Engineering Mechanics An ideal machine is one whose efficiency is Between 70 and 80% Between 60 and 70 % Between 80 and 90% 1 Between 70 and 80% Between 60 and 70 % Between 80 and 90% 1 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The unit of work in S.I. units is Newton erg kg-m joule Newton erg kg-m joule ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The principle of transmissibility of forces states that, when a force acts upon a body, its effect is Same at every point on its line of action Different at different points on its line of action Minimum, if it acts at the center of gravity of the body Maximum, if it acts at the center of gravity of the body Same at every point on its line of action Different at different points on its line of action Minimum, if it acts at the center of gravity of the body Maximum, if it acts at the center of gravity of the body ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The velocity ratio for the first system of pulleys is (where n is the number of pulleys.) n n² 2n 2n - 1 n n² 2n 2n - 1 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics For a self locking machine, the efficiency must be Equal to 50% Greater than 50% Less than 50% 1 Equal to 50% Greater than 50% Less than 50% 1 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A rubber ball is dropped from a height of 2 m. If there is no loss of velocity after rebounding, the ball will rise to a height of 4 m 3 m 1 m 2 m 4 m 3 m 1 m 2 m ANSWER DOWNLOAD EXAMIANS APP
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