CDL COMBINATION TEST QUESTIONS
gh gh gh
WITH CORRECT ANSWERS 2025
gh gh gh gh
If g h you g h cross g h connect g h the g h two g h air g h lines g h the g h following g h will g h result g h -
g h CORRECT g h ANSWER- ghYou g h will g h not g h have g h air g h going g h to g h the g h trailer
g h brakes
You g h have g h coupled g h with g h a g h semi-
trailer. g h In g h what g h position g h should g h you g h put g h the g h front g h trailer g h supports g h before
g h driving g h away? g h - ghCORRECT g h ANSWER-Fully g h raised g h with g h the g h crank g h handle
g h secured g h in g h its g h bracket
Th g h trailer g h air g h supply g h control: g h - g h CORRECT g h ANSWER-Is g h a g h red, g h eight g h sided g h knob
A g h device g h which g h connects g h the g h service g h and g h emergency g h air g h lines g h from g h the g h truck
g h to g h the g h trailer g h is ghcalled.. g h - g h CORRECT g h ANSWER-Glad g h hands
If g h one g h of g h the g h glad g h hands g h on g h your g h blue g h air g h line g h is g h missing g h a g h seal: g h -
g h CORRECT g h ANSWER- ghYou g h might g h end g h up g h with g h a g h service g h line g h air g h leak
In g h order g h to g h supply g h air g h to g h the g h trailer, g h you g h must g h first: g h - g h CORRECT
g h ANSWER- ghStop g h engine g h so g h you g h can g h hear g h the g h brakes
The g h hand g h valve g h should g h be g h used: g h - g h CORRECT g h ANSWER-To g h test g h the g h trailer g h brakes
The g h air g h leakage g h rate g h for g h a g h combination g h vehicle g h (engine g h off, g h brakes g h on) g h should
g h not g h be g h more g h t ghhan g h ghpsi g h per g h minute g h - g h CORRECT g h ANSWER-4
When g h should g h you g h use g h the g h hand g h valve g h to g h park g h a g h combination g h vehicle? g h -
g h CORRECT g h ANSWER- ghNever
, When g h you g h get g h ready g h to g h back g h under g h the g h semi-trailer g h you g h should g h line g h up g h -
g h CORRECT g h ANSWER- ghDirectly g h in g h front g h of g h the g h trailer
If g h the g h service g h air g h line g h comes g h apart g h while g h you g h are g h driving g h a g h combination
g h vehicle g h but g h the g h emer ghgency g h line g h stays g h together, g h what g h will g h happen g h right
g h away g h - g h CORRECT g h ANSWER-
Nothing g h is g h likely g h to g h happen g h until g h you g h try g h to g h apply g h the g h brakes
When g h uncoupling, g h if g h you g h park g h the g h trailer ghat g h an g h angle... g h -
g h CORRECT g h ANSWER- ghYou g h could g h do g h damage g h to g h the g h landing g h gear
Which g h of g h these g h statements g h is g h true? g h - g h CORRECT g h ANSWER-
"Bobtail" g h tractors g h can g h take g h longer g h to g h stop g h than g h a g h combination g h vehicle g h loaded
g h to g h the g h maximu ghm g h gross g h weight
In g h normal g h driving, g h some g h drivers g h use g h the g h hand g h valve g h before g h applying g h the g h brake
g h pedal g h to g h prev ghent g h a g h jackknife. g h Which g h of g h these g h statements g h is g h true? g h -
g h CORRECT g h ANSWER-
It g h should g h not g h be g h done
When g h you g h inspect g h the g h coupling, g h check g h to g h ensure g h that: g h -
g h CORRECT g h ANSWER- ghThere's g h a g h little g h slack g h in g h the g h air g h lines
When g h backing g h under g h a g h tractor g h under g h a g h trailer g h you g h should g h expect: g h - g h CORRECT
g h ANSWER- ghTrailer g h will g h be g h lifted g h slightly g h when g h the g h tractor g h back g h under g h it
A g h king g h pin g h is: g h - g h CORRECT g h ANSWER-
A g h pin g h which g h locks g h the g h trailer g h to g h the g h tractor g h on g h the g h fifth g h wheel
The g h safety g h catch g h for g h the g h fifth g h wheel g h locking g h level g h must g h be g h ghfor g h a
g h coupling g h to g h be g h comp ghlete. g h - g h CORRECT g h ANSWER-Over g h the g h locking g h lever
