R4b a boiler - Study guides, Class notes & Summaries

ABSA 4B – 1 Questions with Complete Solutions 100% Verified Correct Answers R4B An anti-friction bearing: Select one: a. Tapered rollers b. Is a sleeve bearing c. Has rolling friction d. Wears to a smooth, low-friction surface e. Is constructed with white metal alloy - Correct Answer c The amount of water used in an evaporative condenser is only a small percentage of that used in a water-cooled condenser of the same capacity, because Select one: a. Water is scarce where evaporativ...

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...

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...

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

4th TSSA Part B Unit 4 Exam Questions and Answers Larger capacity, high pressure fuel trains are - Answer-more complex The main burner test firing valve should be opened - Answer-before starting the main burner What is the recommended boiler water pH for wet layup? - Answer-10 R4B Failure to _____ the furnace thoroughly before light-up can cause a furnace explosion. - Answer-purge R4B When cooling down a steam boiler that has been taken out of service, a vent valve on a steam drum ...

4th TSSA Part B Unit 4 Exam Questions and Answers Larger capacity, high pressure fuel trains are - Answer-more complex The main burner test firing valve should be opened - Answer-before starting the main burner What is the recommended boiler water pH for wet layup? - Answer-10 R4B Failure to _____ the furnace thoroughly before light-up can cause a furnace explosion. - Answer-purge R4B When cooling down a steam boiler that has been taken out of service, a vent valve on a steam drum sh...

Power Engineering 4th Class - Unit B5 Review Exam Questions And Answers 100% Pass R4B A steam boiler that is to be shut down for a long period of time should be: Select one: a. Drained, thoroughly dried, have desiccant placed inside, and closed up b. Left with the water at normal working level but opened up to atmosphere c. Left with the water at normal working level and pressurized with air to 50 kPa d. Filled completely with water and the vent left open to atmosphere for expansion - an...

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