1)The gravity at a location is 5 m/s². The density of fluid was 2000 kg/m³. The pressure exerted by a column of 1 m of the fluid will be (a) 400 N/m² (b) 10000 N/m² (c) 2000 N/m² (d) 5 N/m² 2) The specific weight of a fluid is 20000 N/m². The pressure (above atmosphere) in a tank bottom containing the fluid to a height of 0.2 m is (a) 40000 N/m (b) 2000 N/m² (c) 4000 N/m² (d) 20000 N/m² 3) The pressure less than atmospheric pressure is known as (a) suction pressure (b) vacuum pressure (c) negative gauge pressure (d) all of these (4) A flow in which the volume of a fluid and its density does not change during the flow is called flow. (a) incompressible 5) A flow in which (a) Elastic (b) Compressible (c) laminar (d) turbulent force is dominating over the viscosity is called turbulent flow. (c) Viscous (d) Inertia (b) surface tension 6) Reynold's number is the ratio of inertia force to (a) pressure force (b) elastic force 7)Laminar flow (a) takes 8) The shear stress-strain (a) straight line (c)gravity force place at very low velocities. (b) does not take graph for a Newtonian fluid is a (b) parabolic curve (a) the top of the pipe (c) (D/3) from bottom of the pipe (c) hyperbolic curve (d) elliptical 9) Viscous force is the (a) sum (b) different of shear stress due to viscosity and cross-sectional area (c) product (d) ratio 10) According to Newton's law of viscosity, the shear stress on a layer of a fluid is strain. (d) viscous force (a) equal to (b) directly proportional (c) inversely proportional 11) The maximum velocity in a circular pipe when flow is laminar occurs at 12) The unit of the constant(H) in the Bernoulli's equation is mkg, Is kg, m.kg,/kg, of flow. (b) the center of the pipe (d) (D/3) from the top of the pip (a) (b) (c) m.kg, IN 13) The relation between hydraulic coefficients is (2) C₁ = C₁/C₁ (b) C₁=C₁/C₁ (c) C₁=C₂ *C₁ √2gh (d) C₁ = C₁ C₁ √2gh to the rate of shear