Pass Benchmark: 70% • Standard: USCG NMC / 46 CFR

USCG Engine General (Supplementary) (Set 13)

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Question 1 of 30

Which of the statements is true concerning the illustrated hydraulic circuit when the directional control valve is centered? GS-0105

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30 MCQs

#1 Which of the statements is true concerning the illustrated hydraulic circuit when the directional control valve is centered? GS-0105 #2 If solenoid "A" illustrated is energized, the __________. GS-0041 #3 In a hydraulic system using the device illustrated, the high pressure return is provided by __________. GS-0118 #4 If you attempt to tighten a leaking hydraulic fitting with pressure on the system, you will __________. #5 How can the chance of contaminating hydraulic fluid be decreased when working on hydraulic systems? #6 In which lubrication application is a detergent type oil most likely to be used? #7 What is the operating principle of detergent type lubricating oil that provides the oil with its unique properties? #8 With respect to lubricating oils, what statement is true concerning viscosity and viscosity index? #9 Which statement is true concerning alkaline reserve as it applies to a lubricating oil? #10 In which lubrication application is a lubricating oil with an alkaline reserve most likely to be used? #11 A bearing using an oiling ring as a means of static oil feed must occasionally be serviced by removing the wear particles, grit, and moisture. How is this accomplished? #12 On a bearing using an oiling ring as a means of static oil feed, at what oil level is the bearing maintained? #13 On a bearing using an oiling ring as a means of static oil feed, how often should the bottom of the bearing sump be drained of impurities? #14 If the bearings of a piece of machinery are fed by a gravity feed lubricating oil system, what statement is true? #15 If the bearings of a piece of machinery are force-fed by a pressure feed lubricating oil system, which statement is true? #16 If the bearings of a piece of machinery are fed by a gravity feed lubricating oil system, what statement is true concerning the vertical arrangement of the lube oil tanks? #17 On a bearing using an oiling ring as means of static oil feed, unless adverse conditions would indicate otherwise, how often should the oil be completely changed at a minimum? #18 Which type of lubricating oil method is LEAST likely to have a lube oil strainer or filter? #19 In a forced-feed lubrication system, what statement is true concerning lube oil reservoir/sump residence time? #20 In a forced-feed lubrication system, what statement is true concerning lube oil reservoir/sump residence time? #21 Adsorption filters are not commonly used in steam turbine or diesel engine lubricating systems because they __________. #22 The greatest difference between absorbent and adsorbent filters is that absorbent filters __________. #23 Which of the following statements best describes the straining ability of a fine mesh metal lube oil strainer? #24 Which of the following lube oil filters would be considered acceptable for use with today's high detergent additive type oils? #25 Which of the filter/strainer units listed permits you to replace or clean the element while leaving the system on the line? #26 Which of the following types of diesel engine lubricating oil filtration schemes must be equipped with a bypass relief valve to insure that the engine bearings are not starved of oil if the filter element should become severely restricted or blocked? #27 Which of the following types of lubricating oil filters is not fitted with a replaceable filter element and is serviced by cleaning? #28 What type of diesel engine lubricating oil filtration scheme filters the entire output of the lubricating oil pump prior to delivery to the lubricating oil supply manifold of the engine? #29 What type of diesel engine lubricating oil filtration scheme filters a small portion of the output of the lubricating oil pump prior to delivery back to the sump via a fine filter? #30 What is the BEST indication that a diesel engine full-flow lubricating oil filter must be serviced?

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