When a liquid is contained in a vessel, it exerts force at all points on the sides and bottom of the vessel. The force per unit area is called intensity of pressure. Mathematically, intensity of pressure,
p = P/A
where
P = Force acting on the liquid, and
A = Area on which the force acts.
The intensity of pressure may be expressed either in N/m2, N/mm2 or in metres of liquid or mm of liquid. Intensity of pressure is also expressed in pascal (briefly written as Pa), such that
1 Pa= 1 N/m2; 1 kPa= 1 kN/m2 and 1 MPa = 1 MN/m2= 1 N/mm2
14) What is the unit of pressure in SI unit?
Answer is:
Pascal
Explanation:
Related Hydraulic and Pneumatics MCQ with Answers
Answer is:
Newton
Explanation:
In S.I system of units, the unit of force is Newton (briefly written as N). A Newton may be defined as the force, while acting upon a body of mass 1 kg, produces an acceleration of 1m/s2 in the direction of which it acts.
1 N = 1 kg x 1 m/s2 = 1 kg-m/s2
