Q. Fire in fuel gas pipelines is extinguished most effectively by

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Q. Which of the following is the most suitable abrasive for grinding high tensile strength materials ?

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Q. The most suitable material of construction for a sewer to carry sewage under high pressure is

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Q. Filler material used in welding should have __________ as compared to the parent metal to be welded.

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Q. Oxygen cylinders used for autogenous (cutting/welding) purposes are

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Q. Identify the correct statement.

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Q. Dowtherm is a

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Q. In chemical dehumidification process

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Q. Secondary hardening in steels arises out of the

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Q. Drills are usually made of

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Q. Tumbling is the process of improving the __________ of the materials/parts.

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Q. The __________ of a double acting reciprocating pump as compared to the single acting pump will be almost double.

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Q. __________ circuit is most commonly used to measure strain with the help of a strain gauge.

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Q. Which of the following is normally not found in both the S.I. (petrol) & C.I. (diesel) engines ?

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Q. __________ is a special constituent of chlorophyll without which photosynthesis is not possible.

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Q. __________ is used as a material of construction for the blade of power saw.

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Q. During decarburising of a plain carbon steel, the thickness of ferrite layer growth is proportional to

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Q. With increase in annealing temperature, the following defect density decreases.

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Q. Carnot cycle is also termed as the constant __________ cycle in thermodynamics.

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Q. Thermistors are used in __________ devices.

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