Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN: 9781305578296
Author: John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher: Cengage Learning
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Chapter 11, Problem 7RQ
Accuracy of a thermometer is more important in the ______temperature ranges.
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An hydrogen vapour container is mounted with a pressure gauge which shows 10 bar. Then its absolute pressure is _______bar
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In U tube manometer with water as manometric fluid, theoretical pressure is 0.0981 N/mm2 , then its h is approximately _____________
A.
None of the answers given
B.
0.1 mm
C.
0.1 m
D.
0.1 cm
Explain with a neat block diagram the measurement of temperature using a thermocouple (measuring system).
Chapter 11 Solutions
Refrigeration and Air Conditioning Technology (MindTap Course List)
Ch. 11 - What does "calibrating an instrument" mean?Ch. 11 - Three reference points that may be used to check...Ch. 11 - Prob. 3RQCh. 11 - Temperature-measuring instruments may be designed...Ch. 11 - Glass stem thermometers are being replaced by...Ch. 11 - True or False: To check the temperature leads of...Ch. 11 - Accuracy of a thermometer is more important in the...Ch. 11 - Prob. 8RQCh. 11 - Prob. 9RQCh. 11 - What should a gauge manifold reading indicate when...
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- In U tube manometer with water as manometric fluid, theoretical pressure is 0.000981 N/mm2 , then its h is approximately _____________ A. 0.1 m B. 0.1 cm C. 1 m D. 0.1 mmarrow_forwardWhat is called to "USE OF TEMPERATURE INTERVAL OR DIFFERENCE EQUAL TO THE KELVINarrow_forwardThe most accurate method of fluid flow measurement is ___________ flow measurement. a. velocity b. mass c. density d. volumearrow_forward
- O b. Expansion coefficient. O c Voltage. O d. Pressure. Hydraulic oil is used in the Boyle's Law demonstration experiment Select one: O a. True Ob. False The folowins instruments areuseo to measure the cexgeraturarrow_forwardUsing Boyle's law demonstrator, the oil is transferred between the measuring chamber and the fluid chamber via: Select one: a. A pressure relief valve. b. A needle valve. C. A flow control valve. d. A compressor.arrow_forwardPELASE ANSWER IT in 15 mins show sln step by step. THERMODYNAMICSarrow_forward
- Manometer is used to measure _______________________ a. Discharge b. Differential pressure head c. Velocityarrow_forward21. The following are the results of tests conducted on a centrifugal pump. Negative pressure head in suction pipe close to pump =22 cms of mercur y Pressure he id in delivery pipe close to pump=1'50 kg/cm2 Difference of level between the two gauges 0 50 metres SHP of the electric motor Discharge of the pump * Dianeter of the suction pipe Diameter of the delivery pipe Calculate the overall efficieney of the pump. -32 hp -010 cumeo %3D =20 cma 18 cms (78 17%)arrow_forwardIn many temperature control applications, __________ is the controlled variable.arrow_forward
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