Fluid Mechanics

The ratio of average velocity to maximum velocity for steady laminar flow in circular pipes is_______________?

Byadmin January 17, 2019August 12, 2021

The ratio of average velocity to maximum velocity for steady laminar flow in circular pipes is_______________?

A. 1/2
B. 2/3
C. 3/2
D. 2

Fluid Mechanics

The losses are more in_________________?

The losses are more in_________________?

A. laminar flow
B. transition flow
C. turbulent flow
D. critical flow

Read More The losses are more in_________________?
CHEMICAL ENGINEERING | Fluid Mechanics

For turbulent fluid flow in pipe, the expression for Prandtl one seventh power law is (where, r = pipe radius, x = distance).

Question: For turbulent fluid flow in pipe, the expression for Prandtl one seventh power law is (where, r = pipe radius, x = distance).
[A].

V/Vmax = (x/r)1/7
[B].
V/Vmax = (r/x)1/7
[C].
V/Vmax = (x.r)1/7
[D].
none of these

Answer: Option A

Explanation:

No answer description available for this question.

Read More For turbulent fluid flow in pipe, the expression for Prandtl one seventh power law is (where, r = pipe radius, x = distance).
CHEMICAL ENGINEERING | Fluid Mechanics

Mach number is important in a fluid flow problem, when the inertia and __________ forces predominate.

Question: Mach number is important in a fluid flow problem, when the inertia and __________ forces predominate.
[A].

elastic
[B].
viscous
[C].
gravity
[D].
none of these

Answer: Option A

Explanation:

No answer description available for this question.

Read More Mach number is important in a fluid flow problem, when the inertia and __________ forces predominate.
CHEMICAL ENGINEERING | Fluid Mechanics

A double acting reciprocating pump compared to a single acting pump (of almost same size working under same pressure levels) would give almost double

Question: A double acting reciprocating pump compared to a single acting pump (of almost same size working under same pressure levels) would give almost double
[A].

head
[B].
discharge
[C].
efficiency
[D].
none of these

Answer: Option B

Explanation:

No answer description available for this question.

Read More A double acting reciprocating pump compared to a single acting pump (of almost same size working under same pressure levels) would give almost double
Fluid Mechanics

A vertical rectangular plane surface is submerged in water such that its top and bottom surfaces are 1.5 m and 6.0 m res-pectively below the free surface. The position of center of pressure below the free surface will be at a distance of________________?

A vertical rectangular plane surface is submerged in water such that its top and bottom surfaces are 1.5 m and 6.0 m res-pectively below the free surface. The position of center of pressure below the free surface will be at a distance of________________?

A. 3.75 m
B. 4.0 m
C. 4.2m
D. 4.5m

Read More A vertical rectangular plane surface is submerged in water such that its top and bottom surfaces are 1.5 m and 6.0 m res-pectively below the free surface. The position of center of pressure below the free surface will be at a distance of________________?
Fluid Mechanics

A bucket of water is hanging from a spring balance. An iron piece is suspended into water without touching sides of bucket from another support. The spring balance reading will_________________?

A bucket of water is hanging from a spring balance. An iron piece is suspended into water without touching sides of bucket from another support. The spring balance reading will_________________?

A. increase
B. decrease
C. remain same
D. increase/decrease depending on depth of immersion
E. unpredictable

Read More A bucket of water is hanging from a spring balance. An iron piece is suspended into water without touching sides of bucket from another support. The spring balance reading will_________________?