NAPE Engineer study guide for City of Omaha Exam Questions And Answers

NAPE Engineer study guide for City of Omaha Exam Questions And Answers 1. How can you lose your license?** Drinking on the job, sleeping on the job, negligence, unsafe work, signing a falsified license application, or failing to annually renew your license. 2. What must you do if you change jobs? You must notify city hall of change in address, change of jobs, or retirement. 3. Why should you do rounds?** To get familiar with your equipment and develop logs to prevent breakdowns. 4. What is a steam boiler?** A steam boiler is a closed pressure vessel partly filled with water that transforms water to steam with the application of heat. 5. What are the requirements of a good boiler? Simple/safe, Designed to accommodate expansion/contraction, adequate steam and water space, efficient, responsive to demands, and accessible for cleaning and repairs. 6. Name and describe three types of heat transfer in a boiler operation.** Radiant heat- transmitted from hot to cold surface such as the sun, Conduction heat- heat passed by physical contact such as coffee in a cup, and Convection heat- heat carried by a moving body such as water in a water heater. 7. What is a combustion chamber?** The area of the boiler where COMPLETE burning of the fuel occurs. 8. What is an internally fired boiler and name four types? Internally fired boilers have the grates and combustion chamber enclosed within the boiler shell. Four types are the Scotch marine boiler, vertical fire tube, locomotive, and cast iron package boilers. 9. What is an externally fired boiler and name four types?** Externally fired boilers have the setting including the furnace and grates separate and distinct from the shell. Four types are HRT set in brick work, some water tube boilers, Heine, and sterling.