Q. Nusselt number is related to the Reynolds number (Re) in turbulent & laminar flow respectively as

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Q. For the irreversible reaction, Ca+ 2C = CaC₂ , Δ H°298 = - 60000 J . mole⁻¹ . If a system initially containing 2 moles of calcium, 3 moles of carbon and 1 mole of calcium carbide is allowed to react to completion, the heat evolved at 298 K will be

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Q. Projection welding & stud welding is categorised as the __________ welding.

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Q. The driving force for the sintering of a powder compact is

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Q. The amount of water evaporated in kg per kg of fuel burnt in a boiler is called the __________ of a boiler.

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Q. Volumetric composition of flue gas analysed with the Orsat apparatus is : CO₂ = 12%, O₂ = 8%, CO = nil, N₂ = 80%. This flue gas composition indicates that

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Q. Coating provided on the electrodes used in the arc welding is not expected to

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Q. Desalination of water

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Q. Viscoelastic behaviour is observed in __________ materials.

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Q. Probability of cavitation occuring becomes very high, when the local __________ resulting in water bubbles formation, which on rupture cause cavitation

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Q. Which of the following materials has the poorest electrical conductivity ?

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Q. Lead pencil contains

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Q. Function of gear box is to

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Q. Pearlite comprises of

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Q. Which of the following if present in iron ore, enhances its value ?

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Q. As per international norms, the maximum permissible value of noise level in the industrial environment is __________ decibels as measured at a distance of 1.5 metres from the source of noise.

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Q. For a first order chemical reaction, the concentration of the reactant decreases __________ with time.

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Q. Air standard Otto cycle is more efficient than the diesel cycle for the same

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Q. In case of brasses, with decreasing zinc percentage and increasing copper percentage, its __________ increases.

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Q. A suitable lubricant used for watches is

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