MCQOPTIONS
Bookmark
Saved Bookmarks
→
Chemical Engineering
→
Basic in Chemical Engineering
→
Super refractories' are made from pure..
1.
Super refractories' are made from pure
A.
carbides
B.
oxides
C.
borides
D.
nitrides
Answer» C. borides
Show Answer
Discussion
No Comment Found
Post Comment
Related MCQs
The linear thermal expansion of __________ bricks upto 1000 °C is very low of the order of ≤ 0.5 percent.
\'Super refractories\' are made from pure
Because of its very high refractoriness of the order of __________ °C, silicon carbide refractories are used in zinc smelting furnace, muffle furnace and for supporting the wares in tunnel kilns.
Silica bricks have low spalling resistance below 600°C, due to its
Cold crushing strength of fireclay bricks is about __________ kgf/cm 2 .
Refractoriness under load (RUL) of fireclay bricks (under a load of 2 kg/cm 2 ) is __________ °C.
Spinel', a refractory mineral is chemically represented as
Which one contains minimum percentage of SiO 2 ?
Highest melting (m.p = 3070°C) oxide refractory is
SiO 2 percentage in firebrick is about
Reply to Comment
×
Name
*
Email
*
Comment
*
Submit Reply