Machine Design The efficiency of a square threaded screw is maximum if the helix angle is equal to(Where φ = Angle of friction) 45° + φ/2 90° - φ 45° - φ/2 45° - φ 45° + φ/2 90° - φ 45° - φ/2 45° - φ ANSWER DOWNLOAD EXAMIANS APP
Machine Design The piston rod of a steam engine is usually connected to the cross-head by means of Cotter joint Knuckle joint Bolted joint Universal joint Cotter joint Knuckle joint Bolted joint Universal joint ANSWER DOWNLOAD EXAMIANS APP
Machine Design Eye bolts are used for Transmission of power Foundation purposes Lifting and transportation of machines and cubicles Absorbing shock and vibrations Transmission of power Foundation purposes Lifting and transportation of machines and cubicles Absorbing shock and vibrations ANSWER DOWNLOAD EXAMIANS APP
Machine Design The bending moment ‘M’ and a torque ‘T’ is applied on a solid circular shaft. If the maximum bending stress equals to maximum shear stress developed, then ‘M’ is equal to 1 T T/2 4 T 2 T 1 T T/2 4 T 2 T ANSWER DOWNLOAD EXAMIANS APP
Machine Design When the material of key and shaft is same, and the width of key is one-fourth of the diameter of shaft (d), then length of key will be 1.2 d 0.8 d 1.8 d 1.57 d 1.2 d 0.8 d 1.8 d 1.57 d ANSWER DOWNLOAD EXAMIANS APP
Machine Design A saddle key __________ power through frictional resistance only. Either A or B None of these Does not transmit Transmits Either A or B None of these Does not transmit Transmits ANSWER DOWNLOAD EXAMIANS APP
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