Chemical Engineering - Refractory Technology

11.
Cold crushing strength of refractories depends upon its
composition
texture
firing temperature
all (a), (b) and (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.

12.
Tar bonded dolomite bricks
are stored under controlled temperature & humidity to avoid hydration.
are used in outer lining of L.D. converters.
have poorer hydration resistance than pitch bonded bricks.
all (a), (b) and (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.

13.
Electrical resistor bars are made of
silicon carbide
alumina
zirconia
graphite
Answer: Option
Explanation:
No answer description is available. Let's discuss.

14.
Which is not an alumino-silicate refractory?
Fireclay bricks.
Mullite bricks.
Tar dolomite bricks.
High alumina bricks.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

15.
Periclase refractory contains mainly
CaO
MgO
Al2O3
SiO2
Answer: Option
Explanation:
No answer description is available. Let's discuss.