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Current Affairs January 2024

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4

Pick up the synthetic resin from the following:

A. Urea resin

B. Phenolic resin

C. Resorcinol resin

D. All of these

Correct Answer :

D. All of these


Related Questions

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4

Pick up the plutonic rock from the following:

A. Granite

B. Dolerite

C. Basalt

D. All the above

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4

Which of the following timbers is suitable for making sports goods?

A. Mulberry

B. Mahogany

C. Sal

D. Deodar

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4

Gneiss is obtained from

A. Igneous rocks

B. Metamorphic rocks

C. Sedimentary rocks

D. Sedimentary metamorphic rocks

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4

The compound of Portland cement which contributes to the strength after two to three years is

A. Tri-calcium silicate

B. Di-calcium silicate

C. Tri-calcium aluminate

D. Tetra-calcium alumino ferrite

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4

Pick up the volcanic rock from the following:

A. Granite

B. Dolerite

C. Basalt

D. All the above

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4

For lime concrete,

A. Slump is 50 to 75 mm

B. Flexural strength at 90 days is 0.2 N/mm2

C. Compressive strength at 90 days is 1.5 N/mm2

D. All the above

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4

Which of the following stone is best suited for construction of piers and abutments of a railway bridge?

A. Granite

B. Sand stone

C. Lime stone

D. Quartzite

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4

A good brick earth should contain:

A. About 20% to 30% of alumina

B. About 50% to 60% of silica

C. Not more than 5% of lime

D. All the above

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4

Due to attack of dry rot, the timber

A. Cracks

B. Shrinks

C. Reduces to powder

D. None of these

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4

Pick up the correct statement from the following:

A. Alexander Parkes, a Scottish chemist prepared a hard material by mixing camphor and alcohol with nitro cellulose and called it, as Parkesite

B. Dr. L. Bakeland, a Belgian scientist prepared a product known as Bakelite

C. Pollark, an Austrian scientist prepared a substance from urea and formaldehyde and called it Plastic

D. All the above

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4

The harmonious mixing of the clay ingredients, is known as

A. Weathering

B. Blending

C. Tempering

D. None of these

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4

During smelting process, the combination of fuel in the furnace

A. Forms carbon dioxide

B. Carbon dioxide with carbon forms carbon mono-oxide

C. Carbon mono-oxide reacts with Fe2O3 to form iron and liberates CO2

D. All the above

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4

Bitumen felt

A. Is used as water proofing material

B. Is used as damp proofing material

C. Is made from bitumen and hessian fibres

D. All the above

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4

The method of addition polymerization is used for obtaining:

A. Polystyrene

B. Polypropylene

C. Polyvinylchloride

D. All of these

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4

Oil varnish generally consists of

A. Synthetic resin and spirit

B. Oil, wax and resin

C. Resin, oil and turpentine

D. Spirit, oil and wax

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4

The plastics prepared from Vinyl resin are

A. Odourless

B. Non-toxic

C. Transparent

D. All of these

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4

The rocks having alumina or clay as their major constituents are known as

A. Siliceous rocks

B. Argillaceous rocks

C. Calcareous rocks

D. Sedimentary rocks

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4

The type of bond provided in brick masonry for carrying heavy loads is

A. Single Flemish bond

B. Double Flemish bond

C. English bond

D. Zigzag bond

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4

The constituent of cement which is responsible for all the undesirable properties of cement is

A. Di-calcium silicate

B. Tri-calcium silicate

C. Tri-calcium aluminate

D. Tetra calcium alumino ferrite

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4

Minimum of 40% of iron, is available in

A. Magnetite

B. Red haematite

C. Limonite

D. Black band

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4

A badly mixed cement concrete results in

A. Segregation

B. Bleeding

C. Honey combing

D. None of these

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4

In the cement the compound quickest to react with water, is

A. Tri-calcium aluminate

B. Tetra-calcium alumino-ferrite

C. Tri-calcium silicate

D. Di-calcium silicate

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4

The filler used in plastic bitumen, is

A. Shale powder

B. Talc powder

C. Asbestos powder

D. Plastic powder

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4

Assertion A : Pure lime takes a long time to develop adequate strength. Reason R : Pure lime has slow hardening characteristics. Select your answer according to the coding system given below:

A. Both A and R is true and R is correct explanation of A

B. Both A and R is true and R is not a correct explanation of A

C. A is true but R is false

D. A is false but R is true

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4

The lime which contains high percentage of calcium oxide, is generally called

A. Fat lime

B. Rich lime

C. White lime

D. None of these

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4

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

A. Slate

B. Plank

C. Board

D. Strip

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4

Mastic asphalt is normally used for

A. Sound insulation

B. Water proofing

C. Fire proofing

D. None to these

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4

Pick up the correct statement from the following:

A. Acid test is done to find out the weathering quality of stones

B. Attrition test is done to find out the rate of wear of stones which are used in road construction

C. Crushing test is done to find out the compressive strength of the stone

D. All the above

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4

The slag which floats on the surface of the molten iron generally contains

A. Lime (CaO) 45%

B. Silica (SiO2) 35%

C. Alumina (Al2O3) 12% and MgO, CaSO4, KMnO2 and FeO 8%

D. All the above

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4

The initial setting time for ordinary Portland cement as per IS specifications should not be less than

A. 10 minutes

B. 30 minutes

C. 60 minutes

D. 600 minute