Pass Benchmark: 70% • Standard: USCG NMC / 46 CFR
USCG Engine Safety (Supplementary) (Set 12)
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Question 1 of 24
Which of the following is necessary for all waste heat boiler installations, regardless of design or manufacturer?
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24 MCQs #1 Which of the following is necessary for all waste heat boiler installations, regardless of design or manufacturer? #2 As shown in the illustration, the function of component "1" is to ________. MO-0128 #3 As shown in the illustration, what component would normally be installed at location "D" ? MO-0128 #4 As shown in the illustration, the component labeled "H" would be identified as a ________. MO-0128 #5 A photoelectric cell installed in an automatically fired auxiliary boiler burner management system __________. #6 During unsafe firing conditions in a large automatic auxiliary boiler, various control actuators are interlocked with the burner circuit to prevent start-up, in addition to safety shutdown. These controls are referred to as __________. #7 In the water level electrode assembly, shown in the illustration, the feed pump should restart when the level of the water reaches the position indicated by arrow '____'. MO-0047 #8 Which of the following types of feed water regulators is commonly used with a water-tube, natural circulation, auxiliary boiler? #9 Heavy soot accumulations in an auxiliary boiler could be caused by __________. #10 A burner producing black smoke in an automatic auxiliary boiler, would be caused by a/an __________. #11 When checking for the presence of sulfite in the feed water of an auxiliary boiler, you are in essence checking __________. #12 The starter control valve in the hydraulic system shown in the illustration is malfunctioning. Before removing the valve, you must first __________. MO-0049 #13 An immediate repair is required if a leak occurs in the high pressure fuel piping between the injection pump and fuel nozzle because of the __________. #14 What is the best way of stopping an over speeding diesel engine? #15 Oil in a scavenging air space on a slow speed diesel engine can be ignited by which of the following? #16 Coast Guard Regulations (46 CFR Part 56) require steel tubing connections and fittings used with diesel fuel oil systems, to be either flared or __________. #17 A propulsion engine, using the speed control circuit shown in the illustration, fails to function at speeds lower than the low end of the critical speed range. Which of the following statements describes what should be done to correct this malfunction? Illustration MO-0114 #18 The pneumatic circuit shown in the illustration is part of a complex large low speed engine control system. Which of the following statements describes the function of this circuit? Illustration MO-0117 #19 If the input signal rises above the set point of '17A', shown in the illustration, but remains below the set point of '17B', the output from '22A' will __________. Illustration MO-0114 #20 Which of the operating positions, for valve "A" shown in the illustration, should be chosen to maintain the circuit in continuous flow, regardless of failure to the included downstream components? Illustration MO-0115 #21 Which of the following statements describes the primary reason for the device shown in the illustration to be incorporated into the air start system? Illustration MO-0116 #22 The reversing cams of some four-stroke/cycle diesel engines are brought into position by __________. #23 Direct reversible main propulsion diesel engines would normally be fitted with a/an __________. #24 The direct acting mechanical governor used with some small diesel engines, controls fuel flow to the engine by __________.
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