Fluid Pressure and its Measurement Questions and Answers

Fluid Pressure and its Measurement Questions and Answers Points : Fluid Pressure and its Measurement chapter Questions and Answers Q.1: Define the term of pressure. Ans: We see that whenever a liquid (such a water, oil etc.) is contained in a vessel, it exerts force at all points on the sides and bottom of the container. This force per unit area is called pressure. Q.2: Define the pressure head? Ans. Consider a vessel containing some liquid as shown in we know that the liquid will exert pressure on all sides as well as bottom of the vessel, Q.3: Find the pressure the height of liquid in piezometer tube is 45 cm Ans. P = w.h
h = 45cm 0.45m
w = 9.81KN/m³
P = 9.81 x 0.45 Q.4: Define the pascal’s law. Ans: The intensity of pressure at any point in fluid at rest is the same in all direction
Px = Py = Pz Q.5: Find the pressure at a point 4m below the tree surface of water. Ans: h = 4m
P = wxh
w = 9.81 KN/m³
h = 9.81x4
39.24kPa Q.6: A steel plate Immersed in an oil of specific weight 7.5 KN/m³ upto depth of 2.5 m. What is Intensity of pressure on the plate due to the oil? Ans: w = 7.5.KN/m³
h = 2.5m
p = wxh
= 7.5 x 2.5
= 18.75 KN/m³ Q.7: Calculate the height of water column equivalent to a pressure of 0.15 mPa. Ans: h = p/w
P =051 mPa = 0.15 x 10³ KN/m²
w = 9.81 KN/m³
h = 0.15 x 10³/9.81
= 15.3 m Q.8: Enlist the difference type of Manometer? Ans: (1) simple manometer (2) Micro manometer (3) Differential Manometer (4) Inverted differential Manometer Q.9: Define negative guage pressure. Ans: If the pressure intensity is less than the local atmospheric pressure the difference of these two pressure is called the negative guage pres Q.10: Types of Measurement of fluid pressure? Ans: (1) Piezometer (2) Manometer