Building Materials - Practice Test

[#96] The commonly used drying oil for oil paints, is

(A) Olive oil

(B) Linseed oil

(C) Kerosene oil

(D) Acetate of lead

Correct Answer

(B) Linseed oil

Explanation

Solution: Linseed oil is the commonly used drying oil for oil paints. It is extracted from the seeds of the flax plant. It polymerizes upon exposure to air, forming a tough, elastic film that binds the pigment particles together and provides protection to the painted surface.

[#97] Formula for quick lime, is

(A) CaCO 3

(B) Ca(OH) 2

(C) CO 3 CO 2

(D) None of these

Correct Answer

(A) CaCO 3

[#98] Plywood is normally available

(A) 1 mm thick

(B) 2 mm thick

(C) 2 to 3 mm thick

(D) 3 mm to 4 mm thick

Correct Answer

(D) 3 mm to 4 mm thick

[#99] Smith's test of stones is performed to find out

(A) The presence of soluble matter of stone

(B) The compressive strength of the stone

(C) The hardness of the stone

(D) The toughness of the stone

Correct Answer

(A) The presence of soluble matter of stone

[#100] Refractory bricks resist

(A) High temperature

(B) Chemical action

(C) Dampness

(D) All the above

Correct Answer

(A) High temperature

Building Materials - Study Mode

[#96] The commonly used drying oil for oil paints, is

Correct Answer

Explanation

[#97] Formula for quick lime, is

Correct Answer

[#98] Plywood is normally available

Correct Answer

[#99] Smith's test of stones is performed to find out

Correct Answer

[#100] Refractory bricks resist

Correct Answer