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14 Cards in this Set
- Front
- Back
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The pipe that connects the steam header to the boiler return connection is the |
Equalizing line |
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A thermostatic steam trap that fails in the closed position would cause a heating unit to become |
Waterlogged |
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The device that controls the pressure in a low pressure steam boiler is called a |
Pressuretrol |
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A diamond on an instrument loop diagram encloses information concerning |
Set point |
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Which type of orfice plate is designed to measure flow of liquids containing solids |
Segmental |
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Which component in a closed control loop is the primary element |
Sensor |
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The main cause of undercutting is |
Too fast of a travel rate |
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What is the function of the covering on the electrodes during the process of “shielded metal arc welding” |
All |
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When arranging weld coupons for testing position 6G |
Axis of pipe should be at 45 degree |
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Both soldered and brazed joints are made by heating a properly prepared joint to the proper temperature and the flowing of a filler metal by means of |
Capillary action |
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When changing pipe sizes in the horizontal supply or return lines of a two pipe hit water heating system is |
Eccentric reducers, flat on top |
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A triple duty valve is installed |
In the hot water heating pumps discharge piping |
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An oil separator is required on systems using |
Ammonia |
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In the cooling cycle which component throttles the flow of refrigerant |
Expansion device |
