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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