How many questions can you miss on the combination?

How many questions can you miss on the CDL combination test? You are allowed to miss up to 4 questions. To pass the combination written test, you’ll need to answer 16 questions correctly and achieve a score of 80%.

How many questions are on the CDL combination test pa?

20
The test is designed to prepare you for the Combination Vehicles portion of your 2022 Commercial Driver’s License exam. There are several answer options, but only one of them is correct….FREE Pennsylvania CDL Combination Practice Test 2022 | PA.

How many questions: 20
Passing score: 80%

Which of these is something you should do when driving a combination vehicle?

Which of these is something you should do when driving a combination vehicle? Drive around corners, on ramps, and off ramps slowly. Avoid quick lane changes and sudden movement with your steering wheel. Drive slow enough at night so you do not “out drive” the distance your headlights illuminate.

What is combination in CDL?

A combination vehicle is the combining of a tractor unit with one or more trailers. This is commonly called a “semi” or “semi truck.” The tractor is connected to the trailer(s) with a fifth-wheel and/or a converter dolly. The fifth wheel allows the combination vehicle to bend in the middle.

Which glad hand goes where?

Usually the glad hands ( connectors) are colour coded, red to red etc… but if not the supply ( RED) is normally on the driver side of the trailer , or rear of tractor.. The Blue is called the ” service’ line, it is used as a ‘signal” line to activate the trailer service brakes ( but not the PARK brakes)…

When should you use the hand valve to park a combination vehicle CDL?

The trailer hand valve should be used only to test the trailer brakes. Do not use it in driving because of the danger of making the trailer skid. The foot brake sends air to all the brakes on the vehicle (including the trailer(s). There is much less danger of causing a skid or jackknife when using just the foot brake.

What tractor trailer combination is most likely to roll over?

A tractor trailer vehicle combination is most likely to role over in a turn when the configuration includes? Triple 28 foot trailer.