gh gh gh
WITH CORRECT ANSWERS 2025
gh gh gh gh
If g h you g h cross g h connect g h the g h two g h air g h lines g h the g h following g h will g h result g h -
g h CORRECT g h ANSWER- ghYou g h will g h not g h have g h air g h going g h to g h the g h trailer
g h brakes
You g h have g h coupled g h with g h a g h semi-
trailer. g h In g h what g h position g h should g h you g h put g h the g h front g h trailer g h supports g h before
g h driving g h away? g h - ghCORRECT g h ANSWER-Fully g h raised g h with g h the g h crank g h handle
g h secured g h in g h its g h bracket
Th g h trailer g h air g h supply g h control: g h - g h CORRECT g h ANSWER-Is g h a g h red, g h eight g h sided g h knob
A g h device g h which g h connects g h the g h service g h and g h emergency g h air g h lines g h from g h the g h truck
g h to g h the g h trailer g h is ghcalled.. g h - g h CORRECT g h ANSWER-Glad g h hands
If g h one g h of g h the g h glad g h hands g h on g h your g h blue g h air g h line g h is g h missing g h a g h seal: g h -
g h CORRECT g h ANSWER- ghYou g h might g h end g h up g h with g h a g h service g h line g h air g h leak
In g h order g h to g h supply g h air g h to g h the g h trailer, g h you g h must g h first: g h - g h CORRECT
g h ANSWER- ghStop g h engine g h so g h you g h can g h hear g h the g h brakes
The g h hand g h valve g h should g h be g h used: g h - g h CORRECT g h ANSWER-To g h test g h the g h trailer g h brakes
The g h air g h leakage g h rate g h for g h a g h combination g h vehicle g h (engine g h off, g h brakes g h on) g h should
g h not g h be g h more g h t ghhan g h ghpsi g h per g h minute g h - g h CORRECT g h ANSWER-4
When g h should g h you g h use g h the g h hand g h valve g h to g h park g h a g h combination g h vehicle? g h -
g h CORRECT g h ANSWER- ghNever
, When g h you g h get g h ready g h to g h back g h under g h the g h semi-trailer g h you g h should g h line g h up g h -
g h CORRECT g h ANSWER- ghDirectly g h in g h front g h of g h the g h trailer
If g h the g h service g h air g h line g h comes g h apart g h while g h you g h are g h driving g h a g h combination
g h vehicle g h but g h the g h emer ghgency g h line g h stays g h together, g h what g h will g h happen g h right
g h away g h - g h CORRECT g h ANSWER-
Nothing g h is g h likely g h to g h happen g h until g h you g h try g h to g h apply g h the g h brakes
When g h uncoupling, g h if g h you g h park g h the g h trailer ghat g h an g h angle... g h -
g h CORRECT g h ANSWER- ghYou g h could g h do g h damage g h to g h the g h landing g h gear
Which g h of g h these g h statements g h is g h true? g h - g h CORRECT g h ANSWER-
"Bobtail" g h tractors g h can g h take g h longer g h to g h stop g h than g h a g h combination g h vehicle g h loaded
g h to g h the g h maximu ghm g h gross g h weight
In g h normal g h driving, g h some g h drivers g h use g h the g h hand g h valve g h before g h applying g h the g h brake
g h pedal g h to g h prev ghent g h a g h jackknife. g h Which g h of g h these g h statements g h is g h true? g h -
g h CORRECT g h ANSWER-
It g h should g h not g h be g h done
When g h you g h inspect g h the g h coupling, g h check g h to g h ensure g h that: g h -
g h CORRECT g h ANSWER- ghThere's g h a g h little g h slack g h in g h the g h air g h lines
When g h backing g h under g h a g h tractor g h under g h a g h trailer g h you g h should g h expect: g h - g h CORRECT
g h ANSWER- ghTrailer g h will g h be g h lifted g h slightly g h when g h the g h tractor g h back g h under g h it
A g h king g h pin g h is: g h - g h CORRECT g h ANSWER-
A g h pin g h which g h locks g h the g h trailer g h to g h the g h tractor g h on g h the g h fifth g h wheel
The g h safety g h catch g h for g h the g h fifth g h wheel g h locking g h level g h must g h be g h ghfor g h a
g h coupling g h to g h be g h comp ghlete. g h - g h CORRECT g h ANSWER-Over g h the g h locking g h lever
