Allowable stress in steel is less than

The approximate ratio of direct tensile strength to flexural strength is

A rigid prop is one which

For finding forces in the members of a truss by the graphical method. The force diagram is suggested by

A doubly reinforced beam is economical as compared to a singly reinforced beam , because

The shape of bending moment diagram over the length of a beam, having no external load is 

Separation of ingredients from concrete during transportation is known as

Stress is directly proportional to strain within the elastic limit is given by

The unit weight of RCC concrete is