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

USCG General Subjects (Auxiliaries & Systems) (Set 27)

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Question 1 of 30

Which type of Marine Sanitation Device (MSD) is used solely for the storage of sewage and flush water at ambient air pressure and temperature?

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30 MCQs

#1 Which type of Marine Sanitation Device (MSD) is used solely for the storage of sewage and flush water at ambient air pressure and temperature? #2 When heated, fuel oil will __________. #3 The main reason for having a low suction line on the fuel oil service or settling tanks is to __________. #4 What application often requires a valve to be remotely operated from a control station, where the valve itself is operated by an electric, pneumatic, or hydraulic motor? #5 Where is the location of a chain-operated valve when a chain wheel is attached to the stem and is associated with an endless chain for operation? #6 What is the purpose of the torque limit switch as fitted on an electric motor operated rising stem gate valve? #7 Remote valve operators are frequently fitted with a hand wheel for local operation if the motor fails. If this is so, what is the procedure for local manual control? #8 On vessels exceeding 1600 GRT, who is responsible for the practical upkeep of machinery and the manning of the engine room? #9 The welding symbol reference line using the inverted "V” indicates __________. Illustration GS-0076 #10 When arc welding, the flux that covers the electrode is used to __________. #11 A weld with triangular cross sections is used to join two surfaces at right angles to each other, and is called a __________. #12 In the illustration, the welded neck flange is attached to the pipe by a __________. Illustration GS-0078 #13 Which illustration correctly depicts a double bevel groove weld? Illustration GS-0077 #14 Which of the following procedures would be correct when first lighting-off an oxyacetylene torch? #15 With reference to the oxyacetylene welding of high carbon steels, hard-facing, and the welding of non-ferrous alloys, such as monel, the best flame to use is termed a/an __________. #16 The lathe tool shown as figure "N" in the illustration is commonly known as a/an __________. Illustration GS-0090 #17 The angle "A" shown on the illustrated lathe tool bit is properly called the __________. Illustration GS-0164 #18 Which of the metals listed below can be cut with the highest operating lathe speed? #19 The 60° taper angle machined on work supported by lathe centers is most easily machined by the __________. #20 To properly cut even numbered threads using the lathe thread dial indicator shown in the illustration, you should close the lathe split or half-nut on __________. Illustration GS-0084 #21 Two separate work pieces are to have a taper cut with the same taper per inch, using the offset tailstock method. After the first piece is completed, the tailstock offset must be changed if there is a change in the __________. #22 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 __________. #23 When a lathe is used for thread cutting, the number of threads per inch produced is determined by the speed relationship between the __________. #24 To commence cutting threads with a metal lathe, you should engage the __________. #25 To properly cut an odd numbered thread with a lathe using the thread dial indicator illustrated, you should close the lathe split, or half-nut on __________. Illustration GS-0084 #26 If you are cutting off a piece of stock in a lathe and the work piece tends to climb over the top of the cutoff tool, you should __________. #27 What is the reading of the vernier micrometer caliper scale shown in figure "G" in the illustration? Illustration GS-0083 #28 A reading of 0.625 inch on a micrometer with a 2 to 3 inch range would be equal to __________. #29 The reading on the vernier caliper scale shown in figure "G" in the illustration is __________. Illustration GS-0082 #30 For greater accuracy, some micrometers have a vernier scale making it possible to read in increments of __________.

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