Hollow saddle key is superior to flat saddle key as far as power transmitting capability is concerned.

Related MCQs

• Saddle key is more suitable than sunk key for heavy duty applications.
• The safe stress for a hollow steel column which carries an axial load of 2100 kN is 125 MN/m2. if the external diameter of the column is 30cm, what will be the internal diameter?
• The strength of hollow shaft is more than the strength of solid shaft of same weight.
• The stiffness of solid shaft is more than the stiffness of hollow shaft with same weight.
• Solid shaft is costlier than hollow shaft of same weight.
• Determine the length of kennedy key required to transmit 1200N-m and allowable shear in the key is 40N/mm². The diameter of shaft and width of key can be taken as 40mm and 10mm respectively.
• The main advantage of sunk key is that it is a            drive.
• Woodruff key permits            movement b/w shaft and the hub.
• Calculate the tension in the rope of pulley C. "The layout of a shaft supported on bearings at A & B is shown. Power is supplied by means of a vertical belt on pulley B which is then transmitted to pulley C carrying a horizontal belt. The angle of wrap is 180’ and coefficient of friction is 0.3. Maximum permissible tension in the rope is 3kN. The radius of pulley at B & C is 300mm and 150mm"
• If bending moment on point B in horizontal plate is M and in vertical plane is m, then the net bending moment at point B is? "The layout of a shaft supported on bearings at A & B is shown. Power is supplied by means of a vertical belt on pulley B which is then transmitted to pulley C carrying a horizontal belt. The angle of wrap is 180’ and coefficient of friction is 0.3. Maximum permissible tension in the rope is 3kN. The radius of pulley at B & C is 300mm and 150mm"