Question 1

How many specimens per sample are required for testing by ASTM C-704?

Options :

A : One

B : Two

C : Three

D : Four

Answer: B

Question 2

Gunning test panels are constructed with removable backs as required for

Options :

A : laboratory test

B : visual inspection of the castable

C : physical property test

D : None of the above

Answer: B

Question 3

A moldable refractory material that can be extruded and has a level of workability that permits it to be pounded into place to form a monolithic structure

Options :

A : Ramming mix

B : Plastic refractory

C : Monolithic refractory

D : None of the above

Answer: B

Question 4

The application of monolithic refractories by means of air placement guns is

Options :

A : gunning

B : placing

C : pouring

D : casting

Answer: A

Question 5

Refractories chemically and physically stable at

Options :

A : Low temperatures

B : Average temperatures

C : High temperatures

D : None of the above.

Answer: C

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