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MK3 > Fluids > Flashcards

Fluids Flashcards

1
Q

Substance capable of reducing friction, heat, and wear when introduced as a film between moving parts

A

Lubricant

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2
Q

Three basic types of lubricant

A

Dry (graphite)
Wet
Mineral-based

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3
Q

Five characteristics of lubricants

A 
Viscosity
Viscosity index
Pour point
Flash point
Fire point
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4
Q

Measure of the oil’s internal friction or resistance to flow

A

Viscosity

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5
Q

Indicates the influence of temperature on a particular type of oil

A

Viscosity index

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6
Q

Lowest temperature at which the lubricant will flow from a container

A

Pour point

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7
Q

Most lube oils have a natural pour point of ranging from

A

10 - 25 degrees F

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8
Q

Minimum temperature at which the lubricant will give off a sufficient quantity of vapor to ignite when exposed to an open flame

A

Flash point

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9
Q

Minimum temperature at which the lubricant will give off a sufficient quantity of vapor to ignite and continue to burn when exposed to an open flame

A

Fire point

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10
Q

The fire point of a lubricant ranges from approximately _____ higher than the flash point

A

10 - 70 degrees F

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11
Q

Encourage foam to dissipate rapidly in oil

A

Anti-foam additives

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12
Q

The products of oxidisation include

A

Organic acids

Oxy-hydrocarbons

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13
Q

Clean the engine and minimise the amount of harmful sludge deposits

A

Detergent additives

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14
Q

Allow the lube oil to meet two or more viscosity levels

A

Viscosity index improvers

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15
Q

Four causes of lube oil contamination

A

Fuel dilution
Acid contamination
Water
Insolubles

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16
Q

Naval engineering manual, COMDTINST M9000.6 (series), identifies that viscosity limits of ___ increase and ___ fuel dilution are allowable

A

40%

5%

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17
Q

Identifies the viscosity limits of lube oil

A

Naval Engineering Manual, COMDTINST M9000.6 (series)

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18
Q

Occurs during combustion when sulfur is in the fuel

A

Acid contamination

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19
Q

Water contamination in a used oil sample indicate ___

A

Adverse operating conditions or a coolant leak

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20
Q

Three products of oxidation

A

Sludge
Varnish
Acids

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21
Q

Oxidation results from a combination of ___

A

High temperatures
Constant mixing with blowby gasses
Air in contact with metal surfaces

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22
Q

Two methods of shipboard oil testing

A

Visage viscosity comparator

Gerin falling ball comparator DCA 300 test kit

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23
Q

Engine lube oil may increase in acidity due to combustion byproducts containing ____

A

Nitrogen and sulfur

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24
Q

What colour on the acid test indicates a satisfactory acidity level in the oil?

A

Blue

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25
Q

What colour on the acid test indicates too high of an acidity level

A

Yellow or green

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26
Q

Method by which metals in a fluid are measured in ppm

A

Spectrometric analysis

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27
Q

Units that submit oil samples for laboratory analysis will take samples how often?

A

Every 250 hours or quarterly

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28
Q

Which units must submit oil samples for laboratory analysis?

A

Cutters 65 and longer

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29
Q

Newly overhauled engines shall have oil samples drawn and submitted after ___

A

1, 25, and 50 hours

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30
Q

Upon striking aboard new oil, submit a new oil sample from the storage tank to the testing facility ___

A

As soon as possible

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31
Q

After an oil and filter change, allow a minimum of ___ before sampling

A

25 operating hours

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32
Q

Never take an oil sample immediately after ___

A

An oil change or oil addition to the sump

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33
Q

When is it required that the SSDG’s have the oil tested?

A

If oil change intervals exceed 750 hours

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34
Q

Oil Analysis Request

A

DD Form 2026

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35
Q

Oil sample bottles which are being sent out are labeled with what five pieces of information?

A 
Equipment type
Oil type
Date sample taken
Time sample taken
Hours of operation since last oil change
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36
Q

If an oil sample for any unit of equipment is not received by the testing facility within a ____ period, the lab will delete all historical data on that piece of equipment

A

240 day

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37
Q

FOWK

A

Fuel, oil, and water king

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38
Q

Person in charge of all aspects of fuel handling aboard a ship

A

FOWK

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39
Q

Engineer responsible for transfers and the accountability of liquids stored, received, and discharged aboard the vessel

A

FOWK

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40
Q

Has the overall responsibility over the FOWK

A

EO

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41
Q

Obtain a ___ before carrying out any hot work on fuel and lube oil systems and tanks

A

Hot work permit

42
Q

What kind of flash lights should be used when working around and on fuel equipment and enclosed compartments?

A

Explosion-proof

43
Q

Do not carry what kind of matches and lighters when working around fuel

A

Strike anywhere

Automatic

44
Q

The presence of fuels in the bilge can be detected by ___

A

Spreading a thin coat of water indicating paste on one side of a metal rod, and fuel indicating paste on the other, and inserting the rod into the bilge liquid

45
Q

Fuel tanks are considered ___

A

Immediately Dangerous to Life or Health

46
Q

IDLH

A

Immediately Dangerous to Life or Health

47
Q

Permission to enter a tank known or suspected to contain fuel or fuel vapours must come from the ___

A

CO

48
Q

Safety precautions and instructions for entering a fuel tank are prescribed in ____

A

NSTM Chapter 074, Volume 3

49
Q

If fuel could potentially spray or drip on any surface reaching ____, shield that surface eve if it is insulated

A

400 degrees F

50
Q

What are required of sounding tubes that terminate in hazardous areas?

