Engineering Mechanics Which of the following statement is incorrect? The velocity ratio of a machine is the ratio of load lifted to the effort applied A force acting in the opposite direction to the motion of the body is called force of friction The ratio of the limiting friction to the normal reaction is called coefficient of friction A machine whose efficiency is 100% is known as an ideal machine The velocity ratio of a machine is the ratio of load lifted to the effort applied A force acting in the opposite direction to the motion of the body is called force of friction The ratio of the limiting friction to the normal reaction is called coefficient of friction A machine whose efficiency is 100% is known as an ideal machine ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The maximum frictional force which comes into play when a body just begins to slide over another surface is called Limiting friction Sliding friction Rolling friction Kinematic friction Limiting friction Sliding friction Rolling friction Kinematic friction ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The total energy possessed by a system of moving bodies Is maximum in the start and minimum at the end Is constant at every instant Varies from point to point Is minimum in the start and maximum at the end Is maximum in the start and minimum at the end Is constant at every instant Varies from point to point Is minimum in the start and maximum at the end ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The centre of gravity a T-section 100 mm × 150 mm × 50 mm from its bottom is 125 mm 75 mm 87.5 mm 50 mm 125 mm 75 mm 87.5 mm 50 mm ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The center of gravity of a quadrant of a circle lies along its central radius (r) at a distance of 0.5 r 0.6 r 0.7 r 0.8 r 0.5 r 0.6 r 0.7 r 0.8 r ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A framed structure is imperfect, if the numbers of members are __________ (2j - 3). Equal to Greater than Either (B) or (C) Less than Equal to Greater than Either (B) or (C) Less than ANSWER DOWNLOAD EXAMIANS APP
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