4B ABSA Ultimate Study Set exam with complete solutions

4B ABSA Ultimate Study Set exam
with complete solutions




If qlubricating qoil qhas qa qhigh qviscosity qindex qnumber, qthis qmeans qthe qviscosity
qwill:
a. qChange qa qgreat qdeal qwith qtemperature qchange
b. qNot qchange qat qall qwith qtemperature qchange
c. qVaporize qwith qa qtemperature qincrease
d. qChange qlittle qwith qtemperature qchange
e. qIncrease qin qpressure qas qthe qtemperature qdecreases. q- qcorrect qanswers q-d

,The qviscosity qof qoil:
1. qIs qthe qtemperature qat qwhich qoil qwill qburn
2. qDetermines qthe qability qof qthe qoil qto qsupport qa qload
3. qWill qprevent qcorrosion qof qbearings
4. qIndicates qthe qliquid's qability qto qflow
a. q2, q3, q4
b. q1, q3
c. q3, q4
d. q1, q2, q4
e. q2, q4. q- qcorrect qanswers q-e

A qsemi-solid qlubricant:
1. qHas qa qhigh qviscosity
2. qIs qto qseal qout qdirt qand qwater qfrom qbearings
3. qCannot qbe qused qfor qhigh qtemperature
4. qCan qbe qfiltered
a. q1, q2, q3, q4
b. q1, q2, q3
c. q2, q3, q4
d. q1, q2, q4
e. q3, q4. q- qcorrect qanswers q-b

If qan qoil's qviscosity qchanges qmuch qwith qlittle qtemperature qchange, qit qwill qthen
qhave qa:
a. qLow qviscosity qindex
b. qHigh qpour qpoint
c. qHigh qcarbon qresidue
d. qHigh qviscosity qindex
e. qLow qpour qpoint. q- qcorrect qanswers q-a

Oil qadditives:
a. qShould qnot qaffect qall qother qcharacteristics qgreatly
b. qWill qalways qaffect qthe qpour qpoint qgreatly
c. qShould qbe qused qas qlittle qas qpossible
d. qAre qnot qa qcomponent qof qmost qlubrication qoil
e. qNever qlose qtheir qeffect qduring quse qof qthe qoil. q- qcorrect qanswers q-a

The qtwo qmost qimportant qfunctions qof qlubrication qare qfor qthe qreduction qof:
a. qFriction qand qwear
b. qFriction qand qheat
c. qHeat qand qcorrosion
d. qFlash qpoint qand qfire qpoint
e. qPour qpoint qand qcorrosion. q- qcorrect qanswers q-a

The qviscosity qof qoil:

,a. qIs qthe qtemperature qat qwhich qoil qwill qburn
b. qWill qprevent qcorrosion qof qbearings
c. qDetermines qthe qability qof qthe qoil qto qsupport qa qload
d. qRefers qto qcarbon qcontent qof qthe qoil
e. qIs qa qmeasure qof qits qability qto qfreeze. q- qcorrect qanswers q-c

The qpoint qat qwhich qoil qwill qgive qoff qenough qvapor qto qignite qand qburn
qcontinuously, qis qknown qas qthe q_____ qpoint.
a. qFlash
b. qIgnition
c. qFire
d. qVaporization
e. qBurning. q- qcorrect qanswers q-c

The qproperty qof qoil qthat qindicates qits qability qto qsupport qa qload qis:
a. qViscosity
b. qViscosity qindex
c. qPour qpoint
d. qFloc qpoint
e. qConsistency. q- qcorrect qanswers q-a

The qmajority qof qlubricants qare:
a. qAnimal qfats
b. qSynthetic qoils
c. qMineral qoils
d. qGreases
e. qSolid qtypes. q- qcorrect qanswers q-c

The qlubricant qperforms qa qnumber qof qfunctions. qIndicate qwhich qof qthe q
following qare qthe qmost qimportant:
1. qReduce qwear
2. qTemperature qcontrol
3. qReduce qcorrosion
4. qReduce qfriction
a. q1, q2
b. q2, q3
c. q1, q3
d. q1, q4
e. q3, q4. q- qcorrect qanswers q-d

The qkind qof qgrease qused qfor qheavily qloaded qmachinery qoperating qat qslow
qspeeds qis qthe:
a. qSodium qbase qgrease
b. qSpecialty qgrease
c. qMixed qbase qgrease
d. qCalcium qbase qgrease

, e. qAcid qbase qgrease. q- qcorrect qanswers q-b

If qyou qdesire qan qoil qto qflow qat qa qmuch qlower qtemperature, qyou qwould qmost
qlikely qadd:
a. qA qviscosity qindex qimprover
b. qPour qpoint qdepressants
c. qA qdispersant
d. qA qthickening qagent
e. qLow qviscosity qoil. q- qcorrect qanswers q-b

Which qof qthe qfollowing qhas qthe qgreatest qeffect qon qthe qviscosity qof qlubrication
qoil?
a. qPressure
b. qLoad
c. qFlow
d. qTemperature
e. qSpeed. q- qcorrect qanswers q-d

The qinstrument qwhich qmeasures qthe qviscosity qof qan qoil qat qa qcertain qtemperature
qas qit qflows qthrough qa qsmall qdiameter qtube, qis qcalled:
a. qAn qorifice qplate
b. qA qSaybolt qviscometer
c. qAn qoil qmeter
d. qA qthermocouple
e. qA qpyrometer. q- qcorrect qanswers q-b

The qresistance qof qa qliquid qto qinternal qdeformation qor qshear qis qknown qas:
a. qPour qpoint
b. qViscosity qindex
c. qFlash qpoint
d. qViscosity
e. qFriction qresistance. q- qcorrect qanswers q-d

Grease qis qnot qa qsuitable qlubricant:
a. qIf qthe qatmosphere qcontains qa qlot qof qmoisture
b. qWhen qthe qatmosphere qis qdusty
c. qIf qcorrosion qprotection qis qdesired qduring qdowntime
d. qIn qthe qfood qindustry
e. qIf qa qlarge qamount qof qcooling qis qdesired. q- qcorrect qanswers q-e

Lubrication qcan qbe qachieved qby qusing:
a. qAbrasives
b. qA qgas
c. qAir
d. qGrease qor qoil
e. qA qvapor. q- qcorrect qanswers q-d