A

Float ball check valves

51
Q

F-76 was formerly known as ___

A

Diesel Fuel Marine (DFM)

52
Q

Can be used as a substitute for F-76

A

Diesel Fuel #2 (DF2)

53
Q

Colour of F-76

A

Clear to light amber

54
Q

Flash point of F-76

A

140 degrees F

55
Q

F-44 is also known as ___

A

JP-5

56
Q

F-44 or JP-5 is best described as ____

A

Kerosene type jet fuel

57
Q

Colour of JP-5

A

Clear to amber

58
Q

Gasoline is classified as a ______ material

A

Category I Flammable

59
Q

___ provides guidance on the stowage, handling, and disposal of gasoline and other hazardous general use consumables

A

NSTM Chapter 670

60
Q

Gasoline containers shall be stowed ____

A

On the weather deck aft, so they can be readily jettisoned overboard

61
Q

Gasoline storage areas shall be designated as ___

A

Gasoline hazard areas

62
Q

Gasoline containers shall be labeled as ____

A

Flammable

63
Q

Shipboard fuel quality problem is typically discovered via ____ and ___

A

High fuel filter differential pressures

Higher than normal rate for fuel filter change-outs

64
Q

Four primary causes for fuel filter clogging problems

A

Contaminates
Chemical instability
Microbiological contamination
Incompatibility between fuel loads

65
Q

Dark-coloured fuel may be an indication of ____

A

Contaminated fuel

66
Q

If fuel becomes chemically unstable, it forms ___

A

Oxygenated particulates that will rapidly clog filters

67
Q

The only corrective action for chemically unstable fuel is to ____

A

Offload the fuel and clean the tank

68
Q

A black or brown, gel-like residue in fuel filter housings indicates ___

A

Chemically unstable fuel

69
Q

In the clear and bright test, clear refers to ___

A

Absence of visible particulate matter

70
Q

In the clear and bright test, bright refers to ___

A

Absence of suspended water droplets that appear as haziness or cloudiness

71
Q

When conducting a clear and bright test, the fuel temperature must be at least ____

A

60 degrees F

72
Q

If the fuel contamination appears to be water contamination ___

A

Increase sample temperature in a water bath by 25 degrees F

73
Q

Engine jacket water systems shall never be directly connected with ____

A

Potable water supply

74
Q

Wear what four ppe when testing or handling jacket water chemicals

A

Rubber gloves
Eye protection
Face shield
Rubber apron

75
Q

When plain water is used as a coolant, liners can be penetrated in a matter of ____ of operation

A

500 hours

76
Q

Cavitation causes ____

A

Liner pitting

77
Q

If the liner is penetrated by cavitation, coolant and oil will ____

A

Coolant will flow into oil when the engine is shut down, and oil will flow into coolant when the engine is running

78
Q

Most frequently liner pitting is found on the side of the liner where ____

A

The piston strikes just after the cylinder fires

79
Q

Used to prevent liner pitting

A

Supplemental Coolant Treatments or Additives (SCT’s or SCA’s)

80
Q

Form a protective microscopic film on the coolant side of the liner by transforming ferric oxide, which is very soft, into a compound FE3O5, which is very hard

A

Supplemental Coolant Treatments or Additives (SCT’s or SCA’s)

81
Q

Antifreeze shall be used on ___

A

All boats less than or equal to 65 ft

All engines that utilize keel coolers

82
Q

Sea water contamination is detected by testing the engine coolant for ___

A

Chloride

83
Q

High quality water contains minimal amounts of ___

A

Hardness, chloride, and sulfate

84
Q

Water shall be tested for conductivity or chloride. The maximum acceptable limit is ____ or ____

A

150 micromho per centimetre

40 ppm chloride

85
Q

The coolant conductivity test is performed with a ___

A

Conductivity meter

86
Q

Where make up water exceeds the limits, it will be recorded in ___

A

Engine coolant treatment log

87
Q

Before initiating coolant treatment, the cooling system of an engine shall be ___

A

Inspected

88
Q

The engine shall be operated within ___ of jacket water treatment

A

24 hours

89
Q

A sample of J/W shall be obtained ___ after reaching operating temperature

A

10 - 60 minutes

90
Q

Jacket water shall be tested at least ___

A

Monthly

91
Q

Jacket water samples shall be tested within ___ of being drawn

A

1 hour

92
Q

In the event that an engine is secured when a routine sample of the J/W is scheduled to be taken

A

It should be noted in the Engine Coolant Treatment Log

93
Q

Allow the coolant sample to cool to ___ before testing

A

100 degrees F or less

94
Q

J/W test strips are used to ___

A

Conduct semi-quantitative checks or spot tests

95
Q

Colour wheel kits use ___

A

A defined colour to interpret the proper chemical composition

96
Q

Provide a low cost colour interpretation method for titrimetric determinations

A

Drop count test kits

97
Q

Provides the highest level of accuracy and repeatability for J/W testing

A

Colorimeter-based kits

98
Q

Fast and easy-to-use method for testing the freezing point of glycol-based antifreeze

A

Refractometer

99
Q

Uses light to measure the amount of propylene or ethylene gylcol and assigns a temperature reading based on an integrated scale

A

Refractometer

100
Q

If the refractometer shows a blurry hazy image it indicates ___

A

Oil has been beaten or emulsified into the coolant

101
Q

Chemical instabilities of fuel oil are called ___

A

Oxidisers

102
Q

What type of jacket water test kit uses one chemical, acid or base to drop into the coolant solution to evaluate its overall composition based on color?

A

Drop count titration kit

MK3 (10 decks)

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