Engineering Mechanics An ideal machine is one whose efficiency is 1 Between 80 and 90% Between 70 and 80% Between 60 and 70 % 1 Between 80 and 90% Between 70 and 80% Between 60 and 70 % ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The friction experienced by a body, when in motion, is known as Static friction Rolling friction Dynamic friction Limiting friction Static friction Rolling friction Dynamic friction Limiting friction ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The velocity ratio for the third system of pulleys is 2n - 1 2n n n² 2n - 1 2n n n² 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 length of the handle All of these Increasing the radius of the load drum Increasing the number of teeth of the pinion Increasing the length of the handle All of these Increasing the radius of the load drum ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A particle inside a hollow sphere of radius r, having coefficient of friction µ can rest up to height of r/3 r/A r/2 0.134 r r/3 r/A r/2 0.134 r ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Coefficient of friction depends upon Both (A) and (B) None of these Nature of surface only Area of contact only Both (A) and (B) None of these Nature of surface only Area of contact only ANSWER DOWNLOAD EXAMIANS APP
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