Q. The ratio of coil diameter to wire diameter of a spring is called the spring

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Q. Dialysis is the process of separating substances in the

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Q. Silicon crystal can be converted to p-type semi-conductor by doping with

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Q. Large diameter reinforced cement concrete (RCC) pipes are generally joined by __________ joint.

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Q. Increase in the entropy of a system represents the

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Q. Property responsible for the talcum powder to cling to the skin is the

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Q. __________ has a negative co-efficient of linear expansion.

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Q. Volume of blast furnace slag is about __________ times the volume of hot metal (pig iron) of the same weight

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Q. Basic open hearth furnace (BOF) is not used for producing __________ steel.

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Q. Principal alloying element in Elinvar (used for making hair springs for watches) is

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Q. The value of y = Cᵨ/Cᵥ. at < 500°C for air & most common gases can be safely assumed to be

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Q. Tesla metre per ampere (T. m/A) is the unit for the measurement of

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Q. Specific gravity of a metal, which weighs 5 kg in air and 4 kg when submerged in water, will be

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Q. Which of the following is an acidic constituent of B.F. slag ?

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Q. Alumina, silica, lime and iron oxide are the basic raw material for the manufacture of portland cement. The component of Portland cement which first hardens is

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Q. Material of construction of the electrode used in the electric resistance welding is

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Q. In practice, the compression ratio of compression-ignition (CI) engine ranges from

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Q. Dislocations are __________ defects.

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Q. The thickness of oxide film is y at time t. If K₁, K₂ and K₃ are the temperature dependent constants, the parabolic law of oxidation is given by

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Q. Which of the following has the least value of ultimate tensile strength (UTS) ?

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