Mechanical Engineering Questions And Answers :: Process Instrumentation And Control: part4



Mechanical Engineering : Process Instrumentation And Control QUESTIONS AND ANSWERS :: part4 : 1 to 5

Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :

1.An operation which, in the presence of a disturbing influence, tends to reduce the difference between the actual state of a system and an arbitrarily varied desired state and which does so on the basis of this difference, is called :

automatic control
feedback control
open feed back control
closed feed back control
self regulation.

2.The orsat apparatus is used for measuring:

chemical analysis of flue gases
moisture in air
composition of alloys
colour spectrum
molecular configuration.

3.The density can be measured using :

weight
buoyancy
hydrostatic head
resonant elements
all of above.

4.Spectrophotometer is used to :

measure surface hardness
measure surface characteristics
measure chemical composition of al-loys
analyse colour spectrum
analyse gas composition.

5.Which measurement is a good guide to the quality of the water :

conductivity
pH
dissolved 02 content
turbidity
all of the above.

More Process Instrumentation And Control QUESTIONS AND ANSWERS available in next pages

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