Theory of Machine In under damped vibrating system, the amplitude of vibration Decreases exponentially with time Increases linearly with time Increases exponentially with time Decreases linearly with time Decreases exponentially with time Increases linearly with time Increases exponentially with time Decreases linearly with time ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The static balancing is satisfactory for low speed rotors but with increasing speeds, dynamic balancing becomes necessary. This is because, the Unbalanced couples are caused only at higher speeds Effects of unbalances are directly proportional to the speed Unbalanced forces are not dangerous at higher speeds Effects of unbalances are proportional to the square of the speed Unbalanced couples are caused only at higher speeds Effects of unbalances are directly proportional to the speed Unbalanced forces are not dangerous at higher speeds Effects of unbalances are proportional to the square of the speed ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Pitch point on a cam is The point on cam pitch curve having the maximum pressure angle Any point on pitch curve Any point on pitch circle The point on cam pitch curve having the minimum pressure angle The point on cam pitch curve having the maximum pressure angle Any point on pitch curve Any point on pitch circle The point on cam pitch curve having the minimum pressure angle ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a four-bar chain it is required to give an oscillatory motion to the follower for a continuous rotation of the crank. For the lengths of 50 mm of crank and 70 mm of the follower, determine theoretical maximum length of coupler. The minimum length of the coupler will be Slightly more than 45 mm 45 mm Slightly less than 45 mm 95 mm Slightly more than 45 mm 45 mm Slightly less than 45 mm 95 mm ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the following is a pendulum type governor? None of these Hartnell governor Porter governor Watt governor None of these Hartnell governor Porter governor Watt governor ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a spring controlled governor, when the controlling force ____ as the radius of rotation increases, it is said to be a stable governor. Remains constant Increases None of the listed here Decreases Remains constant Increases None of the listed here Decreases ANSWER DOWNLOAD EXAMIANS APP
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