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Current Affairs January 2024

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4

The minimum and the maximum number of members required to form a Private Limited Joint Stock Company are respectively

A. 7 and 30

B. 10 and 50

C. 2 and 50

D. 13 and 55

Correct Answer :

C. 2 and 50


Related Questions

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4

'Amortization' in respect of financial obligation of a company means the

A. Liquidation of financial obligations on instalment basis

B. Commitment of financial obligation on priority

C. Liquidation of all the obsolete equipments of the company

D. Modernisation of the plant equipments

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4

Most important property of steels for use in automobile bodies is the

A. Formability

B. Yield strength

C. Toughness

D. Resilience

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4

Out of the following, which will fracture most readity, when hit with a hard hammer?

A. Brass

B. Bronze

C. German silver

D. Cast iron

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4

Nusselt number is related to Grashoff number (Gr) in turbulent & laminar flow respectively, in respect of free convection over a vertical flat plate as

A. Gr0.25, Gr

B. Gr0.25, Gr0.33

C. Gr, Gr0.25

D. Gr0.33, Gr0.25

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4

Which of the following is an ore dressing operation?

A. Classification

B. Smelting

C. Roasting

D. None of these

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4

Secondary hardening in steels arises out of the

A. Precipitation of fine alloy carbides at high temperatures

B. Refinement of ferrite grain size by working

C. Decomposition of retained austenite upon heat treatment

D. Precipitation of complex inter-metallic upon heat treatment

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4

In a totally irreversible isothermal expansion process for an ideal gas, ΔE = 0, ΔH = 0. Then ΔQ and ΔS will be

A. ΔQ = 0, ΔS=0

B. ΔQ = 0, ΔS = +ve

C. ΔQ = 0, ΔS = -ve

D. ΔQ = +ve, ΔS= +ve

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4

The difference between gross & net calorific values of fuel is due to the

A. Sensible heat carried away by the flue gases

B. Heat carried away by the steam from the moisture content of the fuel

C. Heat lost by radiation

D. Heat carried away by steam from the combustion of hydrogen in the fuel

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4

Hydro-cyclone is a

A. Crusher

B. wet classifier

C. Dry classifier

D. Magnetic separator

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4

Gage pressure within a spherical droplet of a fluid is 'p'. What will be gage pressure within a bubble of the same size & of the same fluid?

A. p

B. 2 p

C. 0.5 p

D. 0.25 p

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4

If the head is doubled in & centrifugal pump, the power required will increase in the ratio of

A. 23

B. 23/2

C. 25/2

D. 21/3

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4

Which of the following is used to produce draught in the locomotive boilers?

A. Chimney

B. Induced draught fan

C. Forced draught fan

D. Steam jet arrangement

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4

The same volume of all gases is representative of their

A. Specific gravities

B. Densities

C. Gas characteristic constants

D. Molecular weights

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4

Absolute zero pressure can be attained at a temperature of

A. 0°C

B. 50°K

C. 0°R

D. None of these

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4

__________ is a special constituent of chlorophyll without which photosynthesis is not possible.

A. Calcium

B. Nitrogen

C. Phosphorous

D. Hydrogen

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4

The most suitable material of construction for a sewer to carry sewage under high pressure is

A. Asbestos cement

B. Steel

C. Cement concrete

D. Stoneware

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4

Which of the following hardness tests does not measure the indentation hardness of metals and alloys?

A. Vickers hardness test

B. Shore scleroscope test

C. Brinell hardness test

D. Rockwell hardness test

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4

Sudden fall of atmospheric pressure by a large amount is an indication of the

A. Rain

B. Cold wave

C. Storm

D. Fair weather

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4

Recrystallisation temperature of steel is __________ °C.

A. 50

B. 300

C. 500

D. 800

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The minimum carbon content in steel should be __________ percent for it to respond to a hardening treatment.

A. 0.2

B. 0.4

C. 0.6

D. 0.8

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4

What is the value of entropy at 273°K?

A. 0

B. 1

C.

D. None of these

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4

Biological shield in a nuclear reactor is generally provided to protect against the

A. α-rays

B. β-rays

C. Gamma rays & neutrons

D. Electrons

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4

Satellites burn off during re-entry to earth's atmosphere, because of the

A. Combustion with air

B. Gravitational pull by earth

C. Friction with earth's atmosphere

D. Loss in weight of the satellite

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4

Which of the following is not a dielectric material?

A. Cotton, silk and paper

B. Asbestos, glass, porcelain and mica

C. Rubber and polymeric resins

D. All refractory materials

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4

Mho's scale of hardness, which consists of 10 standard minerals is used for the measurement of __________ hardness.

A. Scratch

B. Indentation

C. Dynamic

D. Rebound

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4

The expected efficiency of a single riveted lap joint is of the order of 50%. If the thickness of the plate is increased four times, then the rivet diameter will have to be increased __________ times.

A. Two

B. Four

C. Six

D. Eight

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4

Powder metallurgy is used to produce

A. High precision components with complex cavities and sharp features

B. Components of large size

C. Porosity free components

D. Components of such alloys whose constituents do not form alloys readily

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4

__________ of austenite decreases the hardenability in steel.

A. Fine grains

B. Coarse grains

C. Homogeneity

D. Dissolved elements (except cobalt)

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4

Cold cracking in the heat affected zone of a high strength steel weld can take place because of the

A. Retained austenite

B. Martensite formation

C. Relatively high sulphur content in the base metal

D. Sufficient hydrogen present in the welding arc

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4

Broaching tools are usually made of

A. Cermets

B. High speed steel

C. Tungsten carbide

D. Stellite