Theory of Machine Efficiency of a screw jack is given by tan (α + φ)/tanα tan (α - φ)/tanα tanα/tan (α - φ) tanα/tan (α +φ) tan (α + φ)/tanα tan (α - φ)/tanα tanα/tan (α - φ) tanα/tan (α +φ) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The danger of breakage and vibration is maximum Above the critical speed Below the critical speed Near the critical speed None of these Above the critical speed Below the critical speed Near the critical speed None of these ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Hammer blow Is the maximum vertical unbalanced force caused by the mass added to balance the reciprocating masses Varies inversely with the square of the speed Varies as the square root of the speed Is the maximum horizontal unbalanced force caused by the mass provided to balance the reciprocating masses. Is the maximum vertical unbalanced force caused by the mass added to balance the reciprocating masses Varies inversely with the square of the speed Varies as the square root of the speed Is the maximum horizontal unbalanced force caused by the mass provided to balance the reciprocating masses. ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a Hartnell governor, the compression of the spring is __________ the lift of the sleeve. None of these Equal to Less than Greater than None of these Equal to Less than Greater than ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Frequency of vibrations is usually expressed in None of these Number of cycles per hour Number of cycles per minute Number of cycles per second None of these Number of cycles per hour Number of cycles per minute Number of cycles per second ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The example of spherical pair is Ball and socket joint Lead screw of a lathe Ball bearing and roller bearing Bolt and nut Ball and socket joint Lead screw of a lathe Ball bearing and roller bearing Bolt and nut ANSWER DOWNLOAD EXAMIANS APP
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