Theory of Machine Which of the following statements regarding laws governing the friction between dry surfaces are correct? The friction force is dependent on the materials of the contact surfaces. The friction force is directly proportional to the normal force. The friction force is independent of me area of contact. All of these The friction force is dependent on the materials of the contact surfaces. The friction force is directly proportional to the normal force. The friction force is independent of me area of contact. All of these ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a steam engine, the distance by which the outer edge of the D-slide valve overlaps the steam port is called Lead Exhaust lap Steam lap None of these Lead Exhaust lap Steam lap None of these ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When a body moves with simple harmonic motion, the product of its periodic time and frequency is equal to Zero One π π/2 Zero One π π/2 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The critical speed of a shaft with a disc supported in between is equal to the natural frequency of the system in Torsional vibrations All of these Longitudinal vibrations Transverse vibrations Torsional vibrations All of these Longitudinal vibrations Transverse vibrations ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The Ackermann steering mechanism is preferred to the Davis type in automobiles because The former is most rigid The former is having turning pair The former is most economical The former is mathematically accurate The former is most rigid The former is having turning pair The former is most economical The former is mathematically accurate 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
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