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Pressure gauges are never connected directly to the live steam line; rather a loop or syphon is interposed as close as possible to the pressure gauge. This is done to | |
A. | avoid the overheating of the tubes & bellows which operate them to minimise error and damage. [Wrong Answer] |
B. | form a seal of water by steam condensate to fill the tube or bellows at the pressure being measured. [Wrong Answer] |
C. | both 'a' & 'b'. [Correct Answer] |
D. | avoid the static head error introduced by steam entry. [Wrong Answer] |