With increase in ___________________ Knocking tendency in a spark ignition petrol engine decreases?

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Which of the following hardness tests does not measure the indentation hardness of metals and alloys ?

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Out of the following, the best material capable of withstanding shock & vibration without the danger of cracking is ___________________?

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Broaching tools are usually made of____________________?

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Silicon percentage in the silicon steel used for electrical appliances/equipments is_________________?

A. 0.3-0.4 B. 12-14 C. 3-4 D. 20-25...

The _________________ of a double acting reciprocating pump as compared to the single acting pump will be almost double ?

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