Pass Benchmark: 70% • Standard: USCG NMC / 46 CFR
USCG Engine General (Supplementary) (Set 25)
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Question 1 of 30
As it pertains to the hoist motion limits associated with an electro-hydraulic cargo- handling pedestal-type deck crane, which statement is true?
Browse Questions in Set 25
30 MCQs #1 As it pertains to the hoist motion limits associated with an electro-hydraulic cargo- handling pedestal-type deck crane, which statement is true? #2 Concerning a conventional mooring winch, what statement is true? #3 As it pertains to the automatic hoist winch brake of an electro-hydraulic cargo-handling pedestal-type deck crane, what statement is true? #4 What statement is true concerning the door interlock devices associated with a winding drum or traction drive passenger elevator onboard ship? #5 A solenoid direct-acting three-position spring-centered directional control valve is used in a hydraulic system to control a linear actuator. When the remote push button is depressed to extend the actuator it fails to move, even though the pump is in operation. Which of the following statements represents the cause? #6 If the pump in a hydraulic system produces a low rumbling noise while in operation, this is a probable indication of __________. #7 If the operating pressure is determined to be normal in the system shown in the illustration, yet the crane does not swing (slew) in either direction when the directional control valve is operated, the problem could be ________. Illustration GS-0161 #8 Increased internal leakage, in addition to poor hydraulic system response, and inadequate lubrication, is the result of __________. #9 Cavitation in a hydraulic pump is indicated by noisy pump operation and can be caused by a/an __________. #10 New piping and tubing to be installed in a hydraulic system can be safely degreased by using __________. #11 How can the chance of contaminating hydraulic fluid be decreased when working on hydraulic systems? #12 Purging air from a hydraulic system is necessary when __________. #13 A hydraulic flow control circuit is shown in the illustration, and is known as a __________. GS-0107 #14 A hydraulic fluid flow control circuit, controlling linear actuator speed, with the pump operating below maximum operating pressure is known as the __________. #15 A hydraulic system flow-control circuit is shown in the illustration and is known as a __________. GS-0105 #16 Adsorption filters are not commonly used in steam turbine or diesel engine lubricating systems because they __________. #17 The greatest difference between absorbent and adsorbent filters is that absorbent filters __________. #18 Which of the following lube oil filters would be considered acceptable for use with today's high detergent additive type oils? #19 The components indicated as "7" and "8" as shown in the illustration, are known as the __________. GS-0153 #20 The function of item "7" shown in the illustration is to __________. GS-0153 #21 The component labeled "A", as shown in the illustration, would be identified as the __________. Illustration GS-0175 #22 The line labeled "E", as shown in the illustration, would be identified as the ______. GS-0175 #23 Referring to the illustration, note that the solenoid in line "C" is closed. The check valve in line "E" is open. The separator service pump is running. The check valve in line "G" is closed. Valve "B" is open. Valve "D" is closed. What is the operational status of the oily-water separator unit? Illustration GS-0175 #24 Referring to the illustration, an oil-water separator is in the re-circulation mode due to high oil content of the processed water outlet. What action may be required before the unit is capable of discharging overboard once again? GS-0175 #25 Referring to the illustration, what would be the result if the upper oil/water interface detection probe became faulty? GS-0175 #26 If item "1" in the illustrated oily water separator indicates an abnormally deep vacuum, which of the following conditions is the most probable cause? Illustration GS-0153 #27 Referring to the illustration, suppose the oily-water separator vessel compound gauge is showing an unusually deep vacuum for operating in the separation processing mode with the separator service pump running. The oil content is 8.3 ppm. What is most likely the cause? GS-0175 #28 Referring to the illustration, suppose after initiating the oil discharge mode, the oily- water separator fails to come out of the oil discharge mode in a timely fashion. Cracking open the upper sampling valve reveals the presence of water exiting under a positive pressure. What is most likely the cause? GS-0175 #29 Referring to the illustration, suppose after initiating the oil discharge mode, the oily- water separator fails to come out of the oil discharge mode in a timely fashion. Cracking open the upper sampling valve reveals the presence of oil exiting under positive pressure. What is most likely the cause? Illustration GS-0175 #30 Referring to the illustration, suppose while in the oil separation processing mode, the oil content detector display screen shows 17.9 ppm and the oily-water separator is discharging back to the bilge water holding tank for re-circulation. What is most likely the cause? Refer to Illustration GS-0175
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