Chemical Engineering MCQs

A. (r2 – r1)/r1. r2
B. R1. r2/(r2 – r1)
C. (r2 + r1)/r1. r2
D. R1. r2/(r2 + r1)

A. Machinability
B. Toughness
C. Internal stress level
D. Softness

A. Intensifies deterioration
B. Changes the composition of the metal
C. Inhibits further deterioration
D. None of these

A. Frequency
B. Amplitude
C. Damping
D. None of these

A. Viscous force
B. Gravity force
C. Hydrostatic force
D. Surface tension force

A. Retained austenite
B. Martensite formation
C. Relatively high sulphur content in the base metal
D. Sufficient hydrogen present in the welding arc

A. Steel plant
B. Textile factory
C. Petroleum refinery
D. Coke oven battery

A. More
B. Less
C. Same
D. More but less than the diameter of bolt

A. High precision components with complex cavities and sharp features
B. Components of large size
C. Porosity free components
D. Components of such alloys whose constituents do not form alloys readily

A. Hardness & tensile strength
B. Carbon content
C. Iron content
D. Alloying elements content