Engineering Mechanics The mechanical advantage of a lifting machine is the ratio of Distance moved by effort to the distance moved by load All of these Load lifted to the effort applied Output to the input Distance moved by effort to the distance moved by load All of these Load lifted to the effort applied Output to the input ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The maximum efficiency of a screw jack is (1 + sinφ)/(1 - sinφ) (1 - tanφ)/(1 + tanφ) (1 + tanφ)/(1 - tanφ) (1 - sinφ)/(1 + sinφ) (1 + sinφ)/(1 - sinφ) (1 - tanφ)/(1 + tanφ) (1 + tanφ)/(1 - tanφ) (1 - sinφ)/(1 + sinφ) ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A body of mass ‘m’ moving with a constant velocity ‘v’ strikes another body of same mass moving with same velocity but in opposite direction. The common velocity of both the bodies after collision is v 4v 8v 2v v 4v 8v 2v ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The velocity ratio for the third system of pulleys is 2n - 1 2n n² n 2n - 1 2n n² n 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 None of these g/4 g/2 g/3 None of these g/4 g/2 g/3 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics One joule means that Work is done by a force of 1 dyne when it displaces a body through 1 cm Work is done by a force of 1 N when it displaces a body through 1 m Work is done by a force of 1 kg when it displaces a body through 1 m Work is done by a force of 1 g when it displaces a body through 1 cm Work is done by a force of 1 dyne when it displaces a body through 1 cm Work is done by a force of 1 N when it displaces a body through 1 m Work is done by a force of 1 kg when it displaces a body through 1 m Work is done by a force of 1 g when it displaces a body through 1 cm ANSWER DOWNLOAD EXAMIANS APP
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