Q. Which of the following emissions in the exhaust gas of an I.C. engine causes the formation of photochemical smog?

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Q. If Reynolds number is greater than 1, then the

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Q. The type of pump used for lifting large quantity of sewage is a __________ pump.

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Q. Which of the following metals is not subjected to electrolytic refinning/purification?

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Q. The most important function of a washer is to provide bearing area and washers are normally specified by their hole diameters. The diameter of washer as compared to the nut is

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Q. The hardenability of steel decreases with

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Q. Pick out the correct statement about the condensation.

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Q. Change in volume of metals from absolute zero temperature to their melting points is

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Q. Wohler test is a destructive test to find out the __________ strength of a prepared metal specimen.

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Q. Alloy powder manufactured by the following process have spherical shapes.

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

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Q. The product of a commercial direct reduction process is

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Q. In the diving apparatus, helium is used along with oxygen, because it is

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Q. Materials having resistivity ranging from 1 to 100 ohm. cm is termed as

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Q. During sensible cooling of air, its wet bulb temperature

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Q. The underground well of a biogas plant is called the

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Q. Use of water as a manometric liquid suffers from the disadvantage of its

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Q. The following thermocouple may be used for measuring temperature upto 1873°K.

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Q. Thermodynamic cycle involved in the working of a thermal power plant is the __________ cycle.

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Q. Closeness of packing is maximum in case of __________ crystal lattice.

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