Chemical Engineering Basics

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

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

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

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

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

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

A. Conductor
B. Insulator
C. Semi-conductor
D. None of these

A. Wrought
B. Tool
C. Alloy
D. Plain carbon

A. Ore
B. Electrical power
C. Labour
D. Abundant water

A. 30°
B. 60°
C. 90°
D. 120°