Which of the following heat treatment processes is usually applied to castings ?

A. Stretchability
B. Drawability
C. Bendability
D. None of these

A. PCl5
B. Quick lime
C. CaCl2
D. Concentrated H2SO4

A. High brittleness
B. Higher tendency to distort
C. High ductility
D. None of these

A. Borosilicate glass
B. Silica glass
C. Soda lime glass
D. None of these

A. Its higher boiling point (290°C) increases its heat carrying capacity
B. Comparatively less weight of coolant is required
C. Smaller radiator can be used
D. All a, b & c

A. SiO2
B. FeO
C. MgO
D. CaO