If a square key and the shaft are to be of the same material and of equal strength, the length of key would be (d = dia. Of shaft)

Related MCQs

• A key and a shaft are made from the same material. The key is rectangular with a width of D/4 and a height of 3D/16. The shaft is under torsion only. The necessary length of the key for equal strength of the shaft and key will be
• A solid shaft and a hollow shaft are to be of equal strength in torsion. The hollow shaft is to be 10% larger in diameter than the solid shaft. The ratio of the weight of the hollow shaft will be (both shafts being made of same material)
• A solid shaft of 100 mm diameter transmits 100 HP at (450/?) r.p.m. The torque in kg-m on the shaft would be
• A cantilever beam of square section is subjected to a load W at the free end. If the length of the beam is increased and load reduced to half the deflection at the free end as compared to original deflection would be
• A column has its equivalent length equal to its length in case of
• If the shearing stress in a nut is equal to half the tensile stress in a bolt then the length of nut should be equal to
• Two plates are joined by a parallel fillet welds. The plates are subjected to a tensile load of 35000 kg. If the allowable shear stress for the weld material be 800 kg the minimum length of 15 mm weld required to resist this load would be
• The loss of strength in compression which occurs when there is a gain in strength in the tension due to overloading is
• A square key is
• When properly made, a butt weld has the strength equal to