A "dead-weight" pressure testing machine as shown in Fig. Q5b is used to measure the accuracy of a Bourdon pressure gauge. If the weight and piston together weigh 200 N and the piston diameter is 2.5 cm, find the percentage error of the Bourdon pressure gauge if it indicates a pressure of 350 kPa.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A "dead-weight" pressure testing machine as shown in Fig. Q5b is used to measure
the accuracy of a Bourdon pressure gauge. If the weight and piston together weigh
200 N and the piston diameter is 2.5 cm, find the percentage error of the Bourdon
pressure gauge if it indicates a pressure of 350 kPa.
Piston
weight
Fig. Q5a
oil
Pressure
gauge
[3 marks]
Transcribed Image Text:A "dead-weight" pressure testing machine as shown in Fig. Q5b is used to measure the accuracy of a Bourdon pressure gauge. If the weight and piston together weigh 200 N and the piston diameter is 2.5 cm, find the percentage error of the Bourdon pressure gauge if it indicates a pressure of 350 kPa. Piston weight Fig. Q5a oil Pressure gauge [3 marks]
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