A. Increases
B. Decreases
C. Remain constant
D. May increase or decrease; depends on the liquid
Correct Answer: Decreases ✔
Last Updated: March 10, 2019
Related MCQs
- The continuity equation in ideal fluid flow states that__________?
- Capacity of a hydraulic accumulator is defined in terms of maximum__________?
- Nature of fluid flow during the opening of a valve in a pipeline is__________?
- The ratio of average fluid velocity to the maximum velocity in case of laminar flow of a Newtonian fluid in a circular pipe is__________?
- The equivalent diameter for pressure drop calculation for a duct of square cross-section is given by (where, x = each side of the square duct) ?
- Hydraulic intensifier is used for increasing the __________?
- Net positive suction head (NPSH) of a centrifugal pump must be__________?
- The ratio of the hydraulic radius to the diameter of the channel, for maximum mean velocity of flow in a circular channel, in open channel flow is__________?
- Volute type of casing is provided in a centrifugal pump to__________?
- Air vessel provided in a reciprocating pump__________?
- The pipe wall thickness is minimum for a pipe of given nominal size having schedule number__________?
- The ratio of width to depth for the most economical rectangular section in open channel flow is__________?
- Choking in case of pipe flow means that a__________?
- If Blasius or Darcy friction factor is ‘f1’ then the Fanning friction factor is equal to__________?
- Consider a centrifugal pump having a specific impeller diameter, fixed impeller speed pumping a liquid of constant density at a particular discharge capacity. With decrease in the capacity of the pump, the __________ decreases?
- When the pipe Reynold’s number is 6000, the flow is generally__________?
- Which of the following is a dimensionless parameter ?
- The pump impeller and the turbine runner in a hydraulic torque converter__________?
- Deformation drag, which is caused by widespread deformation of fluid around the immersed body__________?
- With diminishing cross-sectional area in case of subsonic flow in a converging nozzle, the__________?
- A streamline is__________?
- What causes convective acceleration in fluid flow ?
- Each term of the Bernoulli’s equation written in the form, (p/ρ) + (g/gc). Z + (v2/2gc) = constant, represents the total energy per unit __________?
- Draining of shallow pits or sump is done by a sump pump, which is a __________ pump?
- In which type of fluid flow, the velocity of flow of fluid changes from point to point in the fluid at any instant ?
- Which of the following is the „Blasius equation‟, relating friction factor to the Reynolds number ?
- A spherical particle is falling slow in a viscous liquid such that Reynolds number is less than 1. Which statement is correct for this situation ?
- Isotropic turbulence occurs __________?
- Specific speed of a centrifugal pump relates it with another pump having the__________?
- For flow through an orifice from a reservoir, the actual velocity at the vena contracta is given by __________?
- A special type of liquid transporting device is the diffuser pump, in which __________ are minimised?
- Vena-contracta pressure tapping is at a distance __________ from the position of an orificemeter fitted in a pipe of internal diameter ‘d’ ?
- Centre of pressure of a plane surface of arbitrary shape immersed vertically in a static mass of fluid__________?
- Manometers measure the __________ pressure?
- Pitot tube measures the __________ of a fluid?
- For motion of spherical particles in a stationary fluid, the drag co-efficient in hindered settling compared to that in free settling is __________?
- What causes cavitation in centrifugal pump ?
- Hydrometer measures the specific gravity of liquids based on the principles of buoyancy. Pycnometer is used to measure the specific gravity of__________?
- Volume of liquid displaced by a floating body is equivalent to its__________?
- The pressure at a point in a fluid is not the same in all directions, when the fluid is viscous and__________?
- The time taken for gravity flow of a fixed volume of liquid (as in Redwood viscometer) is directly proportional to its __________?
- The co-efficient of drag and lift for an incompressible fluid depends on the__________?
- The kinetic energy correction factor for velocity distribution of laminar flow is__________?
- A centrifugal pump loses prime after starting. The reason of this trouble may be__________?
- Venturimeters, orificemeters and nozzles are used to measure the fluid discharge from a pipeline. The average fluid velocity in a pipeline can be measured by a/an__________?
- The fluid property which matters for falling rain drops to acquire spherical shape is its__________?
- Priming of a centrifugal pump is done to__________?
- Pick out the wrong statement pertaining to fluid flow ?
- The ratio of the wall drag to the form drag in the Stoke’s law range (for motion of spherical particles in a stationary fluid) is__________?
- The discharge through a Venturimeter depends upon __________?
- The head loss due to sudden expansion is__________?