Mechanical Engineering : Process Instrumentation And Control QUESTIONS AND ANSWERS :: part3 : 6 to 10
Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
6.Flow in open channels is measured by using : |
| nozzle |
| orifice plate |
| propeller |
| weir |
| vortex-shedding meter. |
7.The flow error in case of normal nozzles is of the order of : |
| 0.1% |
| 0.2% |
| 0.5% |
| 1% |
| 2%. |
8.Local velocity is measured by a : |
| pitot tube |
| venturi tube |
| orifice plate |
| vena contracta device |
| nozzle. |
9.Automatic cold junction compensation in thermocouple is provided by : |
| connecting thermocouple wires, in op-position |
| a nickel wire resistance in series with a manganin resistance |
| maintaining cold junction temperature constant by a cooling unit |
| using a photovoltaic cell |
| connecting a dry battery cell in opposi�tion. |
10.Pick out the odd flow measuring device among the following : |
| positive displacement type |
| nutating disc type |
| sliding vane type |
| turbine type |
| hydraulic flume. |
More Process Instrumentation And Control QUESTIONS AND ANSWERS available in next pages
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