Oilers/Plant Tenders (HHC) Civil Service
Actual Exam Questions With Reviewed
100% Correct Detailed Answers
Guaranteed Pass!!
1. A lubricant for a bearing, if properly selected and used, will do at LEAST the
following: - ANSWER Lubricate, clean, and cool the bearing
2. The oil the is USUALLY used for lubricating the cylinder and piston of an
operating steam engine is a __________ oil. - ANSWER Compounded
3. IF a sudden increase of pressure at the oil pump is noted in a lubricating
system, it USUALLY indicates that_________ - ANSWER A clogging at
some point in the system or at the strainer
4. In a force feed lubricating system for marine engines, the temperature, in
degrees Fahrenheit, of the oil leaving the cooler SHOULD BE, most nearly,
________ - ANSWER Between 90 and 115
5. Lubricating oil coolers are USUALLY installed in pairs and operated so that
pressure ________ - ANSWER In the oil side is greater than that in the
water side
,6. Lubricating grease __________ - ANSWER Is made up of 1/2% to 20%
of soap in mineral oil
7. In 2-cycle and 4-cycle engines, the quantity of lubricating oil used is
_________ - ANSWER Greater in the 2-cycle engine than the 4-cycle
engine
8. A well-designed, properly operated, diesel engine should consume a gallon
of lubricating oil for approximately EVERY __________ horsepower hours of
operation. - ANSWER 1000
9. In a centrifuge, _________ - ANSWER Heavy liquids are separated from
lighter liquids
10.Strainers set in a lubricating oil system __________ - ANSWER Will
remove only solid particles
11.A 24-strand wick will feed to a large bearing operating at high speed MOST
NEARLY the following quantity of oil, in drops per minute: - ANSWER 30
12.If wicks are not removed from their oil tubes when the machinery is
secured, __________ - ANSWER They will continue to deliver oil to the
bearings for some time
,13.In regard to self-oiling bearings, __________ - ANSWER The level of
lubricant in its well should be checked periodically
14.A cylindrical oil cup has an inside diameter of 4 inches and a hegiht of 7
inches. Its contents in cubic inches is, most nearly _________ - ANSWER
88
15.The AMOUNT of oil distributed by a ring oil bearing _________ - ANSWER
Gets less as the temperature of oil increases
16.On reciprocating engines, __________ - ANSWER Emulsified lubrication
is desired and planned for
17.Demulsibility of an oil used for forced-feed lubrication is __________ -
ANSWER A measure of the ability of an oil to separate out from an
emulsion
18.Cooling or circulating water temperature for diesel engine cylinders
SHOULD BE, in degrees F, most nearly, __________ - ANSWER 115
19.The temperature of circulating water in a diesel engine cylinder jacket is
kept within the prescribed limits beacuase _________ - ANSWER High
temperatures cause pounding
, 20.Trapped air pockets in an engine cooling water circulating system
__________ - ANSWER Will feel hotter than the surrounding suspected
parts
21.In the splash system of lubrication, __________ - ANSWER The quantity
of oil splashed against the cylinder wall cannot be regulated
22.Splash lubrication is caused by _________ - ANSWER The action of the
crank in the crankcase oil
23.Ina common two-part journal bearing, __________ - ANSWER One
groove lengthwiase at the top of the bearing is preferred to three
circmferential grooves around the bearing
24.When grooving bearings, the type of groove MOST PREFERABLE is
__________ - ANSWER Shallow U
25.Collar thrust bearings __________ - ANSWER Have oil introduced at the
periphery of the shaft between collars
26.Anti-friction bearings: - ANSWER Need very little attention
27.After installing a tapered roller bearing, __________ - ANSWER The
level of oil in the bearing housing should just cover the lower rollers
Actual Exam Questions With Reviewed
100% Correct Detailed Answers
Guaranteed Pass!!
1. A lubricant for a bearing, if properly selected and used, will do at LEAST the
following: - ANSWER Lubricate, clean, and cool the bearing
2. The oil the is USUALLY used for lubricating the cylinder and piston of an
operating steam engine is a __________ oil. - ANSWER Compounded
3. IF a sudden increase of pressure at the oil pump is noted in a lubricating
system, it USUALLY indicates that_________ - ANSWER A clogging at
some point in the system or at the strainer
4. In a force feed lubricating system for marine engines, the temperature, in
degrees Fahrenheit, of the oil leaving the cooler SHOULD BE, most nearly,
________ - ANSWER Between 90 and 115
5. Lubricating oil coolers are USUALLY installed in pairs and operated so that
pressure ________ - ANSWER In the oil side is greater than that in the
water side
,6. Lubricating grease __________ - ANSWER Is made up of 1/2% to 20%
of soap in mineral oil
7. In 2-cycle and 4-cycle engines, the quantity of lubricating oil used is
_________ - ANSWER Greater in the 2-cycle engine than the 4-cycle
engine
8. A well-designed, properly operated, diesel engine should consume a gallon
of lubricating oil for approximately EVERY __________ horsepower hours of
operation. - ANSWER 1000
9. In a centrifuge, _________ - ANSWER Heavy liquids are separated from
lighter liquids
10.Strainers set in a lubricating oil system __________ - ANSWER Will
remove only solid particles
11.A 24-strand wick will feed to a large bearing operating at high speed MOST
NEARLY the following quantity of oil, in drops per minute: - ANSWER 30
12.If wicks are not removed from their oil tubes when the machinery is
secured, __________ - ANSWER They will continue to deliver oil to the
bearings for some time
,13.In regard to self-oiling bearings, __________ - ANSWER The level of
lubricant in its well should be checked periodically
14.A cylindrical oil cup has an inside diameter of 4 inches and a hegiht of 7
inches. Its contents in cubic inches is, most nearly _________ - ANSWER
88
15.The AMOUNT of oil distributed by a ring oil bearing _________ - ANSWER
Gets less as the temperature of oil increases
16.On reciprocating engines, __________ - ANSWER Emulsified lubrication
is desired and planned for
17.Demulsibility of an oil used for forced-feed lubrication is __________ -
ANSWER A measure of the ability of an oil to separate out from an
emulsion
18.Cooling or circulating water temperature for diesel engine cylinders
SHOULD BE, in degrees F, most nearly, __________ - ANSWER 115
19.The temperature of circulating water in a diesel engine cylinder jacket is
kept within the prescribed limits beacuase _________ - ANSWER High
temperatures cause pounding
, 20.Trapped air pockets in an engine cooling water circulating system
__________ - ANSWER Will feel hotter than the surrounding suspected
parts
21.In the splash system of lubrication, __________ - ANSWER The quantity
of oil splashed against the cylinder wall cannot be regulated
22.Splash lubrication is caused by _________ - ANSWER The action of the
crank in the crankcase oil
23.Ina common two-part journal bearing, __________ - ANSWER One
groove lengthwiase at the top of the bearing is preferred to three
circmferential grooves around the bearing
24.When grooving bearings, the type of groove MOST PREFERABLE is
__________ - ANSWER Shallow U
25.Collar thrust bearings __________ - ANSWER Have oil introduced at the
periphery of the shaft between collars
26.Anti-friction bearings: - ANSWER Need very little attention
27.After installing a tapered roller bearing, __________ - ANSWER The
level of oil in the bearing housing should just cover the lower rollers
