Assistant Engineer – Limited Practice Test

1. 1. What makes diesel engines classified as internal combustion engines?
2. 2. The pressure-volume diagrams illustrated are of four internal combustion engine cycles. Which one represents the theoretical diesel cycle? Illustration MO-0102
3. 3. On an opposed-piston engine, which of the listed operating conditions will result from increasing the lower crank lead?
4. 4. Which of the following is the time between injection and ignition of fuel?
5. 5. What is the result of bearing "crush" as applied to diesel engine main bearings?

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1. 1. When vapor is in contact with and remains at the same temperature as the boiling liquid from which it was generated, the vapor and liquid are said to be in whic...
2. 2. According to the data given in the illustration, which of the following would be the physical state of the fluid at a gauge vacuum of 25.03 inches Hg, and 126.0...
3. 3. Which of the listed conditions can cause high superheater outlet steam temperature in an automated boiler?
4. 4. In a boiler equipped with a convection type superheater, the superheater tubes are located __________.
5. 5. Which color burner flame would indicate too much excess air?

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1. 1. Which of the listed sequence of events occurs when an automatic auxiliary boiler is prepurged?
2. 2. Large steam drums are not required in the design of a coil-type auxiliary water-tube boiler because __________.
3. 3. When preparing to light off a cold boiler equipped with a return flow fuel oil system, the recirculating valve directs the flow of oil __________.
4. 4. The purpose of the separating nozzle in the accumulator of a water-tube, coil-type, steam generator is to separate __________.
5. 5. The tube sheets installed in a fire-tube auxiliary boiler are normally connected by __________.

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1. 1. What is meant by the term independent bilge suction?
2. 2. Regarding a ballast system associated with a dry cargo ship, what is the primary purpose of the fore peak and aft peak tanks?
3. 3. If a belt-driven reciprocating air compressor is operating at a lower than design displacement capacity (in cubic feet per minute), which of the following would...
4. 4. Which of the following compressors would be used for a dead ship start-up of a ship's service diesel- generator on a motor ship?
5. 5. As an indication that an air compressor air intake filter needs to be replaced or cleaned, what statement is true?

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1. 1. Cross flooding may __________.
2. 2. Progressive flooding in the engine room may be minimized by securing watertight boundaries and __________.
3. 3. Which of the methods shown in the illustration is the correct way to fit shoring? Illustration SF-0016
4. 4. After measuring the length to which a section of shoring should be cut, you should cut the shoring __________.
5. 5. To activate an air regeneration canister on a survival craft, you __________.

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1. 1. Which of the electrical properties listed will always be the same across each component in a parallel circuit?
2. 2. Referring to figure "B", what statement is TRUE?
3. 3. What statement is true concerning the total resistance of a parallel circuit?
4. 4. What would be the total capacitance of the circuit illustrated in figure "A" if the value of capacitor C1 was 100 microfarads and capacitor C2 was 200 microfara...
5. 5. In the schematic of the electrical circuit shown in figure "A" of the illustration, what is the value of the total capacitance, when compared to the value of eq...

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