Maryland CDL General Knowledge case studies
Maryland CDL General Knowledge · Put your knowledge to work in context.
The Maryland Commercial Driver's License (CDL) is the credential the MDOT Motor Vehicle Administration issues to drivers who operate commercial motor vehicles on Maryland roads. The MVA lists Commercial Driver's License (CDL) under its Licenses & IDs services, and it points commercial drivers to a dedicated business section of the site. The Maryland CDL General Knowledge case studies are 5 cases and about 4,693 words.
1Cold-Morning Pre-Trip in Hagerstown: What Keeps the Truck Parked
in January at a Hagerstown truck stop, 27°F with a freezing-fog advisory for I-70 west. You are assigned a 2016 three-axle tractor and a 53-foot van, gross weight 76,400 lb, loaded with palletized goods; your run is 190 miles to Cumberland for a 6:00 a.m.
983 words, about 5 min2The Air Brake Test That Almost Passed
You are in a level Baltimore yard on a dry morning, running the air brake checks on a 2018 tractor pulling a loaded van. The compressor governor cuts out at 122 psi and cuts back in at 100 psi.
942 words, about 5 min3Red Line on I-81
You are 40 miles south of Hagerstown on I-81 at 11:40 p.m., running a 78,000-lb tractor-trailer with a 53-foot van, when you hear a sharp bang and feel the trailer brakes set hard. The rig slows and you get it onto the shoulder.
913 words, about 5 min4Placarded Load Meets a Tunnel Sign
You load at a chemical distributor in Curtis Bay, Baltimore: 18 drums of UN 1263 paint, Class 3, PG II, and 8 drums of UN 1789 hydrochloric acid, Class 8, PG II, total gross weight 9,800 lb, all on one flatbed with a tarpaulin. Your delivery is in Dundalk, on the east side of the harbor, at 4:00 p.m.
911 words, about 5 min5Half-Empty Compartments on the Sideling Hill Grade
You are assigned a 5,500-gallon smooth-bore tanker with three compartments - 2,000 forward, 2,000 middle, 1,500 rear - loaded with 3,800 gallons of a petroleum distillate. The shipper loaded the middle and rear compartments and left the forward compartment empty.
944 words, about 5 min