Which one of the following statements refers to the control of product quality ?

Evaluating the quality of the end product

Analysis of the information and data obtained from the field

Feedback of the production processes

Combining evaluation, analysis and feedback

The metal is sprayed in powder form on the surface of components

The metal is sprayed in powder form on to the preheated surfaces

Molten metal is sprayed on to the component surface by the gun

Tiny particles of molten metal is sprayed with the help of blowing compressed air

its shape and dimensions are within the limits

it appears to be very good

it is fit for use

the choice of material is right

Lay

Roughness

Waviness

Surface texture

Calorising

Sherardising

Chromising

Vitreous enamelling