+1 physics mechanics of fluids

Hydraulic lift is based on which of the following

• Pascal's law

• Bernoulli's principle

• Archimedes principle

• Boyle's law

SI unit of pressure is

• Newton

• Pascal

• Hertz

• Watt

Equation of continuity is in accordance with

• Law of conservation of energy

• Law of conservation of mass

• Law of conservation of momentum

• Law of conservation of angular momentum

Bernoulli's principle is applicable only for

• Turbulent flow

• Viscous flow

• Steady flow

• Compressible flow

Normal force acting on a surface is called

• Pressure

• Thrust

• Torque

• Stress

The of the pistons in a hydraulic machine are 5 cm^2 and 625cm^2. The force on the smaller piston that support a load of 1250N on the large piston is ------

• 5N

• 10 N

• 15N

• 6N

A hydraulic lift at a service station can lift car with a mass of 3500kg. The area of cross section of the piston carrying the load is 500 cm^2. The pressure the smaller piston experience is ----- g=9.8m/s^2