Engineering Mechanics An ideal machine is one whose efficiency is Between 60 and 70 % Between 80 and 90% 1 Between 70 and 80% Between 60 and 70 % Between 80 and 90% 1 Between 70 and 80% ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The force, by which the body is attracted, towards the center of the earth, is called Impulsive force Momentum Weight Mass Impulsive force Momentum Weight Mass 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/3 g/4 g/2 None of these g/3 g/4 g/2 None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics If a number of forces are acting at a point, their resultant is given by (∑V)2 +(∑H)2 +2(∑V)(∑H) (∑V)2 + (∑H)2 √[(∑V)2 +(∑H)2 +2(∑V)(∑H)] √[(∑V)2 + (∑H)2] (∑V)2 +(∑H)2 +2(∑V)(∑H) (∑V)2 + (∑H)2 √[(∑V)2 +(∑H)2 +2(∑V)(∑H)] √[(∑V)2 + (∑H)2] ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The forces, which meet at one point and their lines of action also lie on the same plane, are known as Non-coplanar non-concurrent forces Coplanar concurrent forces Coplanar non-concurrent forces Non-coplanar concurrent forces Non-coplanar non-concurrent forces Coplanar concurrent forces Coplanar non-concurrent forces Non-coplanar concurrent forces ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics In order to determine the effects of a force, acting on a body, we must know Magnitude of the force Nature of the force i.e. whether the force is push or pull Line of action of the force All of these Magnitude of the force Nature of the force i.e. whether the force is push or pull Line of action of the force All of these ANSWER DOWNLOAD EXAMIANS APP
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