A. 770
B. 570
C. 270
D. 70
Related Mcqs:
- A gas at 0°C is cooled at constant pressure until its volume becomes half the original volume. The temperature of the gas at this state will be_______________?
A. -136.5°C
B. – 136.5°K
C. -273°C
D. 0°K - Silica bricks are never used for lining the_________________?
A. Beehive coke ovens
B. By-product coke ovens
C. Dome of blast furnace stoves
D. Roof of open hearth furnace - In panel test for spalling resistance, the average face temperature of panel assembly is maintained at _____________ °C for 24 hours?
A. 700
B. 1000
C. 1600
D. 2000 - At what temperature, given mass of a gas that occupies a volume of 2 litres at N.T.P. will occupy a volume of 4 litres, if the pressure of the gas is kept constant ?
A. 273°C
B. 273°K
C. 100°C
D. 200°C - A gas at 0°C was subjected to constant pressure cooling until its volume became half the original volume. The temperature of the gas at this stage will be________________?
A. 0°C
B. 0°K
C. -136.5°C
D. -136.5°K - If a solution of eutectic composition is cooled, _______________ reaching the eutectic temperature ?
A. The solvent begins to freeze out even before
B. It will undergo no change until
C. It will not solidify even on
D. None of these - With increase in the porosity, thermal spalling resistance of fireclay brick_______________?
A. Increases
B. Decreases
C. Remain same
D. May increase or decrease - At a constant volume, for a fixed number of moles of a gas, the pressure of the gas increases with rise of temperature due to___________________?
A. Decrease in mean free path
B. Increased collision rate among molecules
C. Increase in molecular attraction
D. Increase in average molecular speed - Pure oxide refractories are generally monocrystalline in nature and are self bonded ______________ bricks are generally used as moderator in nuclear reactors?
A. Beryllia
B. Carborundum
C. Corundum
D. Thoria - Roof of a basic electric furnace is made of ______________ bricks?
A. Superduty fireclay
B. Silica
C. Chromite
D. None of these
