Black Seal High Pressure Exams With 118 Questions And Answers

A change in temperature is an example of: {Ans: Sensible heat}What are the 4 fundamentals of combustion? {Ans: Mixture, Atomization, Time, Temperature}T or F: according to the regulation, a licensed operator on watch shall give constant attention and remain within sight and natural sound in both HP and LP boilers. {Ans: False}In a water tube boiler, the gases of combustion will pass: {Ans: Around the tubes}When making adjustments to the firing rate of a power boiler, why should the air be increased to the burner before the fuel? {Ans: to prevent incomplete combustion}Which two minerals contribute to scale? {Ans: Calcium and Magnesium}The Mechanical Inspection Bureau incorporates by reference various codes, standards and practices. Once specific safety practice incorporated by reference for licensed operators specifies and identifies one called a qualified individual. How is the qualified individual identified in this reference? {Ans: A boiler service technician who is engaged in and responsible for the installation, replacement, repair or service of the boiler, fuel burning controls, and safety devices and is experienced in such work. In some states this individual must also hold an appropriate boiler operator's license.}What are some advantages of steam heating systems?