Fuel Oil and Lube Oil

Question 1

What is the primary fuel used in all shipboard power plants?

Answer 1

Fuel, Naval Distillate (F-76)

Question 2

Who must be notified for technical advice as soon as possible when using emergency substitute fuel?

Answer 2

TYCOM or NAVSEASYSCOM

Question 3

What is the total quantity of fuel needed to conduct the Bottom Sediment and Water (BS&W) test?

Answer 3

100 milliliters per centrifuge tube for a total of 200 milliliters

Question 4

What is the minimum temperature at which the fuel oil BS&W test is to be performed?

Answer 4

60 degrees F

Question 5

What is the required centrifuge revolutions per minute (RPM), when conducting the fuel oil BS&W test?

Answer 5

About 1500 RPM

Question 6

How is the BS&W reading recorded from the centrifuge tube?

Answer 6

The readings shall be a direct percentage of water and sediment read from the tube

Question 7

What is the proper procedure, if the readings from the two tubes differ?

Answer 7

The readings shall be added together and divided by two to determine the BS&W

Question 8

What type of fuel oil test uses the Pensky Martin closed cup tester?

Answer 8

Flashpoint

Question 9

What is the purpose of filtering the fuel through filter paper, when conducting the flashpoint test?

Answer 9

To remove all water

Question 10

What is the required length of the test flame on the flashpoint tester, when conducting testing?

Answer 10

4 mm or 5/32 in

Question 11

The temperature is raised at what rate, when performing the flashpoint test?

Answer 11

9 degrees F. to 11 degrees F. per minute

Question 12

At what temperature is the test flame applied to the sample, when conducting the flashpoint test?

Answer 12

When the temperature of the sample is not higher than 30 degrees F. below the expected flashpoint temperature

Question 13

After the test flame is applied, what is the rate at which the temperature is increased?

Answer 13

In 2 degree F. increments until flashpoint is achieved

Question 14

What is the minimum flashpoint of F-76?

Answer 14

140 degrees F

Question 15

What is the minimum flashpoint of JP-5 (F-44)?

Answer 15

140 deg F

Question 16

The flashpoint tester stirring mechanism rotates at what speed?

Answer 16

90 to 120 rpm

Question 17

The thermometer used for flashpoint testing has a range of what?

Answer 17

20 to 230 deg F

Question 18

What fuel oil test uses a hydrometer?

Answer 18

API gravity

Question 19

When conducting an API gravity test, how is the hydrometer read?

Answer 19

After the hydrometer is released in the sample, adequate time must be allotted for the hydrometer to reach equilibrium, once equilibrium is reached the reading is recorded

Question 20

What is the standard temperature for determining volume on all petroleum products?

Answer 20

60 deg F

Question 21

The term clear refers to what, when applied to fuel oil samples?

Answer 21

Free of solid particulate

Question 22

The term bright refers to what, when applied to fuel oil samples?

Answer 22

Free of water

Question 23

How long is the sample bottle inverted, when conducting fuel oil clear and bright observations?

Answer 23

Minimum of one minute

Question 24

What is the minimum amount of times that the sample bottle is inverted, during clear and bright observations?

Answer 24

3 times

Question 25

During clear and bright observations, you notice a cloud in the sample bottle that disappears at the top of the bottle, what is this an indication of?

Answer 25

Water is present

Question 26

What is the range of the thermometer used in API gravity testing?

Answer 26

-5 to 215 deg F

Question 27

What is the volume of the graduated cylinder that is used for BS&W testing?

Answer 27

100 milliliters (ml)