Theory of Machine If ω/ωn is very high for a body vibrating under steady state vibrations, the phase angle for all values of damping factors, will tend to approach 90° 360° 180° 0° 90° 360° 180° 0° ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a multiple V-belt drive, when a single belt is damaged, it is preferable to change the complete set to Reduce slip Ensure uniform loading Ensure proper alignment Reduce vibration Reduce slip Ensure uniform loading Ensure proper alignment Reduce vibration ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the following is false statement in respect of differences between machine and structure? Machines modify movement and work, whereas structures modify forces Machines transmit mechanical work, whereas structures transmit forces Efficiency of machines as well as structures is below 100 % In machines, relative motion exists between its members, whereas same does not exist in case of structures Machines modify movement and work, whereas structures modify forces Machines transmit mechanical work, whereas structures transmit forces Efficiency of machines as well as structures is below 100 % In machines, relative motion exists between its members, whereas same does not exist in case of structures ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Any point on a link connecting double slider crank chain will trace a Ellipse Straight line Parabola Circle Ellipse Straight line Parabola Circle ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The partial balancing of reciprocating parts in locomotives produces Swaying couple All of these Hammer blow Variation in tractive force along the line of stroke Swaying couple All of these Hammer blow Variation in tractive force along the line of stroke 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 forces are not dangerous at higher speeds Effects of unbalances are proportional to the square of the speed Effects of unbalances are directly proportional to the speed Unbalanced couples are caused only at higher speeds Unbalanced forces are not dangerous at higher speeds Effects of unbalances are proportional to the square of the speed Effects of unbalances are directly proportional to the speed Unbalanced couples are caused only at higher speeds ANSWER DOWNLOAD EXAMIANS APP
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