Q. Though tin occurs lower than iron in the electrochemical series, yet it is coated on steel for corrosion protection, because of its

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Q. Which of the following is resistant to the action of both heat & chemicals ?

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Q. Metallic surveying tapes are made of __________ which has a low co-efficient of expansion & enough strength.

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Q. Which of the following is a unit of time ?

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Q. __________ furnace is generally used in the non-ferrous foundaries.

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Q. Steel & cast iron pipes are produced by __________ casting.

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Q. The taper provided on pattern for its easy & clean withdrawal from the mould is termed as the __________ allowance.

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Q. The emf of a Deniell cell Zn | Zn²⁺ || Cu²⁺| Cu can be increased by

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Q. A hot short metal is

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Q. Corrosion rate can not be lowered by reducing the __________ of the corroding medium.

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Q. Routing in production, planning & control is concerned with the

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Q. A fire tube boiler is limited to a maximum steam pressure of about __________ kg/cm².

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Q. Function of blow down valve in a boiler is to

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Q. Insulation of liquid surface can be achieved by __________ on top of its surface.

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Q. Consider an ideal solution of components A and B. The entropy of mixing per mole of an alloy containing 50 wt% B is

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Q. Out of the following, the lowest packing of atoms exists in __________ crystal lattice structure.

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Q. Cadmium in zinc leach liquor is removed by cementation using

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Q. Lead is poured into the joint between two- __________ pipes.

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Q. The concentration of (H⁺) ions is 4 x 10⁻⁵ in a solution. Then pH of the solution will be (Given log 4 = 0.6 )

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Q. Age hardening is connected with

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