Pass Benchmark: 70% • Standard: USCG NMC / 46 CFR
USCG Engine General (Supplementary) (Set 1)
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Question 1 of 30
If both the shell-and-tube lube oil cooler and shell-and-tube jacket water cooler of a diesel engine are seawater cooled, what statement is true?
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30 MCQs #1 If both the shell-and-tube lube oil cooler and shell-and-tube jacket water cooler of a diesel engine are seawater cooled, what statement is true? #2 What type of flow pattern would be associated with a forced-convection finned-coil heat exchanger such as an air-cooled hydraulic oil cooler? #3 If a seawater-cooled shell-and-tube lubricating oil cooler has the seawater inlet and outlet connections on the opposite end water boxes, in terms of the number of passes, what statement is true? #4 In the system illustrated, which of the following readings should be indicated on the pressure gage, if the load (x) is 8000 lbs (3632 kg) and the piston area (y) is 10 sq. in (64.5 sq. cm)? GS-0062 #5 Which characteristic or condition will have the greatest effect on increasing a hydraulic oil's viscosity? #6 The illustrated hydraulic pump graphic symbol is used to depict a __________. GS-0098 #7 An arrow superimposed on a hydraulic graphic symbol at approximately 45°, as shown in the illustrated figures A, B, and C, indicates the component __________. GS-0068 #8 Item "F" shown in the illustration represents two hydraulic pumps that are __________. GS-0103 #9 The illustrated hydraulic pump graphic symbol is used to depict a/an __________. GS-0097 #10 Item "B" shown in the illustrated hydraulic circuit is used to __________. GS-010
Illustration GS-010: the U.S. Coast Guard has not released this illustration. #11 Of the hydraulic tubing fittings illustrated, the flared fitting for high pressure use is represented by figure __________. GS-010
Illustration GS-010: the U.S. Coast Guard has not released this illustration. #12 The discharge capacity of the axial piston hydraulic pump, shown in the illustration, is __________. GS-0058 #13 In a hydraulic system using the device illustrated, the high pressure return is provided by __________. GS-0118 #14 Which of the following direct-reading pressure gauges is capable of measuring and displaying both positive and negative pressures? #15 Which of the following direct-reading pressure gauges is capable of measuring and displaying two pressures simultaneously? #16 Which of the following direct-reading pressure gauges is capable of measuring two pressures and displaying the difference between the two? #17 Which of the following direct-reading gauges would most likely be used in the application of a pump suction pressure gauge? #18 What type of direct reading thermometer works on the principle of thermal volumetric expansion of a liquid as the temperature rises and features a linear scale? #19 What is the application for a temperature measuring device known as a thermocouple pyrometer? #20 What statement best represents the characteristics of an ullage tape and bob for the purposes of taking a vented tank sounding? #21 When determining the level of a potable water hydro pneumatic header tank fitted with a tubular sight glass, what must be taken into consideration? #22 Which of the following measurements would be an example of total flow? #23 Which of the following measurements would be an example of flow rate? #24 Which of the following is an example of a flow meter which has associated with it a float for flow indication purposes? #25 For any piece of equipment requiring lubrication, what is the single most important lubricating oil property in meeting the operating conditions? #26 If an engine lubricating oil's viscosity is given as 20W-50, what does this mean? #27 An air compressor is equipped with an intercooler and an after cooler to __________. #28 For any given volume of compressed air produced by a multistage air compressor, interstage cooling will __________. #29 The usual method of unloading a low pressure air compressor at start-up is accomplished by __________. #30 One of the functions of the component labeled "E", shown in the illustration, is to __________. GS-0119
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