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Question:

Modern air brakes combine three different systems. They are the service, the parking, and the _____ brakes.

A Emergency

explanation

Air brakes are really three different braking systems: service brake, parking brake, and emergency brake.

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Alkam 2126

4 years ago

It a great app to study for your CDL tests

<img alt="" data-src="https://secure.gravatar.com/avatar/f79cda84d2c4b7b363385b30bb67cb0f?s=64&d=mm&r=g" class="lazyload" src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" /><noscript><img src="https://secure.gravatar.com/avatar/f79cda84d2c4b7b363385b30bb67cb0f?s=64&d=mm&r=g" alt=""/>

Cbow33

4 years ago

Great app

<img alt="" data-src="https://secure.gravatar.com/avatar/f79cda84d2c4b7b363385b30bb67cb0f?s=64&d=mm&r=g" class="lazyload" src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" /><noscript><img src="https://secure.gravatar.com/avatar/f79cda84d2c4b7b363385b30bb67cb0f?s=64&d=mm&r=g" alt=""/>

Livvy2u

4 years ago

Mom

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