Q. Which of the following is a boiler accessory i.e., not a boiler mounting ?

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Q. Which of the following forces does not act on a fluid at rest ?

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Q. Density in the solid state is slightly less than that in its liquid state, in case of

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Q. Strain hardening effect in metals subjected to cold working is due to the __________ mechanism.

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Q. __________ number determines whether the fluid flow in an open channel is supercritical, critical or sub-critical.

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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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