Machine Design Which of the following statement is correct regarding power screws? If the friction angle is less than the helix angle of the screw, then the efficiency will be more than 50% The efficiency of Acme (trapezoidal) thread is less than that of a square thread Both (A) and (B) The efficiency of a self locking screw can not be more than 50% If the friction angle is less than the helix angle of the screw, then the efficiency will be more than 50% The efficiency of Acme (trapezoidal) thread is less than that of a square thread Both (A) and (B) The efficiency of a self locking screw can not be more than 50% ANSWER DOWNLOAD EXAMIANS APP
Machine Design Wahl's stress factor __________ very rapidly as the spring index decreases. Increases None of these Decreases Remain same Increases None of these Decreases Remain same ANSWER DOWNLOAD EXAMIANS APP
Machine Design The centrifugal tension in the belt Decreases the power transmitted Has no effect on the power transmitted Increases the power transmitted Is equal to maximum tension on the belt Decreases the power transmitted Has no effect on the power transmitted Increases the power transmitted Is equal to maximum tension on the belt ANSWER DOWNLOAD EXAMIANS APP
Machine Design Lewis equation in gears is used to find the Compressive stress in bending Shear stress Tensile stress in bending Fatigue stress Compressive stress in bending Shear stress Tensile stress in bending Fatigue stress ANSWER DOWNLOAD EXAMIANS APP
Machine Design The endurance limit in shear of carbon steel can be obtained by multiplying the endurance limit in flexure by a factor of 0.75 0.65 0.45 0.55 0.75 0.65 0.45 0.55 ANSWER DOWNLOAD EXAMIANS APP
Machine Design The design of pin of a rocker arm of an I.C. engine is based on All of these Shearing failure Bending failure Bearing failure All of these Shearing failure Bending failure Bearing failure ANSWER DOWNLOAD EXAMIANS APP
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