Pass Benchmark: 70% (21/30) • Standard: USCG NMC / 46 CFR
USCG Steam Plants (Boilers & Turbines) (Set 23)
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Question 1 of 30
Which of the listed operating practices is considered as safe, and should be followed when opening and inspecting the waterside of a boiler?
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30 MCQs #1 Which of the listed operating practices is considered as safe, and should be followed when opening and inspecting the waterside of a boiler? #2 If a major flareback occurs to a boiler, which of the following actions should be immediately taken? #3 Which of the following actions should be carried out if the boiler water level is falling due to a tube failure? #4 Which action should be taken if the water level in the boiler gage glass drops out of sight and the burners fail to secure automatically? #5 Which of the casualties listed is apt to occur immediately after a high water casualty? #6 While underway, the boiler water level in a steaming boiler begins dropping rapidly and cannot be kept at the normal level by standard practices. The engineer's next action should be to __________. #7 Under EMERGENCY operating conditions, the proper valve positions for controlling feed water to the boiler should be the __________. #8 ) In the event of a failure of the pneumatic control system, a multi-element feed water regulator is designed to operate as a __________. #9 One boiler of a two boiler plant has ruptured a tube and the water cannot be maintained in sight in the gage glass. After securing the fires, your next action should be to __________. #10 When preparing to hydrostatically test water-tube boilers, you should __________. #11 Which of the following statements is true concerning boiler inspections? #12 According to 46 CFR Part 61, which of the following statements is true concerning the inspection of water-tube boilers? #13 Which of the following statements represents the Coast Guard Regulation regarding a boiler installation in which the superheater outlet temperature exceeds 850°F? #14 Which of the Coast Guard publications listed contain the information regarding allowable repairs to boilers installed on cargo vessels? #15 According to Coast Guard Regulations (46 CFR), which of the following is classified as a boiler mounting? #16 Coast Guard Regulations (46 CFR) state that main propulsion water-tube boilers are not required to be fitted with a surface blow off valve if the design pressure is __________. #17 Coast Guard Regulations (46 CFR Part 56) permit copper pipe to be used for steam service subjected to a maximum pressure and temperature of __________. #18 Coast Guard Regulations (46 CFR) regarding hydrostatic testing of main steam piping state that __________. #19 According to Coast Guard Regulations (46 CFR), which of the following steam piping conditions, subjected to main boiler pressure, is exempted from hydrostatic testing? #20 If the maximum steam generating capacity of a boiler is increased Coast Guard Regulations (46 CFR) require that the safety valve's __________. #21 Coast Guard Regulations, 46 CFR Part 54, require steam safety and relief valves to be provided with a substantial lifting device, capable of lifting the disc from its seat at what percentage of the set pressure? #22 Coast Guard Regulations (46 CFR) require that the final setting of boiler safety valves be conducted in presence of the __________. #23 The MAWP of a boiler is 900 psi and the normal drop across the superheater is 20 psi. If the superheater safety valve is set to lift at 825 psi, the minimum settings of the drum safety valves allowed by Coast Guard Regulations would be _______. #24 A boiler superheater safety valve is set to lift at 450 psi (3102 kPa). Coast Guard Regulations (46 CFR) require that if there is a pressure drop of 10 psi (69 kPa) across the superheater, the drum safety valve should set to lift at a pressure of __________. #25 The safety valve nominal size for propulsion boilers and superheaters must be not less than 1 1/2 inches and not more than 4 inches. The term 'nominal size' refers to the __________. #26 Coast Guard Regulations (46 CFR) concerning superheater safety valves require that the valve __________. #27 Coast Guard Regulations (46 CFR) concerning marine boilers, require the installation of a safety valve on the __________. #28 Coast Guard regulations require that the relieving capacity of boiler safety valves must be checked __________. #29 Coast Guard Regulations (46 CFR) permit repairs and adjustments to boiler safety valves while installed on a main propulsion boiler and may be made by ________. #30 Coast Guard Regulations (46 CFR) require the duplex fuel oil discharge strainers installed in boiler fuel oil service systems to be __________.
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