Oilers Plant Tenders (HHC) Civil Service Exam 365 Questions with Verified Answers
The texture of an aluminum-soap lubricating grease is _________ -
... [Show More] CORRECT ANSWER Stringy
The property of a lubricant the allows it to adhere to metallic surfaces is known as ________ - CORRECT ANSWER Oiliness
The physical appearance of a grease with a consistency number of four is MOST NEARLY _________ - CORRECT ANSWER Hard
The one of the following measures that is commonly used to represent a rate of oil feed is drops per ________ - CORRECT ANSWER Minute
The MOST important single property of a lubricating oil is its __________ - CORRECT ANSWER Viscosity
The rate of change in viscosity of a petroleum oil with its temperature is indicated by its __________ - CORRECT ANSWER Viscosity Index
The neutralization number of an oil is an indication of its __________ - CORRECT ANSWER Organic or Mineral Acidity
Graphite is a form of __________ - CORRECT ANSWER Anthracite Coal
The BASIC ingredient in the manufacture of lubricating greases is __________ - CORRECT ANSWER Soap
A test of grease that identifies greases and indicates uniformity in their manufacture is known as the __________ test. - CORRECT ANSWER Dropping-Point
The bearing materials usually called "white metals" or Babbit metal consist MAINLY of __________ - CORRECT ANSWER Tin and Copper
It is GOOD 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
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
The one of the following metals that is non-ferrous is __________ - CORRECT ANSWER Copper
The common terms "heavy" and "light", applied to an oil, refer ONLY to the oil's __________ - CORRECT ANSWER Viscosity
The ring in ring-oiled bearings has a diameter that is USUALLY __________ the journal the diameter. - CORRECT ANSWER Twice
A boiler feedwater regulator automatically controls the __________ the boiler. - CORRECT ANSWER Water Supply to
The dirty oil to be purified in an operating DeLaval Purifier enters the purifier bowl from the __________ - CORRECT ANSWER Top of the machine
The APPROXIMATE ropm of a Sharpies oil purifier is __________ - CORRECT ANSWER 16,000
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
The one of the following that is NOT a method for removing contaminants from oil is __________ - CORRECT ANSWER Centripeting
An engine indicator is an instrument that is used on a reciprocating engine to determine the __________ the engine. - CORRECT ANSWER Performance of
The MAXIMUM bearing oil discharge temperature at which a turbine beating may satisfactorily operate is __________ - CORRECT ANSWER 200 degrees F
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
In modern practice, the method by which turbine-generator reduction gear surfaces NORMALLY recieve lubrication oil is __________ - CORRECT ANSWER Pressure Circulation Lubrication
Lubrication for modern reciprocation air compressors is GENERALLY supplied by __________ - CORRECT ANSWER A Mechanical Force-Feed Oiler
Aftercoolers are put on MOST air compressor installations to __________ - CORRECT ANSWER Condense Moisture from Compressed Air
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
The one of the following actions that MUST be taken during normal operation to clean a knife edge (cuneo) strainer is __________ - CORRECT ANSWER Rotating the Cleaner Blades
Detergents are used in lubricating oils to __________ - CORRECT ANSWER Keep Insoluble Matter in Suspension
The purpose of adding an inhibitor to lubricating oil is to __________ the engine. - CORRECT ANSWER Prevent Sludge and Varnish Formation on Parts of
The relationship between lubricating oil viscosities and temperature is that the viscosities - CORRECT ANSWER Decrease with a Temperature Increase
The ons of the following fluids that should be used when cleaning filter bags pressure-type lube oil filters is __________ - CORRECT ANSWER Kerosene
The precaution, or precautions, that an oiler must take when he is using absorbent type lubricating oil filters is to __________ - CORRECT ANSWER Make Sure that the Particular Oil Additives are not Removed by the Filter
The specific gravity of lubricating oil is USUALLY measured by means of a __________ - CORRECT ANSWER Hydrometer
Of the following, the MOST important requirement of a refrigerator lubricant is that it have __________ - CORRECT ANSWER Freedom from Water
The one of the following faults that would MOST generally cause a sudden increase in oil pressure in a lubricating line to a bearing is __________ - CORRECT ANSWER A Clogged Strainer
The wick used in a gravity oil-feed system is USUALLY made of __________ - CORRECT ANSWER Wool
A thrust bearing is LEAST likely to be fond on a(n) __________ - CORRECT ANSWER Reciprocating Pump
A valve that allows oil to flow in one direction only is GENERALLY called a __________ valve. - CORRECT ANSWER Check
The one of the following types of oils MOST preferred for the hydraulic govenor of a reciprocating steam engine is __________ oil. - CORRECT ANSWER Non-Additive Turbine Type
The one of the following pumps that does NOT have moving parts to be lubricated is a __________ pump. - CORRECT ANSWER Jet
The LARGEST class of lubricants in common use is __________ - CORRECT ANSWER Mineral Oil
The sealing fluid in lubricating oil centrifuges is __________ - CORRECT ANSWER Water
In a well-operated lubricating oil and grease storage facility, lubricating oil is NOT normally removed from large drums by __________ - CORRECT ANSWER Siphoning out of the Top of the Drum
The one of the following that os NOT the identification of a type of gear is a __________ gear. - CORRECT ANSWER Needle
The one of the following that is NOT an anti-friction bearing is the __________ bearing. - CORRECT ANSWER Helical
