Q. Pressure differential maintained across a continuous rotary vacuum filter is in the range of __________ mm Hg column.

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Q. Vertical storage vessels are never supported by __________ support.

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Q. In a double pipe (concentric) heat exchanger, the hydraulic radius for heat transfer (for a fluid flowing through the annulus) would be

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Q. Elastic failure of a material occurs, when the tensile stress equals yield strength, yield point or the elastic limit. Also, the elastic failure occurs according to maximum strain theory, when the maximum tensile strain equals (where, σ = yield strength and E = modulus of elasticity)

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Q. In a pressure vessel containing multiple openings of various dimensions at different parts, stress concentration at the edges of the opening is maximum which becomes negligibly small beyond the area covered by __________ times the hole diameter.

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Q. What is the slope of the feed line, if the feed to a distillation column is a saturated liquid ?

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Q. Filtration rate is affected by the

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Q. Liquid gradient over a tray can be minimised by

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Q. In a shell and tube heat exchanger for a given heat transfer surface area, smaller diameter tubes are favoured as compared to larger diameter ones ; because the smaller diameter tubes

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Q. 'P' is the investment made on an equipment, 'S' is its salvage value and 'n is the life of the equipment in years. The depreciation for rath year by the sum-of years digit method will be

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Q. If an amount R is paid at the end of every year for 'n' years, then the net present value of the annuity at an interest rate of i is

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Q. An investment of Rs. 1000 is carrying an interest of 10% compounded quarterly. The value of the investment at the end of five years will be

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Q. The payback method for the measurement of return on investment

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Q. Annual depreciation costs are constant, when the __________ method of depreciation calculation is used.

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Q. Cost incurred towards __________ in a chemical plant is a component of the utilities cost.

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Q. Equipment installation cost in a chemical process plant ranges from __________ percent of the purchased equipment cost.

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Q. Annual depreciation cost are not constant when, the __________ method of depreciation calculation is used.

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Q. Pick out the wrong statement.

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Q. Construction expenses are roughly __________ percent of the total direct cost of the plant.

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Q. A machine has an initial value of Rs. 5000, service life of 5 years and final salvage value of Rs. 1000. The annual depreciation cost by straight line method is Rs.

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