4th tssa part a - Study guides, Class notes & Summaries

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

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 A (I) with Complete Solutions 2024

4th TSSA Part A Unit 1 Exam Questions and Answers (4-009-2.3) The ability of a body to do work due to its motion is called ____________ energy. - Answer-Kinetic (4-009-1.7) The change of position (in meters) per unit time is: - Answer-Velocity (4-015-1.5) The force of friction is: - Answer-Not affected by the area of the two surfaces in contact. (4-012-1.11) With reference to scalars and vectors, a space diagram: - Answer-Illustrates a system of vectors. (4-016-3.3) A 1.5m long r...

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 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

When a combustion air opening is equipped with dampers, the dampers must be - interlocked with the burner, and fully open before starting the boiler. R4B A substance that absorbs humidity inside a boiler during dry layup is: - Activated alumina (4-142-1.3) The high oil temperature shutdown device of an oil-fired heater senses the: - Oil temperature at the furnace outlet R4B A boiler furnace pre-purge: - must last a specific amount of time. R4B In a building plumbing system, the potable wa...

When a combustion air opening is equipped with dampers, the dampers must be - interlocked with the burner, and fully open before starting the boiler. R4B A substance that absorbs humidity inside a boiler during dry layup is: - Activated alumina (4-142-1.3) The high oil temperature shutdown device of an oil-fired heater senses the: - Oil temperature at the furnace outlet R4B A boiler furnace pre-purge: - must last a specific amount of time. R4B In a building plumbing system, the potable wa...

(4-075-int.1) Compressed air tools tend to be: - More expensive than electrical tools R4B Temperature relief devices limit the temperature in domestic hot water systems to no more than: - 99°C (4-143-2.14) What is the primary use of the ground wood pulp, produced by the mechanical process? - Newsprint R4B The cheapest and most commonly used grease is: - Lime base R4B In a circulatingdomestichot water system, automatic air vents - Remove air that is released when water is heated R4B Natu...

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 ...