Interview Questions Answers in Instrumentation

wole oyefisayo

{ City } lagos
< Country > nigeria
* Profession *
User No # 107783

Total Questions Posted # 0
Total Answers Posted # 2

Total Answers Posted for My Questions # 0
Total Views for My Questions # 0

Users Marked my Answers as Correct # 13
Users Marked my Answers as Wrong # 8

Questions / { wole oyefisayo }

Questions Answers Category Views Company eMail

Answers / { wole oyefisayo }

Question { Niko, 8824 }

what is the difference in Kg/cm2 and mmwc?

Answer

1 kg/cm^2 = 1000 water column [millimeter]

Is This Answer Correct ?

4 Yes

8 No

Question { 10098 }

How we are blocking 40 kg or more pressure through only 6 kg instrument air in control valve

Answer

there exists an inverse relationship between pressure (P) and the surface area (A).

Pressure=(Force/Area)
By manipulating The Force-Area Ratio we can achieve what you ask.
You only need to reduce appropriately the surface area on which the 6 Kg weight is acting to match the pressure created by the 40 Kg weight.

seunwole

Is This Answer Correct ?

9 Yes

0 No