Engineering Mechanics The center of gravity of a semi-circle lies at a distance of __________ from its base measured along the vertical radius. 3r/ 8 3r/4π 4r/ 3π 8r/3 3r/ 8 3r/4π 4r/ 3π 8r/3 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The moment of inertia of a solid cone of mass ‘m’ and base radius ‘r’ about its vertical axis is 3mr²/10 3mr²/5 2mr²/5 4mr²/5 3mr²/10 3mr²/5 2mr²/5 4mr²/5 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The efficiency of a lifting machine is the ratio of Work done by the machine to the work done on the machine All of these Mechanical advantage to the velocity ratio Output to the input Work done by the machine to the work done on the machine All of these Mechanical advantage to the velocity ratio Output to the input ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics When the spring of a watch is wound, it will possess Electrical energy Heat energy Kinetic energy Strain energy Electrical energy Heat energy Kinetic energy Strain energy ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics If the number of pulleys in a system is equal to its velocity ratio, then it is a __________ system of pulleys. None of these Third Second First None of these Third Second First ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Which of the following are vector quantities? Linear velocity Linear displacement Linear acceleration All of these Linear velocity Linear displacement Linear acceleration All of these ANSWER DOWNLOAD EXAMIANS APP
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