Engineering Mechanics The resultant of two forces P and Q (such that P > Q) acting along the same straight line, but in opposite direction, is given by P - Q Q / P P / Q P + Q P - Q Q / P P / Q P + Q ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A ladder is resting on a rough ground and leaning against a smooth vertical wall. The force of friction will act Zero at its upper end Downward at its upper end Perpendicular to the wall at its upper end Upward at its upper end Zero at its upper end Downward at its upper end Perpendicular to the wall at its upper end Upward at its upper end ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The law of the machine is (where P = Effort applied to lift the load, m = A constant which is equal to the slope of the line, W = Load lifted, and C = Another constant which represents the machine friction.) P = mW + C P = C - mW P = mW - C P = m/W + C P = mW + C P = C - mW P = mW - C P = m/W + C ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The resultant of the two forces ‘P’ and ‘Q’ is ‘R’. If ‘Q’ is doubled, the new resultant is perpendicular to ‘P’. Then None of the listed here Q = R P = Q Q = 2R None of the listed here Q = R P = Q Q = 2R ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics If tension in the cable supporting a lift moving downwards is half the tension when it is moving upwards, the acceleration of the lift is g/2 g/4 None of these g/3 g/2 g/4 None of these g/3 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The algebraic sum of the resolved parts of a number of forces in a given direction is equal to the resolved part of their resultant in the same direction. This is known as Principle of independence of forces None of these Principle of resolution of forces Principle of transmissibility of forces Principle of independence of forces None of these Principle of resolution of forces Principle of transmissibility of forces ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS