Combination Test with correct
answers 2026
1.vTherevarevthingsvthatvavdrivervcanvdovtovpreventvavrollover.vTheyvare:v(1)vkeepvthevcargovasvc
losev tovthevgroundvasvpossible;vandv(2):vgGovslowvaroundvturns
2.vTherevarevthingsvthatvavdrivervcanvdovtovpreventvavrollover.vTheyvare:v(1)vgovslowvaroundvtur
ns;va ndv(2):vgKeepvthevcargovasvlowvtovthevgroundvasvpossible
3.vSemitrailersvmadevbeforev1975vthatvarevequippedvwithvairvbrakes:v-
gOftenvdovnotvhavevspringvbrakes
4.vInvnormalvdriving,vsomevdriversvusevthevhandvvalvevbeforevthevbrakesvpedalvtovpreventvavjack
kni fe.vWhichvofvthesevstatementsvisvtrue?vgItvshouldvnotvbevdone
5.vWhenvshouldvyouvusevthevhandvvalvevtovparkvavcombinationvvehicle?vgNever
6.vThevsafetyvcatchvforvthevfifthvwheelvlockingvlevervmustvbev___________vforvavcouplingvtovbevc
o mpleted.vgOvervthevlockingvlever
, 7.vWhichvpartvofvthevkingpinvshouldvthevlockingvjawsvclosevaround?vgThevshank
8.vThevfifthvwheelvlockingvlevervisvnotvlockedvaftervthevjawsvclosevaroundvthevkingpin.vThisvmean
svt hat:vg
Thevcouplingvisvnotvrightvandvshouldvbevfixedvbeforevdrivingvthevcoupledvunit
9.vWhyvshouldvyouvbevsurevthatvthevfifthvwheelvplatevisvgreasedvasvrequired?v-
gTovpreventvsteeringvproblems
10.vYouvarevaboutvtovbackvyourvtractorvundervavsemitrailer.vThevtrailervisvatvthevrightvheightvwhe
nvt he:vgTrailervwillvbevliftedvslightlyvwhenvthevtractorvbacksvundervit
11.vYouvarevcouplingvavtractorvtovavsemitrailervandvhavevbackedvupvbutvarevnotvundervit.vWhatvs
hou ldvyouvhookvupvbeforevbackingvunder?vgThevemergencyvandvservicevcable
12.vWhenvyouvgetvreadyvtovbackvundervavsemitrailervyouvshouldvlinevup:v-
gDirectvinvfrontvofvthevtrailer
13.vBeforevyouvbackvundervavtrailer,vmakevsurevthe:vgTrailervbrakesvarevlocked
14.vYouvshouldvnotvbackvavtractorvundervavtrailervuntilvwholevairvsystemvis:v-gAtvnormalvpressure
15.vYouvarevcouplingvavtractorvandvsemitrailervandvhavevconnectedvthevairvlines,vBeforevbackingv
un dervthevtrailervyouvshould:vg
Supplyvairvtovthevtrailervsystem,vthenvpullvoutvthevairvsupplyvknobvtovlockvthevtrailervbrakes
16.vYouvhavevcoupledvwithvavsemitrailer.vWherevshouldvyouvputvthevfrontvtrailervsupportsvbefore
vdr ivingvaway?vgFullyvraisedvwithvthevcrankvhandlevsecuredvinvitsvbracket
17.vHowvmuchvspacevshouldvbevbetweenvthevuppervandvlowervfifthvwheelvaftervcoupling?vg-None
answers 2026
1.vTherevarevthingsvthatvavdrivervcanvdovtovpreventvavrollover.vTheyvare:v(1)vkeepvthevcargovasvc
losev tovthevgroundvasvpossible;vandv(2):vgGovslowvaroundvturns
2.vTherevarevthingsvthatvavdrivervcanvdovtovpreventvavrollover.vTheyvare:v(1)vgovslowvaroundvtur
ns;va ndv(2):vgKeepvthevcargovasvlowvtovthevgroundvasvpossible
3.vSemitrailersvmadevbeforev1975vthatvarevequippedvwithvairvbrakes:v-
gOftenvdovnotvhavevspringvbrakes
4.vInvnormalvdriving,vsomevdriversvusevthevhandvvalvevbeforevthevbrakesvpedalvtovpreventvavjack
kni fe.vWhichvofvthesevstatementsvisvtrue?vgItvshouldvnotvbevdone
5.vWhenvshouldvyouvusevthevhandvvalvevtovparkvavcombinationvvehicle?vgNever
6.vThevsafetyvcatchvforvthevfifthvwheelvlockingvlevervmustvbev___________vforvavcouplingvtovbevc
o mpleted.vgOvervthevlockingvlever
, 7.vWhichvpartvofvthevkingpinvshouldvthevlockingvjawsvclosevaround?vgThevshank
8.vThevfifthvwheelvlockingvlevervisvnotvlockedvaftervthevjawsvclosevaroundvthevkingpin.vThisvmean
svt hat:vg
Thevcouplingvisvnotvrightvandvshouldvbevfixedvbeforevdrivingvthevcoupledvunit
9.vWhyvshouldvyouvbevsurevthatvthevfifthvwheelvplatevisvgreasedvasvrequired?v-
gTovpreventvsteeringvproblems
10.vYouvarevaboutvtovbackvyourvtractorvundervavsemitrailer.vThevtrailervisvatvthevrightvheightvwhe
nvt he:vgTrailervwillvbevliftedvslightlyvwhenvthevtractorvbacksvundervit
11.vYouvarevcouplingvavtractorvtovavsemitrailervandvhavevbackedvupvbutvarevnotvundervit.vWhatvs
hou ldvyouvhookvupvbeforevbackingvunder?vgThevemergencyvandvservicevcable
12.vWhenvyouvgetvreadyvtovbackvundervavsemitrailervyouvshouldvlinevup:v-
gDirectvinvfrontvofvthevtrailer
13.vBeforevyouvbackvundervavtrailer,vmakevsurevthe:vgTrailervbrakesvarevlocked
14.vYouvshouldvnotvbackvavtractorvundervavtrailervuntilvwholevairvsystemvis:v-gAtvnormalvpressure
15.vYouvarevcouplingvavtractorvandvsemitrailervandvhavevconnectedvthevairvlines,vBeforevbackingv
un dervthevtrailervyouvshould:vg
Supplyvairvtovthevtrailervsystem,vthenvpullvoutvthevairvsupplyvknobvtovlockvthevtrailervbrakes
16.vYouvhavevcoupledvwithvavsemitrailer.vWherevshouldvyouvputvthevfrontvtrailervsupportsvbefore
vdr ivingvaway?vgFullyvraisedvwithvthevcrankvhandlevsecuredvinvitsvbracket
17.vHowvmuchvspacevshouldvbevbetweenvthevuppervandvlowervfifthvwheelvaftervcoupling?vg-None
