Theory of Machine A body is said to be under forced vibrations, when No external force acts on a body, after giving it an initial displacement None of these A body vibrates under the influence of external force There is a reduction in amplitude after every cycle of vibration No external force acts on a body, after giving it an initial displacement None of these A body vibrates under the influence of external force There is a reduction in amplitude after every cycle of vibration ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The primary unbalanced force is maximum _________ in one revolution of the crank. Sixteen times Twice Four times Eight times Sixteen times Twice Four times Eight times ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine V-belts are usually used for Long drives None of these Long and short drives Short drives Long drives None of these Long and short drives Short drives ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a ball bearing, ball and bearing forms a Spherical pair Screw pair Rolling pair Turning pair Spherical pair Screw pair Rolling pair Turning pair ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the nature of contact between the elements of a pair is such that one element can turn about the other by screw threads, the pair is known as a Screw pair Sliding pair Spherical pair Turning pair Screw pair Sliding pair Spherical pair Turning pair ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The lower pairs are _________ pairs. Self-closed Force-closed Friction closed None of these Self-closed Force-closed Friction closed None of these ANSWER DOWNLOAD EXAMIANS APP