Power Engineering - 4B1 Practice
Exam Questions & Answers (Grade
A+)
If an oil's viscosity changes a lot with little temperature change then
it will have?
a. low viscosity index
b. high pour point
c. high carbon residue
d. high viscosity index -
correct answer ✅a. low viscosity index
Besides physically removing heat from a component, how does oil
reduce the heat in a bearing?:
a. it reduces the specific heat of the air in the bearing housing
b. it reduces wear
c. it increases the heat transfer
d. it reduces friction -
correct answer ✅d. it reduces friction
Of the following, which is NOT a function of the oil in a steam
turbine oil system?
,Power Engineering - 4B1 Practice
Exam Questions & Answers (Grade
A+)
a. governor control system fluid
b. heat removal
c. pour point suppression
d. friction reduction -
correct answer ✅c. pour point suppression
The intermeshing of gear teeth is a place where
a. temperature control is very important
b. friction reduction is very important
c. sealing is very important
d. shock absorption is very important -
correct answer ✅d. shock absorption is very important
If a lubricant oil has a high viscosity index number, this means it
will:
a. change a great deal with temperature change
,Power Engineering - 4B1 Practice
Exam Questions & Answers (Grade
A+)
b. not change at all with temperature increase
c. vaporize with temperature increase
d. change little with temperature change -
correct answer ✅d. change little with temperature change
If a piece of machinery were particularity difficult to reach and
service, what type of lubricant would be useful?:
a. an oil
b. a grease
c. a solid lubricant
d. a grease stick -
correct answer ✅c. a solid lubricant
What type of oil do open gears require?:
a. high viscosity oil
b. semi-solid oil
c. oil with a low pour point
, Power Engineering - 4B1 Practice
Exam Questions & Answers (Grade
A+)
d. low viscosity oil -
correct answer ✅a. high viscosity oil
The separation of two surfaces, which is brought about by an
interposing liquid, is called
a. lubrication
b. viscosity index
c. floc point
d. oil flooding -
correct answer ✅a. lubrication
Which class of liquid lubricant is not often used on its own?:
a. mineral oils
b. synthetic oils
c. fixed oils
d. mixed base oils -
correct answer ✅c. fixed oils
Exam Questions & Answers (Grade
A+)
If an oil's viscosity changes a lot with little temperature change then
it will have?
a. low viscosity index
b. high pour point
c. high carbon residue
d. high viscosity index -
correct answer ✅a. low viscosity index
Besides physically removing heat from a component, how does oil
reduce the heat in a bearing?:
a. it reduces the specific heat of the air in the bearing housing
b. it reduces wear
c. it increases the heat transfer
d. it reduces friction -
correct answer ✅d. it reduces friction
Of the following, which is NOT a function of the oil in a steam
turbine oil system?
,Power Engineering - 4B1 Practice
Exam Questions & Answers (Grade
A+)
a. governor control system fluid
b. heat removal
c. pour point suppression
d. friction reduction -
correct answer ✅c. pour point suppression
The intermeshing of gear teeth is a place where
a. temperature control is very important
b. friction reduction is very important
c. sealing is very important
d. shock absorption is very important -
correct answer ✅d. shock absorption is very important
If a lubricant oil has a high viscosity index number, this means it
will:
a. change a great deal with temperature change
,Power Engineering - 4B1 Practice
Exam Questions & Answers (Grade
A+)
b. not change at all with temperature increase
c. vaporize with temperature increase
d. change little with temperature change -
correct answer ✅d. change little with temperature change
If a piece of machinery were particularity difficult to reach and
service, what type of lubricant would be useful?:
a. an oil
b. a grease
c. a solid lubricant
d. a grease stick -
correct answer ✅c. a solid lubricant
What type of oil do open gears require?:
a. high viscosity oil
b. semi-solid oil
c. oil with a low pour point
, Power Engineering - 4B1 Practice
Exam Questions & Answers (Grade
A+)
d. low viscosity oil -
correct answer ✅a. high viscosity oil
The separation of two surfaces, which is brought about by an
interposing liquid, is called
a. lubrication
b. viscosity index
c. floc point
d. oil flooding -
correct answer ✅a. lubrication
Which class of liquid lubricant is not often used on its own?:
a. mineral oils
b. synthetic oils
c. fixed oils
d. mixed base oils -
correct answer ✅c. fixed oils
