Theory of Machine A simple spring-mass vibrating system has a natural frequency of fn. If the spring stiffness is halved and the mass is doubled, then the natural frequency will become 4 fn fn/2 2 fn 8 fn 4 fn fn/2 2 fn 8 fn ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a steam engine, the earlier cut-off with a simple slide valve may be obtained by increasing the steam lap and the angle of advance of the eccentric but keeping constant the travel and lead of the valve, this method will Reduce length of effective stroke of piston Cause withdrawing or throttling of steam All of the listed here Reduce maximum opening of port to steam Reduce length of effective stroke of piston Cause withdrawing or throttling of steam All of the listed here Reduce maximum opening of port to steam ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Elements of pairs held together mechanically is known as Rolling pair Open pair Closed pair Mechanical pair Rolling pair Open pair Closed pair Mechanical pair ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The frictional torque transmitted by a disc or plate clutch is same as that of Flat collar bearing Flat pivot bearing Truncated conical pivot bearing Conical pivot bearing Flat collar bearing Flat pivot bearing Truncated conical pivot bearing Conical pivot bearing ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The two elements of a pair are said to form a higher pair, when they Permit relative motion Have a surface contact when in motion Have a line or point contact when in motion Are kept in contact by the action of external forces, when in motion Permit relative motion Have a surface contact when in motion Have a line or point contact when in motion Are kept in contact by the action of external forces, when in motion ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Instantaneous center of rotation of a link in a four bar mechanism lies on Left side pivot of this link A point obtained by intersection on extending adjoining links Can’t occur Right side pivot of this link Left side pivot of this link A point obtained by intersection on extending adjoining links Can’t occur Right side pivot of this link ANSWER DOWNLOAD EXAMIANS APP
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