Engineering Mechanics If a body is acted upon by a number of coplanar non-concurrent forces, it may Be completely at rest All of these Move in any one direction rotating about itself Rotate about itself without moving Be completely at rest All of these Move in any one direction rotating about itself Rotate about itself without moving ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The velocity ratio of a single purchase crab winch can be increased by Increasing the number of teeth of the pinion Increasing the radius of the load drum All of these Increasing the length of the handle Increasing the number of teeth of the pinion Increasing the radius of the load drum All of these Increasing the length of the handle ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The angular velocity (in rad/s) of a body rotating at N revolutions per minute is 2πN/180 πN/60 πN/180 2πN/60 2πN/180 πN/60 πN/180 2πN/60 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics For a self locking machine, the efficiency must be Equal to 50% 1 Greater than 50% Less than 50% Equal to 50% 1 Greater than 50% Less than 50% ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Moment of inertia of a circular section about an axis perpendicular to the section is πd4/32 πd4/64 πd3/16 πd3/32 πd4/32 πd4/64 πd3/16 πd3/32 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The force required to move the body up the plane will be minimum if it makes an angle with the inclined plane __________ the angle of friction. Equal to Less than None of these Greater than Equal to Less than None of these Greater than ANSWER DOWNLOAD EXAMIANS APP
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