R4RIN – MCQs, Mock Tests | Biotechnology Biotechnology MCQ set-4

What should be observed when a brick is broken?

1. Parallel strata
2. Homogeneous surface
3. Pores
4. Brown colour

✅ Correct Answer: 2

Which of the following ranges of dimensions of a good quality brick is correct?

1. Length: 368-392cm
2. Width: 180-210cm
3. Height: 180-210cm
4. Weight: 25-30N

✅ Correct Answer: 1

Unburnt bricks are also called:

1. Dry bricks
2. Clayey bricks
3. Kucha bricks
4. Clamp bricks

✅ Correct Answer: 3

Burnt bricks can be further classified into how many types?

1. 2
2. 4
3. 3
4. 5

✅ Correct Answer: 2

First class bricks are used for:

1. Brick ballast in R.C.C
2. Boundary walls
3. Low height walls
4. Pavements

✅ Correct Answer: 4

Which of the following is not a feature of second class bricks?

1. Have small irregularities
2. Water absorption is between 20-25%
3. Rectangular in shape
4. Free from cracks

✅ Correct Answer: 2

What is the speciality of FALG bricks?

1. Are composed of agricultural waste
2. Round in shape
3. Economic alternative to clay bricks
4. Widely used in masonry work

✅ Correct Answer: 3

Which of the following bricks types use the least amount of clay?

1. Hollow bricks
2. Coping bricks
3. Channel bricks
4. Perforated bricks

✅ Correct Answer: 4

Which of the following type of bricks is made for jambs of doors and windows?

1. Cant bricks
2. Arch bricks
3. Lintel bricks
4. Hinged bricks

✅ Correct Answer: 1

What is the problem with using flyash bricks?

1. Efflorescence
2. Costly
3. Expand
4. Not sound proof

✅ Correct Answer: 3

In absorption test on brick, how many hours it has to be soaked in cold water?

1. 19 hours
2. 5 hours
3. 6 hours
4. 24 hours

✅ Correct Answer: 4

How is the hardness of brick tested?

1. Using finger nail
2. Using hardness apparatus
3. Using hammer
4. Using chisel

✅ Correct Answer: 1

What is the maximum permissible tolerance for length and width respectively?

1. ± 3mm and ± 6mm
2. ± 6mm and ± 3mm
3. ± 3cm and ± 6cm
4. ± 6cm and ± 3cm

✅ Correct Answer: 2

What should be observed ideally when two bricks are struck together?

1. Dull sound
2. Sides shatter
3. Clear ringing sound
4. Brick breaks

✅ Correct Answer: 3

When observed efflorescence is more than 10% but less than 50% of the exposed area, it is:

1. Moderate efflorescence
2. Serious efflorescence
3. Heavy efflorescence
4. Light efflorescence

✅ Correct Answer: 1

How is the structure of brick tested?

1. Powdered and tested
2. Immersed in water and dried.
3. Rubbed against another brick
4. Broken and examined

✅ Correct Answer: 4

Creep test is carried out in accordance with:

1. IS 1528
2. IS 5688
3. IS 3495
4. IS 4568

✅ Correct Answer: 1

Quarry tile is also called:

1. Granite tile
2. Unglazed ceramic tile
3. Stone tile
4. Workshop tiles

✅ Correct Answer: 2

Which tile is the most versatile?

1. Porcelain
2. Shale
3. Slate
4. Granite

✅ Correct Answer: 3

_________ is used for skirting around bathtubs and mosaics?

1. Sandstone
2. Travertine
3. Granite
4. Onyx

✅ Correct Answer: 4

Drain tiles are suitable for laying in waterlogged areas because:

1. Porous nature
2. Waterproof
3. Economic
4. Easy installation

✅ Correct Answer: 1

Which type of tile is suitable for air-conditioned rooms, gymnasiums and skating rinks?

1. Wood tiles
2. Cork tiles
3. Ceramic tiles
4. Concrete tiles

✅ Correct Answer: 1

How many layers is the encaustic tile made up of?

1. 2
2. 4
3. 3
4. 1

✅ Correct Answer: 3

The lower tile in Allahabad tiles is:

1. Round
2. Flat
3. Rectangular
4. Curved

✅ Correct Answer: 2

How many Mangalore tiles are required to cover 1 square metre of roof?

