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Categories >> Sciences >> Chemistry >> General Chemistry
 
 


 

 
 Organic Chemistry interview questions  Organic Chemistry Interview Questions (222)
 Inorganic Chemistry interview questions  Inorganic Chemistry Interview Questions (96)
 Analytical Chemistry interview questions  Analytical Chemistry Interview Questions (846)
 Physical Chemistry interview questions  Physical Chemistry Interview Questions (57)
 General Chemistry interview questions  General Chemistry Interview Questions (283)
 Chemistry AllOther interview questions  Chemistry AllOther Interview Questions (70)
Question
How is cement manufactured ?
 Question Submitted By :: General-Chemistry
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
By heating together clay and limestone and powdering the
resulting mass.
 
Is This Answer Correct ?    10 Yes 2 No
Guest
 
Answer
# 2
Chemicaly cement is Cao. Hence the major ingadient used is
lime stone(almost 80-90%). Lime stone & clays are heated
gradualy to 1500 deg.C to dehydrate first and then it gets
calcined at the peack temp.At this temp. due to fusion lime
converts in CLINKERs or cement in hard stone form.
Subsiquently it is cooled down.Clinkers are further grind
with other grinding aids to very fine powder form.This
finished good is sold in market in bags or in bulker as
ORDINARY PORTLAND CEMENT or OPC.
 
Is This Answer Correct ?    10 Yes 3 No
Vinayak
 
 
 
Answer
# 3
cement is a type of hard clay 
Is This Answer Correct ?    1 Yes 4 No
Vijay
 

 
 
 
Other General Chemistry Interview Questions
 
  Question Asked @ Answers
 
What is Valency ?   1
Why is sodium preserved in kerosene oil ?   3
How many elements have been discovered on the Periodic Table? ESRI 10
Why are wires used to carry electricity ?   1
What is the octane number range of te petrol used in India ? 1)90-95 2)90-99 3)80-90 Indian-Railways 8
Why do woolen clothes keep us warm in winter ?   11
What is Nutralication ?   1
Which metal is used for coating the backs of the mirrors ?   2
What is Liquation ?   1
Why would we all suffocate, if all the green plants were killed ?   1
Which gas is used in hospitals for the artificial respiration ?   3
Why is radiator used in a motor-ear ?   1
 
For more General Chemistry Interview Questions Click Here 
 
 
 
 
 


   
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