The process of removal of scale formed during hot rolling of steel is termed as_________________?
		A. Descaling
B. Shot blasting
C. Pickling
D. Skimming
		A. Descaling
B. Shot blasting
C. Pickling
D. Skimming
		A. Very low which prevents their ignition by compression
B. Very high which prevents their ignition by compression
C. Zero
D. None of these
		A. Chimney
B. Induced draught fan
C. Forced draught fan
D. Steam jet arrangement
		A. Aluminium
B. Stainless steel
C. Brass
D. Copper
		A. Stiffness
B. Malleability
C. Creep resistance
D. Tensile strength
		A. Surface finish
B. Fatigue limit
C. Creep limit
D. Surface cleanliness
		A. Nodulising
B. Pelletising
C. Balling
D. Briquetting
		A. V2
B. 1/V2
C. 1/Vg
D. Vg
		A. Suppress martensite transformation
B. Enhance its working performance in sub zero atmosphere
C. Reduce the retained austenite in hardened steel
D. Induce temper brittleness after its hardening
		A. Suspended salt
B. Dissolved salt
C. Silica
D. Turbidity