Pass Benchmark: 70% (21/30) • Standard: USCG NMC / 46 CFR
USCG General Subjects (Auxiliaries & Systems) (Set 34)
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Question 1 of 30
The efficiency and output capacity of a low pressure distilling plant will be reduced if the last effect shell __________.
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30 MCQs #1 The efficiency and output capacity of a low pressure distilling plant will be reduced if the last effect shell __________. #2 Air leaking into a flash type distilling plant could occur through __________. #3 Irregular feeding or surging of the feed water supply to a flash evaporator may be attributed to __________. #4 While the illustrated system is operated using the steam supply through "F" the strainer in line "4" becomes fouled, this will result in __________. Illustration GS-0053 #5 Regarding a freshwater generator of the reverse-osmosis type, what statement is true? #6 When securing a flash-type evaporator for an extended period of time, you should __________. #7 When performing a hydrostatic test on a low pressure evaporator to determine the source of suspected air leaks you should use __________. #8 Sacrificial zinc anodes are used on the saltwater side of heat exchangers to __________. #9 On which of the following heated surfaces of a flash type evaporator would you be more likely to find soft scale formation? #10 In the operation of a two-stage flash type distilling plant, the rate of scale formation is greatly reduced by __________. #11 For a typical diesel engine jacket water cooling system, what location would be generally used to introduce water treatment chemicals? #12 Referring to the illustrated steam plant sea water cooling system drawing, which pump can be used to pump out the main machinery space bilge in a flooding emergency? Illustration SP-SW-01
Illustration SP-SW-01: the U.S. Coast Guard has not released this illustration. #13 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? #14 Referring to the illustrated motor ship fresh water cooling system drawing, what statement is true concerning the turbocharger bypass line associated with the jacket water cooling system? Illustration MP-CW-06
Illustration MP-CW-06: the U.S. Coast Guard has not released this illustration. #15 As it pertains to the automatic electric brake of a horizontal electro-mechanical anchor windlass, what statement is true? #16 A horizontal electro-mechanical anchor windlass is equipped with two warping heads, two wildcats, two manual brake hand wheels, two clutch control levers, and a multipoint lever-operated, pedestal-mounted controller. What statement is true as it pertains to the operation of the warping heads and wildcats? #17 As it pertains to a "constant-tension" mooring winch, what statement is true? #18 Which capstan drive arrangement requires a flexible coupling between the reduction gear output shaft and the capstan head input shaft? #19 What statement is true concerning the platform interlock devices associated with a winding drum or traction drive cargo elevator onboard ship? #20 For an electro-hydraulic cargo-handling pedestal-type deck crane, what event would result in an immediate stop to all crane motions, including slewing, hoisting, and luffing? #21 If a hydraulic pump is overheating, the cause may be __________. #22 If a hydraulic pump sounds like it is pumping rocks when in operation, the problem is most likely ________. #23 If a hydraulic pump is producing a noisy whine when in operation, the cause may be __________. #24 Overheating of the oil in a hydraulic system can be caused by __________. #25 Hydraulic machinery failures are commonly caused by misalignment of the system components and by __________. #26 Overheating of a hydraulic system may be a result of __________. #27 If you attempt to tighten a leaking hydraulic fitting with pressure on the system, you will __________. #28 When normal operating pressure is applied to the hydraulic oil in a high-pressure system, the oil __________. #29 When new piping sections have been fabricated for installation in a hydraulic system, prior to installation the piping should be __________. #30 Before doing any work on a hydraulic system equipped with accumulators, you should __________.
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