs shown below
Question 2
Assertion (A): If the state of a point is in pure shear,then the principal planes through that point makes an angle of 45Оwith plane of shearing stress carries principal stresses whose magnitude is equal to that of shearing stress.
Reason (R):Complemetary shear stresses are equal in magnitude but opposite in direction.
Question 3
Consider the following statements regarding bending moment. Which of the following statement is ‘FALSE’?
Question 4
Assertion (A): The back sight is used to determine the height of instrument in the rise and fall method of booking levels.
Reason (R):The height of instrument is given as the sum of the elevation of benchmark and the back sight.
Question 5
Assertion(A):A plane state of stress does not represent plane state of strain as well.
Reason(R):Normal stress acting in x and y directions will also result into normal strain along the z-direction.
Question 6
If backsight and foresight distance are balanced
(1) The difference in elevation between two points can be directly calculated by taking difference of the two readings
(2) No correction for the inclination of the line of sight is necessary
Question 7
A carpenter glues a pair of cylindrical wooden logs by bonding their end faces at an angle of θ = 30degrees as shown in the figure
The glue used at the interface fails if
Criterion 1; the maximum normal stress exceeds 3.5MPa.
Criterion 2; the maximum shear stress exceeds 1.5 Mpa.
Assume that the interface falls before the logs fail.
When a uniform tensile stress of 4MPa is applied,the interface.
Question 8
In a leveling survey, the summation of all back sights and the summation of all foresights are 7.475 and 7.395 m, respectively. The reduced level of the initial benchmark is 100.000 m. The reduced level of the last point where the staff is held will be
Question 9
In the analysis of beams subjected to loads, the point with Nil Bending Moment can be a 1) Point of Contra flexure 2) Point of Maximum Shear Force 3) Point of Inflection Which of the above statements is/are correct?
Question 10
Assertion (A): If both the fore sight and the back sight exist at a station, the reduced level is calculated using the fore sight.
Reason (R):The height of instrument remains the same for the fore sight while it changes for the back sight.
