TSSA Study guides, Class notes & Summaries

4th TSSA Part B - Unit 5 Exam Guide Questions and CORRECT Answers R4B A steam boiler that is to be shut down for a long period of time should be: - Ans Drained, thoroughly dried, have desiccant placed inside, and closed up R4B When two or more sling eyes are used when lifting an object, they should be: - Ans Held in a shackle

4th TSSA Part B (III) UPDATED Exam Questions and CORRECT Answers Where does the carbonic acid found in condensate come from? - Ans From the decomposition of dissolved carbonates and bicarbonates in the boiler water (4-143-1.2) The predominant constituent of natural gas, which occupies up to 95% by volume, is: - Ans Methane (4-096-2.3) The packless radiator valve has a bronze diaphragm that completely seals off the valve body, to prevent: - Ans Steam leaking out around the valve stem

4th TSSA Part B - Unit 10 UPDATED Exam Questions and CORRECT Answers 4-125-4.6) The dew point is the: - Ans Temperature below which water vapour will start to condense out of the air (4-130-4.2) Modulating control valves: - Ans Can successfully control steam coils, as long as the air entering the coil is at or above 1.5°C . (4-125-4.9) Dry-bulb temperature is: - Ans The temperature of the air measured with an ordinary thermomete

4th TSSA Part B - Unit 4 UPDATED Exam Questions and CORRECT Answers Larger capacity, high pressure fuel trains are - Ans more complex The main burner test firing valve should be opened - Ans before starting the main burner What is the recommended boiler water pH for wet layup? - Ans 10 R4B Failure to _____ the furnace thoroughly before light-up can cause a furnace explosion. - Ans purge

4th TSSA Part B - Unit 9 UPDATED Exam Questions and CORRECT Answers (4-113-1.9) The two major types of compression refrigeration systems are: - Ans Indirect and Direct (4-116-1.4) The safety head of a refrigeration compressor is designed to: - Ans Relieve pressure due to liquid in the cylinder (4-120-1.2) A pressure relief device on a refrigeration system shall have sufficient capacity to prevent the pressure in the pressure vessel from rising more than _____ above the setting of the ...

4th TSSA Part B - Unit 2 UPDATED Exam Questions and CORRECT Answers (4-074-5.3) Most pump troubles occur: - Ans During initial start up (4-073-3.6) Centrifugal pumps convert rotating mechanical energy into kinetic energy then: - Ans Into potential energy in the form of pressure (4-074-2.10) If the packing gland of a centrifugal water pump is leaking too much: - Ans Tighten up the gland but permit a slight amount of leakage

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4th TSSA Part B Test (I) Questions With 100% Correct Answers!!