Power Engineering 4A - Test Review 4 Verified Solutions

Power Engineering 4A - Test Review 4 Verified Solutions The typical time required to heat a fluidized bed to ignition temperature prior to the introduction of coal is: Select one: a. Two hours b. Three hours c. One hour d. 30 minutes C When welding thick materials, proper weld groove selection and preparation allows for: Select one: a. a quick weld b. proper heat treatment c. full penetration d. omitting the root pass C An interrupted pilot of an automatic boiler: Select one: a. Ignites, is proven stable and extinguishes after the main flame is established b. Is one that has been extinguished by an inadequate flame signal c. Ignites before the main burner ignites, and is extinguished when the main burner is extinguished d. Burns continuously, like that in a home furnace A In a fluidized bed boiler, a gradual loss of the fluidized bed, including fuel (carbon) particles, is due to: Select one: a. Priming b. Sootblowing c. Uplift d. Carryover D The test material for a penetrant test (PT) must be: Select one: a. ferrous b. non-ferrous c. porous d. non-porous D If your plant maintenance department neglects oil changes, filter replacement, and bearing lubrication, your plant will eventually need more unscheduled ___________ maintenance. Select one: a. Emergency b. Preventative c. Routine d. Project A The holder of a Certificate of Competency, the classification of which authorises him or her to act as a engineer, may sketch, construct, install, operate, repair, and give advice on all things pertaining to any _____ in which that person is employed. Select one: a. Welding shop b. Power plant c. Fish plant d. Hydro plant B Which of the following is a single pass boiler? Select one: a. HRT b. Scotch marine c. Packaged firetube d. Vertical firetube D Iron and steel may be magnetized by rubbing the metal with a: Select one: a. Stainless steel b. Steel wool c. Brass rod d. Magnet D The apparatus which converts current signals to pneumatic and pneumatic to current signals is called a: Select one: a. Transformer b. Inverter c. Transducer d. Converter C Before a steam or air atomizing oil burner is removed from a boiler furnace, the burner should be blown