Questions and Correct Answers
1. The texture
of an aluminum-soap lubricating grease is correct
answer: Stringy
2. The property of a lubricant the allows it to
adhere to metallic surfaces is known as correct answer: Oiliness
3. The physical appearance of a grease with a
consistency number of four is MOST NEARLY correct answer: Hard
4. The one of the following measures that is
commonly used to represent a rate of oil feed is drops per correct
answer: Minute
5. The
MOST important single property of a lubricating oil is its
correct answer: Viscosity
6. The rate of change in viscosity of a
petroleum oil with its temperature is indicated by its correct
answer: Viscosity Index
7. The
neutralization number of an oil is an indication of its correct
answer: Organic or Mineral Acidity
8. Graphite is a form of correct answer:
Anthracite Coal
9. T
he BASIC ingredient in the manufacture of lubricating greases is -
correct answer: Soap
10. A test of grease that
identifies greases and indicates uniformity in their manufacture
is known as the test. correct answer: Dropping-Point
11. The bearing materials usually called "white
metals" or Babbit metal consist MAINLY of correct answer: Tin and
Copper
12. It is GOOD
,Oilers/Plant Tenders (HHC) Civil Service Exam
Questions and Correct Answers
practice in the installation of three new packing rings in a stuffing
box to require that the joints of the packing be spaced degrees
apart. correct answer: 120
13. The objective
in the use of applicaors for wire-rope lubrication is to apply a smooth
even film at a temperature conducive to the correct answer:
Penetration of the wire strands
14. The one of
the following metals that is non-ferrous is correct
answer: Copper
15. The common terms "heavy" and "light", applied to an
oil, refer ONLY to the oil's correct answer: Viscosity
16. Th
e ring in ring-oiled bearings has a diameter that is USUALLY
the journal the diameter. correct answer: Twice
,Oilers/Plant Tenders (HHC) Civil Service Exam
Questions and Correct Answers
17. A boiler
feedwater regulator automatically controls the the
boiler.-
correct answer: Water Supply to
18. The dirty oil to be purified in an operating
DeLaval Purifier enters the purifier bowl from the correct answer: Top of the
machine
19. The
APPROXIMATE ropm of a Sharpies oil purifier is correct
answer: 16,000
20. In order to have effective separation of
purification in a Delaval Purifier, it is recommended that the oil to
be cleaned be heated to an APPROXIAMTE temperature of
correct answer: 160 degrees F
21. The one of the following that is NOT a method for
removing contaminants from oil is correct answer: Centripeting
22. An engine indicator is an instrument that is
used on a reciprocating engine to determine the the engine. correct
answer: Performance of
23. The MAXIMUM bearing oil discharge
temperature at which a turbine beating may satisfactorily operate is
correct answer: 200 degrees F
24. Generally, at which point should a turbine-driven generator, with
an integral lubricating oil system, put the lube oil cooler in operation?
correct answer: When the temperature of the hottest bearing reaches 100 degrees
F
25. In modern practice,
the method by which turbine-generator reduction gear surfaces
NORMALLY recieve lubrication oil is correct answer: Pressure
Circulation Lubrication
26. Lubrication for modern reciprocation air
,Oilers/Plant Tenders (HHC) Civil Service Exam
Questions and Correct Answers
compressors is GENERALLY sup- plied by correct answer: A Mechanical
Force-Feed Oiler
27. Aft
ercoolers are put on MOST air compressor installations to
correct answer: Con- dense Moisture from Compressed Air
28. A pipe
fitting having a male thread at one end, a female thread at the other
end, and shaped to a ninety-degree bend is called a(n) correct
answer: Street Elbow
29. The one of the
following actions that MUST be taken during normal opera- tion to
clean a knife edge (cuneo) strainer is correct answer: Rotating
the Cleaner Blades
30. Detergents are used in
lubricating oils to correct answer: Keep Insoluble
Matter in Suspension
31. Th
e purpose of adding an inhibitor to lubricating oil is to
the engine. correct answer: Prevent Sludge and Varnish Formation on Parts of