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



Mechanical Engineering : Process Instrumentation And Control QUESTIONS AND ANSWERS :: part4 : 21 to 25

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

21.Pure water has pH value of 7. This means that pure water has :

7 g of ionized hydrogen per litre
10 g of ionized hydrogen in/m
1CT7 % of ionized hydrogen
10"7 g of ionized hydrogen per litre
none of the above.

22.The range of values through which the variable must change to cause the final control element to move from one extreme position to the other :

throttling range
disturbance
proportional band
response
deviation.

23.The pH value is a measure of hydrogen ionin a solution. The letters pH stand for :

percentage of H2 in solution
power of the hydrogen ion concentra-tion
presence of hydrogen ions
purity of H20
none of the above.

24.In capillary viscometer, viscosity is proportional to :

flow
1/flow
Vflow
1/Vfl ow
1/flow3/2.

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

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