Engineering MCQs

A. Cobalt, chromium & tungsten

B. Cobalt, chromium & nickel

C. Molybdenun, tungsten & chromium

D. Cobalt, zirconium & molybdenum

A. Sinter

B. Coke

C. Iron ore

D. Limestone

A. Increases

B. Decreases

C. Shows inversion of solubility

D. None of these

A. Precipitation of sulphur takes place

B. H₂SO₃ is formed

C. Oleum is formed

D. None of these

A. Degradation of steel by corrosion

B. Failure of steel structure by overstress-ing

C. Return of sharp yield point in temper rolled low carbon sheet after a period of time

D. Decarburisation of steel by overheating

A. Conductivity

B. Diffusivity

C. Inertia

D. All of the above

A. High brittleness

B. Higher tendency to distort

C. High ductility

D. None of these

A. Drain out water and sludge from the boiler during repair

B. Put off fire in the furnace when water level in the boiler falls to unsafe limit

C. Guard the boiler in case of abnormal rise in steam pressure

D. All of the above

A. Viscous force is larger than the inertia force

B. Inertia force is larger than the viscous force

C. Inertia force is larger than the surface tension force

D. Inertia force is larger than the gravitational force

A. Film

B. Nucleate

C. Transition

D. All of the above