The value of the included angle for a V-belt is _________.

_________ is used only for the transmission of bending moment.

Calculate the force responsible for the shearing or crushing of a key, given that the radius of the shaft is 50 millimeters and the torsional moment transmitted by the shaft is 1000 newtons millimeter.

Calculate the maximum shear stress developed in a rectangular cross sectional beam having an average shear stress of 50 newtons per square meter.

The included angle in a British Standard Whitworth thread is __________.

In a full journal bearing, the angle of contact of the bearing with the journal is ________.

Calculate the bending stress induced in the shank of the bolt, given that the length of the bolt is 10 millimeters, Young's modulus of material of bolt is 2 x 105 newtons per square millimeter and the difference in height between the extreme corners of the nut is 3 millimeters.

The mean diameter of the coil of a spring is 10 millimeters and the diameter of the spring wire is 5 millimeters. Calculate the spring index.

Calculate the shear modulus in a material which undergoes a shear strain of 10 meters. The shear stress applied on the material is 20 newtons per square meter.

The modulus of elasticity of material A is 100 newtons per square meter and of material B is 200 newtons per square meter. Calculate the modular ratio between the two materials.

__________ is the value of ratio of the maximum shear stress with load acting parallel to the weld to the maximum shear stress when load acts perpendicular to the weld.