The pressure in the air space above an oil (sp. gr. 0.8) surface in a tank is 0.1 kg/cm”. The pressure at 2.5 m below the oil surface will be ________?

The statement that molecular weights of all gases occupy the same volume is known as________?

A perfect black body is one which________?

Points of arrest for iron correspond to________?

The fuel air ratio in a petrol engine fitted with suction carburettor, operating with dirty air filter as compared to clean filter will be________?

Which of the following is false statement in respect of differences between machine and structure________?