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Chemical Engineering - Fluid Mechanics

Exercise : Fluid Mechanics - Section 16
6.
The blades of a centrifugal impeller are said to be curved forward, if the __________ of the motion of impeller blades.
inlet tip of a blade curves in a direction opposite to that
outlet tip of a blade curves in a direction opposite to that
inlet tip of a blade is towards the direction
outlet tip of a blade is towards the direction
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
For the same terminal conditions and fitting size, the least friction loss is incurred in a/an
T-joint
union
45° elbow
90°bend
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
A floating/submerged body is always stable, if its centre of gravity
lies above its centre of buoyancy.
and centre of buoyancy coincide.
lies below its centre of buoyancy.
lies above its meta centre.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
The co-efficient of discharge of an orificemeter is a function of
Reynolds number at the orifice.
ratio of orifice dia to pipe dia.
both (a) and (b).
none of the above parameters, and has a constant value of 0.61.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
Critical velocity in a pipe flow
increases as fluid viscosity increases.
increases as pipe diameter increases.
independent of fluid density.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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