Search
.Management Sciences
A. Very high thermal conductivity
B. High co-efficient of expansion upto this temperature
C. High thermal diffusivity
D. Low refractoriness
Related Mcqs:
- Silicon carbide refractories have very low ___________________?
- A. Refractoriness (< 1700°C) B. Thermal conductivity C. Resistance to thermal shock D. None of these...
- Silica bricks are attacked by basic slags at high temperature. Which of the following is not used solely as a binding material ?
- A. Aluminium phosphate B. Water C. Lime D. Plaster of Paris...
- Firing temperature of magnesite bricks is about _____________ °C?
- A. 800-1000 B. 1000-1200 C. 1600-1800 D. 2400-2600...
- Dry mix hydraulic compositions of refractory aggregates with suitable bonding materials are called refractory_________________?
- A. Mortars B. Cements C. Castables D. None of these...
- Crushing strength of a refractory____________________?
- A. Increases with rise in service temperature B. Decreases with rise in service temperature C. Is unaffected with change in service temperature D. Decreases with increase in porosity...
Recent Comments