Question 1

Colour coding does not require for anchor alloy of

Options :

A : carbon steel

B : SS304

C : SS310

D : None of the above

Answer: A

Question 2

As per ASTM C- 704, for the erosion tests, silicon carbide grit to be used by

Options :

A : one time

B : two time

C : three time

D : none of the above

Answer: A

Question 3

Refractories chemically and physically stable at

Options :

A : Low temperatures

B : Average temperatures

C : High temperatures

D : None of the above.

Answer: C

Question 4

Throughout a period of at least 24 hours, test specimens for air-setting, phosphate-bonded castable refractories are:

Options :

A : air cured, covered.

B : heat cured, uncovered.

C : air cured, uncovered.

D : heat cured, covered.

Answer: C

Question 5

The colour of stripe for 304L alloy material of metallic anchor is

Options :

A : 1 solid black

B : 2 solid black

C : 1 solid grey

D : None of the above

Answer: B

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