Which of the following options are the correct characteristics of the oil-tempered wire?

What is the significance of the above given symbol in work study technique?

In radial tyres

The air gap between the central electrode and ground (or side) electrode of a spark plug is around

In a unit type body (frameless body) design, the sheet metal parts are welded together, forming a frame work to which outer skin is attached.

The portion of a crankshaft which rests on cylinder block is called main journal.

The coefficient of friction depends on

A beam is said to be of uniform strength, if

A rectangular bar of width b and height h is being used as a cantilever. The loading is in a plane parallel to the side b. The section modulus is

Center of gravity of a thin hollow cone lies on the axis at a height of

If is the shear force at a section of an I-joist, having web depth and moment of inertia about its neutral axis, the difference between the maximum and mean shear stresses in the web is,