1. 20
2. 18
3. 10
4. 16

✅ Correct Answer: 4

Which IS code gives classifications of ceramic tile?

1. IS 13712
2. IS 13630
3. IS 2248
4. IS 654

✅ Correct Answer: 1

Soil-cement blocks help in reducing the amount of:

1. Sand
2. Cement
3. Water
4. Mortar

✅ Correct Answer: 2

Stone blocks help in saving materials by reducing wall thickness from:

1. 30-20mm
2. 20-10cm
3. 20-10mm
4. 30-20cm

✅ Correct Answer: 4

FRP stands for:

1. Fibre Reinforced Polymer
2. Fully Reinforced Polymer
3. Fire Resistant Polymer
4. Fibre Reconditioned Polymer

✅ Correct Answer: 1

In ___________ cement mortar is reinforced with wire meshes.

1. Fibre Reinforced Cement
2. Wire Reinforced Cement
3. Ferro Cement
4. Mesh Mortar

✅ Correct Answer: 3

Fibre Reinforced Concrete (FRC) is used in:

1. Pavements
2. Foundation
3. Slab
4. Beam

✅ Correct Answer: 1

Concrete hollow bricks have the following characteristic:

1. Less thermal insulation
2. Costly
3. Fast construction
4. Decrease floor area

✅ Correct Answer: 3

___________ are widely used in rural areas for construction of walls?

1. Red bricks
2. Stabilised mud blocks
3. Lime based bricks
4. Hollow bricks

✅ Correct Answer: 2

Recycling steel reduces:

1. Energy use by 75%
2. Energy use by 50%
3. Energy use by 35%
4. Energy use by 20%

✅ Correct Answer: 1

Fluorogypsum, used in super sulphated cement or as binding agents, is a waste product of manufacture of:

1. Fluorine
2. Thermal power
3. Hydrofluoric acid
4. Phosphoric acid

✅ Correct Answer: 3

Which of the below roofing materials is most cost effective?

1. Asphalt
2. Plastic
3. Rubber
4. Metal

✅ Correct Answer: 4

Which of the below adhesive is not attacked by water?

1. Starch glue
2. Albumin glue
3. Vegetable glue
4. Rubber glue

✅ Correct Answer: 2

The process of applying an adhesive is:

1. Speedy
2. Slow
3. Costly
4. Cumbersome

✅ Correct Answer: 1

Nitrocellulose glue is prepared from:

1. Pyridine
2. Benzene
3. Pyroxylin
4. Resin

✅ Correct Answer: 3

Which of the following glues is used to join light metals?

1. Metal glue
2. Cycle weld
3. Araldite glue
4. Special glue

✅ Correct Answer: 3

Epoxy adhesives are used in the manufacturing of:

1. Glass
2. Fabric
3. Plywood
4. Plastic

✅ Correct Answer: 3

Which IS code gives details about tile adhesives?

1. IS 14458
2. IS 15477
3. IS 15478
4. IS 14557

✅ Correct Answer: 2

Which of the below glue can be made plastic again by re-heating?

1. Thermo-setting
2. Rubber glue
3. Animal protein glue
4. Thermo-plastic

✅ Correct Answer: 4

Which glue can bond a metal to wood?

1. Contact cement
2. Super glue
3. PVC cement
4. Gorilla glue

✅ Correct Answer: 1

Gorilla glue is made up of:

1. Resin
2. Epoxy
3. Polyurethane
4. Animal protein

✅ Correct Answer: 3

The word adhesive has its origin from:

1. Greek Adhaerere
2. Latin Adherae
3. Greek Adherae
4. Latin Adhaerere

✅ Correct Answer: 4

Vegetable glue is used for:

1. Labelling
2. Joining glass
3. Plastic adhesion
4. Plywood manufacture

✅ Correct Answer: 1

Modifying properties of PVC is called:

1. Reformation
2. Recasting
3. Compounding
4. Curing

✅ Correct Answer: 3

PVC is widely used to make pipes because:

1. Cost effective
2. Does not react to chemicals
3. Easily available
4. Easy to transport

✅ Correct Answer: 2

In how many forms does PVC come?

1. 2
2. 3
3. 4
4. 5

✅ Correct Answer: 1