Chemical Engineering Mcqs

A form of stress corrosion failure termed as ‘season cracking’ is generally observed in __________________?

• (A)  Thermosetting polymers
• (B)  High carbon steels
• (C)  Brasses
• (D)  Borosilicate glasses

Answer

Submitted By :Ali Uppal

Velocity of a gas in sound is not proportional to (where, T = Absolute temperature of the gas. P = Absolute pressure of the gas. y = Ratio of specific heats (Cp/Cv) ρ = specific weight of the gas) ?

• (A)  √T
• (B)  1/√P
• (C)  √y
• (D)  1/√ρ

Answer

Submitted By :Ali Uppal

Hot & cold working of material causes its _______________ deformation?

• (A)  Visco-elastic
• (B)  Isotropic
• (C)  Elastic
• (D)  Plastic

Answer

Submitted By :Ali Uppal

Thermit welding is categorised as the ______________________ welding ?

• (A)  Forge
• (B)  Fusion
• (C)  Resistance
• (D)  Arc

Answer

Submitted By :Ali Uppal

Work hardenable alloy steel used to make the bucket wheel excavators, blades of bulldozers and other earth moving equipments contain iron, carbon and ___________________?

• (A)  Manganese
• (B)  Silicon
• (C)  Nickel
• (D)  Chromium

Answer

Submitted By :Ali Uppal

As per the Indian boiler regulation (IBR), the type of joint preferred for the circumferential joint is the _____________ joint ?

• (A)  Butt
• (B)  Lap
• (C)  Welded
• (D)  None of these

Answer

Submitted By :Ali Uppal

Often earing defects are found during deep drawing operation, because the __________________?

• (A)  Surface finish of the sheet is poor
• (B)  Sheet material has been given substantial spring back
• (C)  Starting sheet has planer anisotropy due to its texture
• (D)  Starting sheet has normal anisotropy due to its texture

Answer

Submitted By :Ali Uppal

Plants produce carbohydrates from the CO2 present in the atmosphere by_________________?

• (A)  Polymerisation
• (B)  Photochemical reaction
• (C)  Oxidation
• (D)  None of these

Answer

Submitted By :Ali Uppal

_______________ is not a case hardening process ?

• (A)  Carburising
• (B)  Nitriding
• (C)  Cyaniding
• (D)  Annealing

Answer

Submitted By :Ali Uppal

Calorific value of ____________________ are almost same?

• (A)  Lignite & anthracite coal
• (B)  Lignite & coal gas
• (C)  Petrol & diesel
• (D)  Coal gas & natural gas

Answer

Submitted By :Ali Uppal