- (A) 1 kcal/hr.m.°C is equal to 1 BTU/hr. ft.°F
- (B) In steady state heat conduction, the only property of the substance which determines the temperature distribution, is the thermal conductivity
- (C) In unsteady state heat conduction, heat flows in the direction of temperature rise
- (D) In heat transfer by forced convection, Grashoff number is very important
Chemical Engineering Mcqs
- (A) Heat transfer from a hot body to cold body by the emission of heat waves is called radiation
- (B) Filmwise condensation takes place on non-wettable surfaces
- (C) The boiling point of a solution is affected by liquid head as well as boiling point elevation
- (D) None of these
- (A) Beehive coke ovens
- (B) By-product coke ovens
- (C) Dome of blast furnace stoves
- (D) Roof of open hearth furnace
- (A) High insulating properties
- (B) Low heat capacity
- (C) Low thermal conductivity
- (D) Greater strength
- (A) Fireclay
- (B) Silicon carbide
- (C) Corundum
- (D) Siliceous fireclay
- (A) Beryllia
- (B) Carborundum
- (C) Corundum
- (D) Thoria
- (A) Stable form of silica upto 870°C
- (B) Converted to Tridymite on firing between 870 to 1470°C
- (C) Transformed to Cristobalite on heating above 1470°C
- (D) All
- (A) Increases
- (B) Decreases
- (C) Remain same
- (D) May increase or decrease
- (A) 1520-1630
- (B) 1630-1670
- (C) > 1730
- (D) > 2000
- (A) Spalling resistance
- (B) Refractoriness
- (C) Refractoriness under load (RUL)
- (D) None of these
