Boiler Exam Prep 2023 Solved 100% Correct

One boiler horsepower is equal to how many BTU? - ANSWER-33,472 A British Thermal Unit is? - ANSWER-The amount of heat needed to raise one pound of water one°Fahrenheit. Hydronic heat is? - ANSWER-Hot water heat. Superheated steam is? - ANSWER-Reheated steam. 2545 BTUH represents? - ANSWER-1 horsepower-hour. A throttling calorimeter is used to measure the quality of? - ANSWER-Saturated steam. Boiler tube sizes are specified by? - ANSWER-Outside diameter. The maximum size of boiler blowdown lines, valves, and fittings shall not exceed? - ANSWER-2-1/2 inches. The purpose of an expansion tank in a hot water heating system is to provide for the expansion of? - ANSWER-Water. Heavy accumulation of soot in a boiler will result in? - ANSWER-Loss of boiler efficiency. How are the tubes secured in a fire-tube boiler? - ANSWER-Rolled and beaded over. A tube in a fire-tube boiler is surrounded by ? - ANSWER-Water. Atmospheric pressure is considered to be? - ANSWER-14.7 psia. What is required to raise the temperature of 1 lb of water from 32° to 212 ° F? - ANSWER-180 BTU. Increasing the pressure has what effect on the boiling point of water? - ANSWER-Temperature will be raised. Heat absorbed by water when it changes from liquid to steam at the boiling point is called? - ANSWER-Latent heat. Heat may be transferred in how many ways? - ANSWER-3, conduction ,convection ,radiation. A boiler horsepower is defined as? - ANSWER-Evaporation of 34.5 Lb of water from and at 212 °F per hour.