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64 Study > Engineering > Flashcards

Engineering Flashcards

1
Q

How long to allow engines to cool prior to shut down?

A

At least 3 minutes

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2
Q

Backflush max RPM

A

1000 no more than 30 seconds

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3
Q

Normal MDE oil pressure

A

116-131 psi

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4
Q

Normal MDE water temp

A

176-185°F

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5
Q

Normal R/G pressure engaged

A

260-304 psi

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6
Q

Normal R/G pressure disengaged

A

50-90 psi

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7
Q

Normal engine RPM range

A

2300-2500

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8
Q

Disabling MDE oil pressure

A

<81 psi

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9
Q

Disabling MDE water temp

A

<104°F and >208°F

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10
Q

Major MDE water temp

A

190-198°F

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11
Q

Restrictive MDE water temp

A

199-207°F

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12
Q

Disabling R/G pressure engaged

A

<230 psi and >310 psi

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13
Q

Restrictive MDE RPM

A

<2300

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14
Q

Normal engine RPM

A

2450 RPM

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15
Q

Disabling surge

A

over 50 RPM

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16
Q

Disabling F/O dilution

A

5% or above

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17
Q

Hot surface

A

over 400°F

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18
Q

Disabling F/O leak

A

If on a hot surface

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19
Q

Restrictive F/O leak

A

One drop within 10 minutes

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20
Q

Restrictive J/W, R/W, L/O, Hydraulic fluid, or gear oil leak

A

More than 15 drops per minute

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21
Q

What does the engine designation mean?

A

10 cylinder
V configuration
2000 series
Model 92

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22
Q

Rotation of engine

A

Counterclockwise from rear of engine

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23
Q

Horsepower

A

1360

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24
Q

Cruising speed

A

21 kts @ 2150 RPM

25
Q

Max speed

A

30+ @ 2450 RPM

26
Q

Engine oil

A

21.4 gallons 15W40

27
Q

Jacket water capacity

A

30.1 gallons

28
Q

Normal oil PSI

A

116-131 cruising

36 @ idle

29
Q

Disabling oil PSI @ cruising

A

81 PSI

30
Q

Max RPM operating on one strainer

A

1900

31
Q

Crossover valve purpose

A

Allow both MDEs to operate on a single strainer

32
Q

MDE heat exchanger type

A

Plate cooler

33
Q

Thermostats temps

A

1st and 2nd opens at 167°F

3rd open at 174°F

34
Q

Plate cooler is made from what?

A

Titanium

35
Q

What is the generator engine?

A

Diesel engine: Lugger M20CRW2.2

36
Q

Generator horsepower

A

32

37
Q

Generator # of cylinders

A

4

38
Q

Generator oil

A

2.1 gallons 15W40

39
Q

Generator power provided

A

20 kW

120v/240v

40
Q

Transformer purpose

A

Isolate the boats VAC systems from the shore power lines for safety and corrosion control purposes

41
Q

What does the transformer have on the output line?

A

100 amp circuit breaker

42
Q

12v battery charger location

A

Engine room aft bulkhead above exhaust stbd side

43
Q

24v battery charger location

A

Engine room aft bulkhead above exhaust port side

44
Q

Normal fuel load

A

1200-1300 gallons

45
Q

Primary fuel filter rating

A

10 micron

46
Q

R/G oil

A

5.5 gallons 15W40

47
Q

Jet drive HPU fluid capacity

A

.4 liters

48
Q

Jet drive bearing oil capacity

A

2 liters

49
Q

Air compressor max psi

A

150

50
Q

Collar relief valve

A

Opens at 1.3 to 1.5 psi

Closes at 1 psi

51
Q

Bilge pump activation level

A

2.5”

52
Q

Bilge pump deactivation level

A

1.5”

53
Q

What is FM-200?

A

Heptafluoropropane

54
Q

At high temps, FM-200 will decompose and produce ___

A

Hydrogen fluoride

55
Q

FM-200 capacity

A

47.5 lbs per cylinder = 95 lbs total

56
Q

What temp will trigger the FM-200?

A

175°F

57
Q

When will the heat detectors activate?

A

190°F

Heat rise greater than 12°/min

58
Q

Superstructure material

A

5083 marine grade aluminum

64 Study (7 decks)

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