Which type of belt among the following will give maximum efficiency, when used?

__________ 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.

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.

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 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 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.

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

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

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

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.

_________ is used only for the transmission of bending moment.