A. less than d
B. between d and 1.5 d
C. between 1.5 d and 2d
D. greater than 2d
Correct Answer: less than d ✔
Last Updated: January 17, 2019
Related MCQs
- The length of a pipe is 1 km and its diameter is 20 cm. If the diameter of an equivalent pipe is 40 cm, then its length is__________?
- When time of closure tc = L/v0 (where L is length of pipe and v0 is speed of pressure wavE., the portion of pipe length subjected to maximum head is__________?
- A valve is suddenly closed in a water main in wl.ich the velocity is 1 m/sec and velocity of pressure wave is 981 m/ sec. The inertia head at the valve will be__________?
- In series-pipe problems__________?
- If a sphere of diameter 1 cm falls in castor oil of kinematic viscosity 10 stokes, with a terminal velocity of 1.5 cm/sec, the coefficient of drag on the sphere is__________?
- The hydraulic grade line is__________?
- The wake__________?
- A fluid of kinematic viscosity 0.4 cm2/sec flows through a 8 cm diameter pipe. The maximum velocity for laminar flow will be__________?
- The Prartdtl mixing length is__________?
- The distance from pipe boundary, at which the turbulent shear stress is one-third die wall shear stress, is__________?
- Separation of flow occurs when__________?
- The value of friction factor ‘f’ for smooth pipes for Reynolds number 106 is approximately equal to__________?
- In which of the following the friction drag is generally larger than pressure drag?
- When an ideal fluid flows past a sphere__________?
- Stanton diagram is a__________?
- Ay between two stream lines represents__________?
- The boundary layer thickness in turbulent flow varies as__________?
- The shear stress distribution for a fluid flowing in between the parallel plates, both at rest, is__________?
- Which of the following statements is correct ?
- In a Sutro weir, the discharge is proportional to__________?
- Coefficient of contraction for an external cylindrical mouthpiece is__________?
- Coefficient of discharge for a totally submerged orifice as compared to that for an orifice discharging free is__________?
- Coefficient of velocity of venturimeter__________?
- The discharge through a V- notch varies as__________?
- Size of a venturimeter is specified by__________?
- Which of the following is used to measure the discharge ?
- Hot wire anemometer is used to measure__________?
- In steady flow of a fluid, the total accele ration of any fluid particle__________?
- Stream lines and path lines always coincide in case of__________?
- The motion of air mass in a tornado is a__________?
- The continuity equation pi V,A,= p2V2A2 is based on the following assumption regarding flow of fluid__________?
- If the velocity is zero over half of the cross-sectional area and is uniform over the remaining half, then the momentum correction factor is__________?
- In a two dimensional incompressible steady flow around an airfoil, the stream lines are 2 cm apart at a great distance from the airfoil, where the velocity is 30 m/sec. The velocity near the airfoil, where the stream lines are 1.5 cm apart, is__________?
- The eddy viscosity for turbulent flow is__________?
- The horizontal component of force on a curved surface is equal to the__________?
- An open cubical tank of 2 m side is filled with water. If the tank is rotated with an acceleration such that half of the water spills out, then the acceleration is equal to__________?
- If a vessel containing liquid moves downward with a constant acceleration equal to ‘g’ then__________?
- A rectangular block 2 m long, 1 m wide and 1 m deep floats in water, the depth of immersion being 0.5 m. If water weighs 10 kN/m3, then the weight of the block is__________?
- Metacentric height for small values of angle of heel is the distance between the__________?
- Centre of buoyancy always__________?
- The total pressure on a plane surface inclined at an angle 9 with the horizontal is equal to__________?
- An open tank contains 1 m deep water with 50 cm depth of oil of specific gravity 0.8 above it. The intensity of pressure at the bottom of tank will be__________?