In a heating process, a heat flow diagram in which the quantities of heat in the various items of a heat balance are represented by the width of a band is called the

Question: Maximum permissible air velocity in pipelines is about __________ metre/second.
[A].

5

[B].

10

[C].

20

[D].

40

Answer: Option B

Explanation:

No answer description available for this question.

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.