Engineering Mechanics A screw jack used for lifting the loads is An ideal machine A non-reversible machine None of these A reversible machine An ideal machine A non-reversible machine None of these A reversible machine ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics If ‘P’ is the force acting on the body, ‘m’ is the mass of the body and ‘a’ is the acceleration of the body, then according to Newton's second law of motion, P/m.a = 0 P × m.a = 0 P + m.a = 0 P - m.a = 0 P/m.a = 0 P × m.a = 0 P + m.a = 0 P - m.a = 0 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Coplanar concurrent forces are those forces which Do not meet at one point and their lines of action do not lie on the same plane Meet at one point and their lines of action also lie on the same plane Do not meet at one point, but their lines of action lie on the same plane Meet at one point, but their lines of action do not lie on the same plane Do not meet at one point and their lines of action do not lie on the same plane Meet at one point and their lines of action also lie on the same plane Do not meet at one point, but their lines of action lie on the same plane Meet at one point, but their lines of action do not lie on the same plane ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics If a number of forces are acting at a point, their resultant will be inclined at an angle 'θ' with the horizontal, such that tanθ = ΣV/ΣH tanθ = √(ΣV + ΣH) tanθ = ΣH/ΣV tanθ = ΣV × ΣH tanθ = ΣV/ΣH tanθ = √(ΣV + ΣH) tanθ = ΣH/ΣV tanθ = ΣV × ΣH ANSWER DOWNLOAD EXAMIANS APP
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 Q / P P / Q P + Q P - Q Q / P P / Q P + Q P - Q ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics In a single threaded worm and worm wheel, the number of teeth on the worm is 50. The diameter of the effort wheel is 100 mm and that of load drum is 50 mm. The velocity ratio is 200 50 400 100 200 50 400 100 ANSWER DOWNLOAD EXAMIANS APP
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