CDL Oklahoma HazMAt practice test questions With Correct Answers 2023 Where are the two main places where the hazardous material identification number appears?On the package and on paperwork at the shipping destination On the package and on paperwork at the shipping point of origin On the shipping papers and on the package On the shipping papers and on a secret document in the driver's wallet - ANSWERThe two main places where you must keep the hazardous material identification numbers are on your shipping papers and on the packages themselves, as these are the places that emergency personnel have been trained to check immediately.Your engine runs a pump when you are delivering compressed gas. Should you turn off your engine before or after you unhook the hoses after finishing that delivery?Turn it off before unhooking.Turn if off after unhooking.Leave it on the entire time.Turn it off on arrival—use other power to run the pump. - ANSWERIf your engine is required to be on when you are pumping a load of compressed gas, you are always adding an extra layer of danger to a situation. Make sure that you turn off the engine before you unhook any hoses, as soon as the delivery is completed.How often should you check the tires on a placarded trailer that has dual tires?Start of each day and every time you stop Once every three hours Once every 100 miles Each time you stop - ANSWERIf you have a trailer with placards and dual tires, you should check your tires at the beginning of each day and each time that you stop for any reason, whether that's for a rest or to refuel. Remember that you must use a tire pressure gauge to get an accurate reading.Which of the following is NOT something you need to know in order to determine if you need to use placards?The substance or material's hazard class The amount of all hazardous materials of all classes in your vehicle The manufacturing date for the materials The amount of a substance or material being shipped - ANSWERYou do not need to know when a product is manufactured or expires unless your company has an additional responsibility. When it comes to hazardous materials, you do need to know the amount of the hazardous material being shipped, its hazard class, and what will be the total amount of all hazardous materials of all classes on your commercial vehicle during your trip. 1 / 2
If you are carrying Division 1.2 or 1.3 materials, how far away must you park from the traveled portion of the roadway?At least half a mile At least ten feet At least twenty feet At least five feet - ANSWERIf you are carrying explosive materials from Division 1.2 or 1.3, never park your vehicle less than five (5) feet away from a traveled section of the road or highway. If you cannot make it even five feet, then it is a very serious emergency indeed, and you should be calling emergency services personnel if you have explosives on board.What is a technical name?The name for a hazardous material used in scientific journals and texts, recognized as its chemical and microbiological name The name for a hazardous material most commonly used on the street The name for a hazardous material most commonly used in the trucking community, accepted as standard The medical term for hazardous materials used by medical personnel - ANSWERThe technical name is one used by scientists, which appears in journals, articles, and technical handbooks. It provides a standard terminology for referring to various dangerous substances, instead of using anyone's slang terms, which can vary (to dangerous effects) from region to region.Which of the following three hazard classes should NOT be placed into a temperature- controlled trailer (one with a heater/air conditioner unit)?Classes 1, 3, and 6 Classes 1, 2.1, and 3 Classes 1, 4, and 5.1 Classes 1, 3, and 4 - ANSWERThe three hazard classes that must be kept in a trailer without automatic heating and cooling are: explosives (1), flammable gases (2.1), and flammable liquids (3), as they are particularly volatile.Cargo tanks are filled while they are off your vehicle, then attached for transportation.bulk packaging permanently attached to your vehicle.bulk packaging temporarily attached to your vehicle.only made in one size. - ANSWERCargo tanks are the style of tanks that are permanently attached to your commercial vehicle. There are many different styles used for a variety of different materials.What are shippers trying to accomplish when they package the material?Make it easy to identify.Make it easy to open and close.Make it as light as possible.
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