Strength of Materials Least force required to draw a body up the inclined plane is W sin (plane inclination + friction angle) applied in the direction along the plane at an angle equal to the angle of friction to the inclined plane horizontally vertically along the plane at an angle equal to the angle of friction to the inclined plane horizontally vertically ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials The effort required to lift a load W on a screw jack with helix angle a and angle of friction<="" div=""> Wtan(a + <)>) Wsin(a + <(>) Wcos(a + ) Wtan(a-<)>) Wtan(a + <)>) Wsin(a + <(>) Wcos(a + ) Wtan(a-<)>) ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials According to principle of transmissibility of forces, the effect of a force upon a body is Maximum when it acts at the center of gravity of a body Minimum when it acts at the C.G. of the body Different at different points in its line of action The same at every point in its line of action Maximum when it acts at the center of gravity of a body Minimum when it acts at the C.G. of the body Different at different points in its line of action The same at every point in its line of action ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials A semi-circular disc rests on a horizontal surface with its top flat surface horizontal and circular portion touching down. The coefficient of friction between semi-cricular disc and horizontal surface is i. This disc is to be pulled by a horizontal force applied at one edge and it always remains horizontal. When the disc is about to start moving, its top horizontal force will remain horizontal slant up towards direction of pull unpredictable slant down towards direction of pull remain horizontal slant up towards direction of pull unpredictable slant down towards direction of pull ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials A number of forces acting at a point will be in equilibrium if Their total sum is zero Sum of resolved parts in any two perpendicular directions are both zero Two resolved parts in two directions at right angles are equal All of them are inclined equally Their total sum is zero Sum of resolved parts in any two perpendicular directions are both zero Two resolved parts in two directions at right angles are equal All of them are inclined equally ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials Which of the following is not the unit of work, energy and heat ? kcal kg m hp kWhr kcal kg m hp kWhr ANSWER DOWNLOAD EXAMIANS APP
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