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Current Affairs January 2024

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Depreciation of machines fails under the indirect expenses head. As per income tax regulations, it is calculated by the __________ method.

A. Diminishing balance

B. Sinking fund

C. Multiple straight line

D. Sum of the years digit

Correct Answer :

A. Diminishing balance


Related Questions

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Ferromagnetic materials owe their properties to __________ inner sub-shells.

A. Completely filled

B. Partially filled

C. Equally filled

D. Vacant

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Blasting of tri-nitro-toluene (TNT) is done by mixing it with ammonium

A. Nitrate

B. Sulphate

C. Carbonate

D. Chloride

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Steel is welded using the __________ flame.

A. Carburising

B. Neutral

C. Oxidising

D. All (A), (B) & (C)

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__________ circuit is most commonly used to measure strain with the help of a strain gauge.

A. Ballast

B. Voltage balancing potentiometric

C. Simple current sensitive

D. None of these

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With increase in temperature, the electrical conductivity of a __________ decreases.

A. Semi-conductor

B. Metal or alloy

C. Dielectric

D. None of these

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Plasma is

A. A high temperature neutral gas

B. Nothing but ionised gas

C. A source of steady and highest controllable pressure

D. Formed at very low temperature

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Most of the phosphorous present in the blast furnace burden enters into

A. Hot metal

B. Flue gases

C. Slag

D. Refractory lining

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__________ has a negative co-efficient of linear expansion.

A. Iron

B. Copper

C. Rubber

D. Nickel

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Annealing of cast iron

A. Softens it to facilitate machining

B. Decreases the free carbon

C. Increases the strength

D. None of these

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Moist air is cooled along the line of constant __________ , when it is passed over a cold & dry cooling coil, such that no condensation occurs?

A. Enthalpy

B. Relative humidity

C. Wet bulb temperature

D. Dew point temperature

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Which of the following low melting alloy containing bismuth and lead is used for electric fuse?

A. Wood's metal

B. Babbitt metal

C. Monel metal

D. Duralumin

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Material of construction of foundry crucible is

A. Lead

B. Stainless steel

C. Graphite

D. Cast iron

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The usual energy consumption in electric arc furnace steel making is __________ KWh/ton of steel.

A. 60 - 100

B. 400 - 700

C. 1200 -1500

D. 2000 - 2300

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Isotropic materials have the same __________ in all directions.

A. Induced stresses

B. Density

C. Elastic properties

D. Thermal properties

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Pick out the wrong statement.

A. Ductile fracture of a stressed material, which exhibits a large plastic deformation is commonly caused by the formation and coalescence of voids in the necked region

B. Brittle fracture is caused by the propagation of pre-existing cracks in the material and involves minimum plastic deformation

C. Fatigue fracture of a material is always brittle in nature and takes place due to the existence of line imperfections

D. Brittle materials are generally tested in tension

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Maximum permissible sulphur content in steel is __________ percent.

A. 0.015

B. 0.055

C. 0.505

D. 0.805

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Exposure to __________ accelerates the degradation of plastics.

A. Ultraviolet radiation

B. High atmospheric temperature

C. High ambient temperature

D. Damp atmosphere

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Angular displacement can be measured suitably by a

A. Shaft encoder

B. Linear variable differential transducer (LVDT)

C. Stroboscope

D. Tachometer

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On oscilloscope screen for dynamic measurement, lissajous diagram is normally used to determine the __________ of the input signal.

A. Frequency

B. Amplitude

C. Damping

D. None of these

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Which of the following is an example of stress corrosion?

A. Season cracking of brass

B. Caustic embrittlement of steel

C. Both (A) & (B)

D. Neither (A) nor (B)

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A jig is used while __________ a hole.

A. Boring

B. Counter boring

C. Drilling

D. Enlarging

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Hot working of lead is carried out at

A. 75°C

B. 373°K

C. 150°C

D. Room temperature

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Pick out the wrong statement.

A. Seam welding, projection welding & spot welding are the classification of electrical resistance welding

B. Electrode tip in spot welding is of copper and the tip diameter should be equal to t (where, t = plate thickness to be welded)

C. In spot welding, two pieces to be joined are overlapped and placed between two electrodes

D. Mild steel sheet cannot be spot welded

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A steam carrying pipeline is insulated with two layers of insulating materials with the inferior insulation material forming the inner part. If the two insulating layers are interchanged, the heat conducted will

A. Increase

B. Decrease

C. Remain unaffected

D. May increase or decrease; depends on the thickness of each layer

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The burnout heat flux in the nucleate boiling regime is not a function of the

A. Liquid density

B. Vapour density

C. Temperature difference

D. Heat of evaporation

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In the X-ray radiography technique, the tube voltage for thicker plates as compared to thin plates, should be

A. Higher, as it gives higher wavelength

B. Lower, as it gives higher wavelength

C. Higher, as it gives shorter wavelength

D. Lower, as it gives shorter wavelength

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Function of gear box is to

A. Reduce the speed

B. Obtain variable speed

C. Increase the speed

D. Produce high torque

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Out of the following, the __________ pipe has the least corrosion resistance.

A. Mild steel

B. Copper

C. Cast iron

D. Wrought iron

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Half life of a radioactive isotope corresponds to the time required for half of the __________ to decay.

A. Atoms

B. Neutrons

C. Nucleons

D. Electrons

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Which of the following is not an explosive?

A. TNT

B. CMC

C. RDX

D. Lead azide