A ring tensile test using a split disc fixture was developed and used to evaluate tensile properties of a low-pressure plasma-deposited nickel-base superalloy from 25 to 1010° C.

A data acquisition system capable of digitally recording and storing load and deflection data at least 10 times per second (i.e., a sampling frequency of 10 Hz is suitable.

Lamb waves are similar to longitudinal waves, with compression and rarefaction, but y are bounded by sheet or plate surface causing a wave-guide effect.

Dye penetrant test does not require any skilled labour. This method only detects surface discontinuities and this test needs to be observed with naked eyes or with a low magnifying glass.

The shape of specimen used in compression test is Cube and cylinder.

The levelling operation that removes humps and hollows and give a true, uniform concrete surface is called Screeding.

Creep test is a type of destructive test. It is defined as slow plastic deformation at high temperatures for a longer time under constant stresses. Creep occurs at room temperature and at high temperatures.

The Brinell method applies a predetermined test load (F) to a carbide ball of fixed diameter (D) which is held for a predetermined time period and n removed.

The construction joints in cement concrete should not be provided at corners.

fr = PD/2t where P = hydrostatic pressure, D= average diameter of ring, t = time.