Author name: Admin

A. Anodising

B. Tempering

C. Carburising

D. Annealing

A. Can’t be used in the form of pressure sensitive tapes

B. Can’t join two dissimilar metals

C. Cure instantaneously after application on a surface

D. None of these

A. 0.01 to 0.10

B. 0.2 to 0.4

C. 0.5 to 0.7

D. 0.8 to 1.0

A. Emissivity independent of wavelength

B. Grey appearance to the eye

C. Zero reflectivity

D. Equal brightness in all directions

A. Brass

B. Bronze

C. German silver

D. Cast iron

A. Hardness & tensile strength

B. Carbon content

C. Iron content

D. Alloying elements content

A. Steam temperature & pressure

B. Steam output (tons/hr)

C. Heat transfer rate (kcal/hr)

D. Heat transfer area (m²)

A. Boiling

B. Forced convection in air

C. Free convection in air

D. Conduction in air

A. Petrol

B. LPG

C. Light hydrocarbon gases (e.g. butane or propane)

D. None of these

A. The movement of ions

B. The movement of molecules

C. Allowing electrons to flow through them from cathode to anode

D. Movement of electric charge through them