Transition from laminar flow to turbulent flow in fluid flow through a pipe does not depend upon the___________________?

Question: Cascade control is
[A].

the continuous adjustment of the set point index of an automatic control loop by a primary (master) controller.

[B].

used when changes in process conditions cause serious upsets in the controlled variable.

[C].

useful to control flow from temperature.

[D].

all ‘a’, ‘b’ & ‘c’.

Answer: Option D

Explanation:

No answer description available for this question.

Question: The bolt is subjected to __________ when the nut is tightened by putting the washer beneath it.
[A].

tension

[B].

shear

[C].

compression

[D].

bending & tension

Answer: Option A

Explanation:

No answer description available for this question.

Question: Normalising of a casting does not
[A].

induce stresses in it.

[B].

refine its grain structure.

[C].

reduce seggregation.

[D].

improve its mechanical properties.

Answer: Option A

Explanation:

No answer description available for this question.