Pass Benchmark: 70% (21/30) • Standard: USCG NMC / 46 CFR

USCG General Subjects (Auxiliaries & Systems) (Set 18)

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Question 1 of 30

What operating condition (or conditions) would necessitate shifting from a low sea suction to a high sea suction for a machinery space sea water cooling system?

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30 MCQs

#1 What operating condition (or conditions) would necessitate shifting from a low sea suction to a high sea suction for a machinery space sea water cooling system? #2 What provision is made for sea chests for removal of solid debris restricting the entry grating into the sea chest of a machinery space sea water cooling system? #3 What provision is made for sea chests for removal of air ingested into the sea chest of a machinery space sea water cooling system? #4 What provision is made for sea chests for removal of ice from within the sea chest of a machinery space sea water cooling system during operation in icy waters? #5 For a typical diesel engine jacket water cooling system, what location would be generally used to introduce water treatment chemicals? #6 In accordance with federal regulations under 33CFR Subchapter O, for oceangoing ships of less than 400 gross tons, what is the required means for preventing pollution by oil as it pertains to handling bilge slops? #7 Under the international MARPOL regulations under Annex IV, if the ship is less than 3 nautical miles from the nearest land, what statement is true? #8 Under the international MARPOL regulations under Annex IV, if the ship is more than 3, but less than 12 nautical miles from the nearest land, what statement is true? #9 Under the international MARPOL regulations under Annex IV, if the ship is more than 12 nautical miles from the nearest land, what statement is true? #10 Which of the following fire extinguishing agents which may be found aboard ship is designated as an ozone-depleting substance as defined in the Montreal Protocol on Substances that Deplete the Ozone Layer and is controlled as a result? #11 Which of the following refrigerants which may be found aboard ship is designated as an ozone-depleting substance as defined in the Montreal Protocol on Substances that Deplete the Ozone Layer and is controlled as a result? #12 In accordance with the international MARPOL Annex VI regulations, the nitrous oxide (NOx) emissions associated with certain diesel engines are required to operate under certain acceptable limits. To which of the listed engine applications would the NOx emission regulations apply? #13 The main difference between a common lathe dog and a safety lathe dog is that the latter __________. #14 To obtain a 1/2 inch per foot taper on an 18 inch work piece, the tailstock of the lathe must be set over __________. #15 If you are machining work held between lathe centers, and the lathe centers begin to squeal, you should first __________. #16 A follower rest should be used with a lathe to machine __________. #17 A work piece has been mounted between centers and a test cut machined at each end to check alignment of the lathe centers. If the test cut on the tailstock end is deeper than the test cut on the headstock end, the tailstock must be moved __________. #18 When drilling holes larger than 1/2 inch, drilling a smaller hole first is a good practice. This is called a pilot hole, and the pilot drill should have a diameter __________. #19 Which material can be drilled at the highest speed? #20 One of the steps required to increase the drilling speed of a drill press is to __________. #21 A tapered shank drill is removed from the drill press spindle with a __________. #22 Which of the listed metals can usually be drilled without lubrication? #23 Before boring a blind tapered hole, a good shop practice to follow is to __________. #24 A command signal input to the steering gear has initiated rudder movement for 20° right rudder. The follow-up mechanism at the beginning of the rudder movement will __________. Illustration GS-0123 #25 Rudder position is shown on the bridge by the __________. #26 When the helm angle position is changed, the series of corresponding events of the steering gear will include __________. I. rate of steering gear ram movement will be proportional to amount of helm angle input II. degree of tilting plate (box) angle will be proportional to the amount of helm angle input #27 In an electro-hydraulic steering system, damage due to rudder shock is prevented by __________. #28 The device shown in the illustration is a/an __________. GS-0116 #29 As a result of a load or set point change, in addition to minimizing the maximum value of the error, what are the two additional objectives of a closed-loop control system? #30 In a closed-loop process control system, what is meant by the proportional mode of control?

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