Oil Analysis Fundamentals-UR

Question 1

what are wear metals?

Answer 1

microscopic metal particles formed by friction

Question 2

what must an oil-wetted system have in order to monitor the system for wear by spectrometric oil analysis?

Answer 2

a recirculating oil system and a sump

Question 3

what is a catastrophic failure?

Answer 3

happens without warning

Question 4

in spectroscopy, what is light?

Answer 4

electromagnetic radiation that travels through space in the form of waves

Question 5

in spectroscopy, what is characteristic light of an element?

Answer 5

the specific wavelengths of light emitted by an element when excited

Question 6

in which component group of the atomic emission spectrometer are specific wavelengths of light isolated for monitoring?

Answer 6

optical processing

Question 7

what should you do when installing new electrodes into the spectrometer?

Answer 7

install the disc electrode first

Question 8

after the rod electrode is in contact with disc electrode, you can avoid inconsistencies when setting the analytical gap between the electrodes by …….

Answer 8

slowly raising the gap setting lever until it stops, then gently releasing it back to its resting position

Question 9

what would you do next if you find the results do not fall within acceptable limits during the oil analysis spectrometer’s daily standardization check?

Answer 9

perform a full instrument standardization

Question 10

which procedure should be performed monthly prior to analyzing correlation samples and recommended it be performed after the spectrometer has been subjected to a temperature change of 15 degrees Fahrenheit or more?

Answer 10

optical profile

Question 11

after how many burn cycles should you wipe clean the oil analysis spectrometer disk electrode shaft, sample table and the sample plate area between the disc electrode shaft and the rod electrode clamp?

Answer 11

one

Question 12

which of the following is not one of the four diagnostics checks that may be performed by the operator?
(A) repeatability
(B) Accountability
(C) Dark current test
(D) Calibration Curve verification

Answer 12

accountability

Question 13

prior to performing the calibration curve verification diagnostic check, the oil analysis spectrometer must ……….

Answer 13

have had full standardization performed

Question 14

which of the following factors affecting repeatability, does the operator have control over?
(A) Position of the optic fiber within the lens assembly
(B) Sample stand geometry
(C) the spectrometer being on profile
(D) the quartz lens assembly to arc distance

Answer 14

C. the spectrometer being on profile

Question 15

to properly operate a spectroil M spectrometer from a light cart, you should use the line voltage ……………

Answer 15

being shared with the least number of other equipment because the spectrometer uses a lot of power

Question 16

what is repeated stress and metal fatigue of an engine bearing race resulting in flakes of metal breaking off normally referred to as?

Answer 16

spalling

Question 17

in the past, during normal day to day operations, the primary method of detecting large particles was by visually inspecting the engine…

Answer 17

master chip detector

Question 18

which risk factor level warning indicates that there is a significant amount of material detected and troubleshooting must be initiated?

Answer 18

level 2

Question 19

in gallons and using an approved container, what is the maximum amount of waste oil you may store in the laboratory?

Answer 19

five

Question 20

which volume of technical order (TO) 33-1-37, JOAP Manual, contains wear metal criteria, tend tables, and decision-making guidance?

Answer 20

three

Question 21

which type of oil sample has the lowest priority for analysis?

Answer 21

Routine non-aeronautical

Question 22

isolation of individual component discrepancies by oil analysis is limited to cases where …………..

Answer 22

distinctive combinations of wear metal elements exist

Question 23

the supplemental information sheets accompanying each engine trend table are used to ……………..

Answer 23

aid in isolating the source of wear metal content in an oil sample

Question 24

which is not a sure example of an abnormal wear metal trends?
(A) wildly fluctuating concentrations
(B) an unexplained decrease in concentration
(C) an increase exceeding the allowable limit for the period
(D) concentration reading jumping from a marginal to high level on the spectrometer

Answer 24

concentration reading jumping from marginal to high level on the spectrometer

Question 25

what is the minimum number of analysis results that must be recorded in the Department of Defense (DD) Form 2026, Transit Aircraft Oil Analysis Record by the home station laboratory?

Answer 25

three

Question 26

which office does not require a copy of he spectrometer deployment kit analysis results?

Answer 26

the home station laboratory

Question 27

what is the purpose of the Joint Oil Analysis Program’s Correlation Program?

Answer 27

ensure uniform and continuous high-quality oil analysis results from program participants