R4RIN – MCQs, Mock Tests | Engineering Civil Engineering MCQS -Building Materials Section 4

Mastic asphalt is normally used for

1. sound insulation
2. water proofing
3. fire proofing
4. none to these.

✅ Correct Answer: 2

Lime stone is not a

1. sedimentary rock
2. stratified rock
3. aqueous rock
4. metamorphic rock.

✅ Correct Answer: 4

The size of modular bricks, is

1. 10 x 10 x 9 cm
2. 19 x 9 x 9 cm
3. 22.5 x 10 x 8.5 cm
4. 22.5 x 8.0 x 9 cm.

✅ Correct Answer: 2

A piece of timber whose thickness and width are respectively 5 cm and 10 cm is called

1. slate
2. plank
3. board
4. strip.

✅ Correct Answer: 4

Pig iron is manufactured from the ores by

1. dressing
2. calcination and roasting
3. smelting
4. all the above.

✅ Correct Answer: 4

Quick lime

1. generates heat when added to water
2. reacts with carbon dioxide
3. may be used for white-washing
4. all the above.

✅ Correct Answer: 4

Age of a tree may be ascertained by

1. radius of its stem
2. radius of its stem
3. number of branches
4. number of annual rings.

✅ Correct Answer: 4

The portion of a brick cut to form angles other than right angles in plan, is known as

1. queen closer
2. king closer
3. closer
4. squint brick.

✅ Correct Answer: 4

Pick up the correct statement from the following:

1. Slaked lime contains calcium hydroxide
2. Quick lime contains calcium oxide
3. Slaked lime may be obtained from quick lime
4. All the above.

✅ Correct Answer: 4

Plywood is obtained by gluing wooden sheets at

1. 100 to 150 N/cm2
2. 100 to 130°C
3. both (a) and (b)
4. Neither (a) nor (b).

✅ Correct Answer: 3

The low voltage porcelain is mainly used for

1. switch block
2. insulating tubes
3. lamp sockets
4. All of these.

✅ Correct Answer: 4

Putty is

1. made with finely powdered chalk and linseed oil
2. used for fixing glass panes
3. softened by a solution of pearl ash and quick-lime soaked in water
4. all of these.

✅ Correct Answer: 4

The initial setting time of hydraulic lime, is

1. 30 minutes
2. 60 minutes
3. 90 minutes
4. 120 minutes

✅ Correct Answer: 4

PVC stands for

1. plastic very compact
2. polythene vinyl chloride
3. polythene vinyl carbon
4. polythene vanadium carbide.

✅ Correct Answer: 2

Generally wooden moulds are made from

1. ply wood
2. shisham wood
3. deodar wood
4. teak wood

✅ Correct Answer: 2

Cement paints usually

1. contain hydrated lime
2. contain 5% to 10% colour pigments
3. are prepared with white cement
4. contain 5% sodium chloride

✅ Correct Answer: 4

The cement becomes unsound by the presence of excess

1. sulphur
2. magnesia
3. lime
4. All of these.

✅ Correct Answer: 4

The kiln which may work throughout the year, is

1. Clamp
2. Bull's kiln
3. Hoffman's kiln
4. none of these.

✅ Correct Answer: 3

The minimum compressive strength of 1st class bricks should be

1. 75 kg/cm2
2. 90 kg/cm2
3. 100 kg/cm2
4. 120 kg/cm2

✅ Correct Answer: 3

A volatile substance added to a paint to make its application easy and smooth, is known as

1. base
2. solvent
3. vehicle
4. none to these.

✅ Correct Answer: 2