Spalling of silica bricks occurs due to abrupt volume changes, when it is cooled below a temperature of ______________ °C?

Related Mcqs:

1 BTU/lb.←°F is equivalent to ____________ kcal/kg.°C?

A. 1 B. 2.42 C. 1.987 D. 4.97...

Chemically, mullite refractories is________________?

A. 3Al2O3.2SiO2 B. Al2O3 C. ZrSO4 D. ThO2...

Pick out the wrong statement?

A. The effect of pressure on heat capacity of gases at pressure above one atmosphere and above the critical temperature is negligible B. The value of Cp of gases increases with increase in pressure, above atmospheric pressure C. The value of Cp at critical temperature and pressure reaches infinity D. All A., B., and C....

The value of (Cp – Cv) for a real gas obeying Vander Wall’s equation is____________________?

A. R B. > R C. < R D. 0.5 R...

Which of the following gases will have the- highest kinetic energy per mole at the same pressure & temperature ?

A. Chlorine B. Nitrogen C. Ethane D. All the gases will have the same KE...