Arkansas Boiler Operator Study Questions | 100% Correct Answers | Verified | Latest Update

Arkansas Boiler Operator Study Questions | 100% Correct Answers | Verified | Latest Update A steam valve should be opened slowly? - ANSWER -True Improper mixtures of gas and air causes soot in boiler flues - ANSWER -True What is a water injector (feed pump)? - ANSWER -A mechanical device for forcing water into a boiler against high pressures. What is the purpose of a baffle wall in a boiler? - ANSWER -To distribute flame evenly. If a boiler is not kept clean internally, scales will form and cause the boiler not to blister - ANSWER -False A boiler operator operating a boiler without a license shall be guilty of a misdemeanor and upon conviction thereof shall be punished by a fine of not less than $25.00 and not more than $100.00, and in addition may be imprisoned for not more than 2 years, or both. - ANSWER -True A boiler operator must have the following number of months on-the-job training before he can take the operator's examination. - ANSWER -6 months minimum Water boils at what temperature? - ANSWER -212F If you went into a boiler room and the fire was on, and there was not water in the boiler, you should immediately add water? - ANSWER -False In a fire tube boiler the water flows through the tubes? - ANSWER -False In a water tube boiler the fire passes through the tubes? - ANSWER -False What are the two basic types of boilers? - ANSWER -Fire tube and water tube. A gauge glass allows you to see how much water is. - ANSWER -True What is the purpose of a safety relief valve on a boiler? - ANSWER -To relieve the boiler pressure when it exceeds the MWAP (maximum allowable working pressure) and thereby prevent an explosion. What is induced draft? - ANSWER -Fan or fans on the exhaust side of boiler pulling air through the boiler. Should a pressure relief valve open when the MWAP is exceeded by 6 percent? - ANSWER -Yes Which valve is between the boiler and the return pump? - ANSWER -Check Valve What is the the function of the check valve? - ANSWER -To prevent the water from returning to the condensation tank from the boiler after the pump shuts off. Four safety features required on the steam boiler are: - ANSWER -Safety relief valve, blow-down valve, low water cut-off, and pressure gauge. Safety relief valves should be set by: - ANSWER -Qualified safety valve technician/firm. Which pressure is considered to be that of a low-pressure boiler? - ANSWER -0- 15 PSI MAWP What could happen if a steam valve is open too quickly? - ANSWER -Water could be siphoned out of the boiler causing damage to the boiler and steam lines. Why are steam lines insulated? - ANSWER -To prevent loss of heat during steam transfer. What operating pressure indicates a high pressure boiler? - ANSWER -16 PSI and above A boiler operator operating a boiler that he knows is unsafe may, or may NOT have his licence revoked. - ANSWER -False Which type of material is used for the boiler gaskets? - ANSWER -Asbestos or neoprene The main purpose of draining the glass gauge is to verify that the pipes to the drain are clean and open. - ANSWER -True A steam trap is a device used to release condensation and hold steam in a radiator or return line. - ANSWER -True Water is changed to steam by: - ANSWER -Application of heat A safety device used to cut fuel to the boiler when the water level falls below a safe level. - ANSWER -Low-water cut-off A low-water cut-off device does not affect the fuel to the boiler when the water level drops - ANSWER -False Valves on the water column to check the accuracy of the glass gauge and determine the water level in the boiler, when glass is suddenly broken are called: - ANSWER -Gauge cocks You cannot check a safety valve by opening it at full working pressure. - ANSWER -False A boiler is used for what purpose? - ANSWER -To produce steam or hot water for heat. The three most common fuels for firing boilers are coal, gas, and oil. - ANSWER - True The parts of a high-pressure boiler containing pressure (not fitting or appliances) are made out of: - ANSWER -S