There are five belts in the drive of a certain fan unit. One of the belts is very loose. The PROPER action to take to correct this condition is to __________ - CORRECT ANSWER Replace all belts with new belts
The one of the following activities that need NOT be performed before starting a forced draft fan unit has been shut down for some time is to __________ - CORRECT ANSWER Open up the suction air valve
The oil at the bearing surface of a steam turbine is USUALLY hotter than the bearing oil discharge temperature by __________ degreees F. - CORRECT ANSWER 50 to 80
General experience indicates that the lubricating oil temperature for the bearings of steam turbines should NOT be permitted to go above __________ degrees F. - CORRECT ANSWER 110 to 120
The FIRST step in determining the reason why the bearings of a ventilating fan are "running hot" is to __________ - CORRECT ANSWER Shut down the unit
AGMA Grade 1 lubricant is MOST NEARLY equivalent to SAE number __________ - CORRECT ANSWER 75
The letters AGMA, used when referring to a gear lubricant, are an abbreviation for the __________ - CORRECT ANSWER American Gear Manufacturers Association
When the ignition charachteristics of a fuel are represented by a cetane number, the fuel is NORMALLY used in a __________ - CORRECT ANSWER Diesel engine
The resistance to flow of aliquid is measured by a(n) __________ - CORRECT ANSWER Viscosimeter
The MOST economical and effective method to get lubricating oil into a horizontal superheated steam reciprocating engine is to __________ - CORRECT ANSWER Atomize the oil into the steam at the steam inlet
The parts of the valve in the poppet valve engine that require lubrication are the __________ guide. - CORRECT ANSWER Cam and tappet mechanism and the valve steam
The purpose of the seals that close the small openings between shafts in machinery, and the housings through which they extend, is to __________ - CORRECT ANSWER Exclude dirt and prevent the escape of lubricant
Lubricants in a diesel engine perform all of the following functions EXCEPT __________ - CORRECT ANSWER Acting as a vibration absorber
The one of the following signs that would indicate that the oil supply passage to a hydraulic lifter on a diesel engine is plugged up is __________ - CORRECT ANSWER Noise from the affected valve
A pyrometer on a diesel engine is used for measuring __________ - CORRECT ANSWER Temperature
Water GENERALLY enters a diesel lubricating oil system because of __________ - CORRECT ANSWER Condensation of combustion products
Two gears are meshed together and have a gear ratio of 6 to 1. If the small gear rotates 120 revolutions per minute, the large gear rotates at __________ rpm. - CORRECT ANSWER 20
The vacuum side of a compound gage reads 14 inches of vacuum. The barometer reading is 29.76 inches of mercury. The equivalent absolute pressure of the compund gage reading, in inches of mercury, is MOST likely __________ - CORRECT ANSWER 15.76
The fraction 5/8, expressed as a decimal , is __________ - CORRECT ANSWER 0.625
If 300 feet of a certain size pope weighs 450 pounds, the number of pounds that 100 feet will weigh is _________ - CORRECT ANSWER 150
As an oiler, you work for a facility that has automobiles that use, on the average, 600 quarts of one grade of lubricating oil every month. The number of one-gallon cans of the above oil that SHOULD be ordered each month to meet this requirement is __________ - CORRECT ANSWER 150
The purpose of a fuse in an electric circuit operating at a set voltage is to protect against __________ - CORRECT ANSWER Too much current
A fuse in an electric circuit has the SAME function as a __________ - CORRECT ANSWER Circuit breaker
Electric current is measured in __________ - CORRECT ANSWER Amperes
Of the following, the one that is a good surface color for the commutators and slip ringsof electricla generators is _________ - CORRECT ANSWER Chocalate brown
The type of fire extinguisher that SHOULD be used in fighting an electrical fire is __________ - CORRECT ANSWER Carbon Dioxide
The MOST important precaution to take in giving first aid to a severely injured man when there is a possibility of broken bones is to __________ - CORRECT ANSWER Move him no more than is absolutely necessary and call a doctor
An oiler who is working on a repair job which has to be EXPEDITED is working on a job that must be done _________ - CORRECT ANSWER As quickly as possible
An oiler who is ADEPT at his job is one who is __________ - CORRECT ANSWER Skilled
Mineral oils are USUALLY refined from _________ products. - CORRECT ANSWER Crude Petroleum
In general, light-bodied oils are MOST suitable for _________ - CORRECT ANSWER Light loads at high speeds
Of the following, a good lubricant should ALWAYS possess _________ - CORRECT ANSWER Minimum impurities
Of the following oils, the one which is generally considered useless as a lubricant is _________ oil. - CORRECT ANSWER Linseed
The property of a lubricant that a Saybolt viscosimeter measures is called the - CORRECT ANSWER Degree of fluidity
The texture of calcium-base is USUALLY __________ - CORRECT ANSWER Smooth
The equipment commonly used to sperate heavy liquids from the lighter liquids is called a _________ - CORRECT ANSWER Centrifuge
Clean storage of lubricants and proper handling methods _________ - CORRECT ANSWER Prevent injury and breakdown to machinery
As an oiler, you notice a leak around the piston rod of a double acting water pump. In order to reduce this leak, you should FIRST tighten each hexagon nut on the packing gland one __________ - CORRECT ANSWER Sixth of a turn
A lubricant that possesses high adhesion is LESS likely _________ - CORRECT ANSWER To run out of a bearing
Of the following the lubricants, the one which is USUALLY NOT attacked by acids is __________ - CORRECT ANSWER Graphite [Show Less]