6601. Which of the following has the minimum compressibility?
Water at room temperature
Air at room temperature
Oxygen at room temperature
Nitrogen at room temperature
✅ The correct answer is option A.
Chemical Engineering
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6602. The capacity of an accumulator is the maximum
Energy which it can store
Discharge which it can deliver
Liquid which it can store
None of these
✅ The correct answer is option A.
6603. If Blausius or Darcey friction factor is ‘f₁’ then the Fanning friction factor is equal to
f₁/4
4F₂
2f₁
f₁/2
✅ The correct answer is option A.
6604. If the head over the triangular notch is doubled, the discharge will increase by __________ times.
2
2.828
5.657
4
✅ The correct answer is option C.
6605. Each term in Bernaulli’s equation represents the __________ of the fluid.
Energy per unit mass
Energy per unit weight
Force per unit mass
None of these
✅ The correct answer is option B.
6606. Drag is defined as the force exerted by the
Fluid on the solid in a direction opposite to flow
Fluid on the solid in the direction of flow
Solid on the fluid
None of these
✅ The correct answer is option B.
6607. A fluid is the one, which
Cannot remain at rest under the action of shear force
Continuously expands till it fills any container
Is incompressible
Permanently resists distortion
✅ The correct answer is option A.
6608. Surge tanks are provided in high pressure water pipelines to
Store a definte quantity ofwater all the time
Reduce the water hammer
Facilitate easy dismantling of pipeline for cleaning and maintenance
None of these
✅ The correct answer is option B.
6609. Baffles in mixing tanks are provided to
Reduce swirling and vortex formation
Increase the structural strength of the tank
Aid in rotational flow
None of these
✅ The correct answer is option A.
6610. The friction factor is
Always inversely proportional to the Reynolds number
Not dimensionless
Not dependent on the roughness of the pipe
None of these
✅ The correct answer is option D.