Which of the following is the most widely used heat insulating material for pipelines carrying steam?

ar dolomite bricks followed by asbestos

ireclay refractory followed by aluminium sheet

otton followed by aluminium foil

5% magnesia cement and glass wool

Which of the following is the most widely used heat insulating materia

1.	Which of the following is the most widely used heat insulating material for pipelines carrying steam?
A.	ar dolomite bricks followed by asbestos
B.	ireclay refractory followed by aluminium sheet
C.	otton followed by aluminium foil
D.	5% magnesia cement and glass wool
Answer» E.

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Which of the following is the most widely used heat insulating material for pipelines carrying steam?

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