Chemical Engineering Basics
A controller action in which there is a con-tinous relation between the values of controlled variable and the rate of change of conrolled output signal is called the __________ action.

Integral
None of these
Derivative
Proportional

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Chemical Engineering Basics
Compression ratio of an I.C. engine is the ratio of the

Pressure after compression to that before compression
Clearance volume to the volume swept by piston per stroke
Volume of air in cylinder before compression to that after compression
None of these

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