Strength of Materials D Alembert’s principle is used for determining stresses in the truss designing safe structures reducing the problem of kinetics to equivalent statics problem stability of floating bodies determining stresses in the truss designing safe structures reducing the problem of kinetics to equivalent statics problem stability of floating bodies ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials Pick up wrong statement about friction force for dry surfaces. Friction force is proportional to velocity of sliding independent of the area of contact surfaces proportional to normal load between the surfaces dependent on the materials of contact surface proportional to velocity of sliding independent of the area of contact surfaces proportional to normal load between the surfaces dependent on the materials of contact surface ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials A number of forces acting at a point will be in equilibrium if Sum of resolved parts in any two perpendicular directions are both zero Two resolved parts in two directions at right angles are equal Their total sum is zero All of them are inclined equally Sum of resolved parts in any two perpendicular directions are both zero Two resolved parts in two directions at right angles are equal Their total sum is zero All of them are inclined equally 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 Wcos(a + ) Wtan(a-<)>) Wsin(a + <(>) Wtan(a + <)>) Wcos(a + ) Wtan(a-<)>) Wsin(a + <(>) Wtan(a + <)>) ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials The resultant of the following three couples 20 kg force, 0.5 m arm, + ve sense 30 kg force, 1 m arm, – ve sense 40 kg force, 0.25 m arm, + ve sense having arm of 0.5 m will be 10 kg, – ve sense 10 kg, + ve sense 20 kg, – ve sense 20 kg, + ve sense 10 kg, – ve sense 10 kg, + ve sense 20 kg, – ve sense 20 kg, + ve sense ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials A body of weight W on inclined plane of a being pulled up by a horizontal force P will be on the point of motion up the plane when P is equal to W Wtan(a + <|)) Wan(a-) W sin (a + $) W Wtan(a + <|)) Wan(a-) W sin (a + $) ANSWER DOWNLOAD EXAMIANS APP
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