Engineering Mechanics The maximum efficiency of a lifting machine is 1/(m × V.R.) 1/m m/V.R. V.R./m 1/(m × V.R.) 1/m m/V.R. V.R./m ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A semicircular disc rests on a horizontal surface with its top flat surface horizontal and circular portion touching down. The coefficient of friction between semi circular disc and horizontal surface is µ. This disc is to be pulled by a horizontal force applied at one edge and it always remains horizontal. When the disc is about to start moving, its top horizontal force will Remain horizontal None of these Slant up towards direction of pull Slant down towards direction of pull Remain horizontal None of these Slant up towards direction of pull Slant down towards direction of pull 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 Line of action of the force Nature of the force i.e. whether the force is push or pull All of these Magnitude of the force Line of action of the force Nature of the force i.e. whether the force is push or pull All of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The unit of angular velocity is Revolutions/min Both (B) and (C) rad/s m/min Revolutions/min Both (B) and (C) rad/s m/min ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A couple produces None of these Combined translatory and rotational motion Rotational motion Translatory motion None of these Combined translatory and rotational motion Rotational motion Translatory motion 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 +2(∑V)(∑H)] (∑V)2 + (∑H)2 √[(∑V)2 + (∑H)2] (∑V)2 +(∑H)2 +2(∑V)(∑H) √[(∑V)2 +(∑H)2 +2(∑V)(∑H)] (∑V)2 + (∑H)2 √[(∑V)2 + (∑H)2] ANSWER DOWNLOAD EXAMIANS APP
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