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Maryland State Inspection-technical Exam Study Questions and Answers Verified 100% Correct
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Maryland State Inspection-technical Exam Study Questions and Answers Verified 100% Correct
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Maryland State Inspection-technical ExamStudy Questions and Answers Verified 100%
Correct
Trailer air suspension reject if - ✔✔air begins to lift vehicle before 55psi
leakage greater than 3psi in 5 minutes
Trailers under 3000 ponds GVWR - ✔✔not required to have brakes
Trailers 3001 to 10000 GVWR - ✔✔required to have brakes onon all wheels of at least one
axle
Trailers over 10000 pounds GVWR - ✔✔required to have brakes on all wheels
Bonded linings on trailer - ✔✔reject below 2/32 of an inch(same as car)
Riveted linings on trailer - ✔✔Reject if below 2/32 of an inch above any rivet
trailer brake master cylinder - ✔✔reject if half full of brake fluid in any section
Trailer electrical brakes inspection - ✔✔insert low range DC ammeter in circuit between
controller and brakes ammeter should read ZERO with controller in OFF position. Divide
ammeter reading by number of brakes.
Electric trailer brakes for - ✔✔maximum amperage per brake is more 20% or more than 30%
below brake manufacturers maximum current rating.
, Trailer Emergency Brakes required on - ✔✔trailers 3000 pounds and above manufactured
after June 01 1970 to remain applied 15 minutes on breakaway from tow vehicle
Trailer tire tread failure-same as Class A - ✔✔Tire tread groove worn less than 2/32 inch on
any three locations spaced approx equally on tire
Tread wear indicators contact the road in two adjacent grooves at three locations spaced
equally around the tire.
Tandem trailer tire Failure - ✔✔Diameter of one of the duals is not within 1/2 inch of the
other.
If a gauge block can be inserted between the tire and caliper.
Do not reject tires for - ✔✔difference in brand or tread design
Reject tires for - ✔✔significantly larger sizes that require suspension modification to prevent
tire body contact
Every trailer 3000 pounds and over - ✔✔must be equipped with ICC bar not more than 30
inches above highway when vehicle is moving with a frame not exceeding 18 inches.
550 rule - ✔✔5 years 50000 miles
Catalytic converters - ✔✔any vehicle under the 550 rule should have the catalytic converter
replaced with OEM
Fuel filler inlet restricter - ✔✔should be not larger than 0.950 inch
PCV system - ✔✔Inspect for presence and condition
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