Engineering Mechanics If the number of pulleys in a system is equal to its velocity ratio, then it is a __________ system of pulleys. First Second None of these Third First Second None of these Third ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The maximum efficiency of a lifting machine is 1/m m/V.R. 1/(m × V.R.) V.R./m 1/m m/V.R. 1/(m × V.R.) V.R./m ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The centre of gravity of a uniform lamina lies at The bottom surface All of these The midpoint of its axis The centre of heavy portion The bottom surface All of these The midpoint of its axis The centre of heavy portion ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Coefficient of friction depends upon Nature of surface only None of these Both (A) and (B) Area of contact only Nature of surface only None of these Both (A) and (B) Area of contact only 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/180 2πN/60 πN/60 2πN/180 πN/180 2πN/60 πN/60 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The moment of inertia of a thin spherical shell of mass m and radius r, about its diameter is 3mr²/5 2mr²/5 mr²/3 2mr²/3 3mr²/5 2mr²/5 mr²/3 2mr²/3 ANSWER DOWNLOAD EXAMIANS APP
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