Calculate values such as rolling circumference differences, speed deviations, changes in ground clearance, tire diameter, rim width, track width changes or the use of spacers for adjusting the offset (ET calculator) and find out which tires or wheels are best suited for your vehicle. You will also receive a helpful graphical representation.
You can find updated 2026 practice materials at ScoalaDRPCIV.ro or SoferOnline.ro .
In Romania, the " 45 de chestionare auto categoria B " refers to a structured learning method where candidates practice all official questions distributed across 45 unique tests to ensure 100% coverage of the exam database. This approach is designed to simulate the official DGPCI (formerly DRPCIV) examination environment. Key Features of the 45 Questionnaires Comprehensive Coverage
provides the most authentic simulation of the actual examination interface.
Chestionarele sunt structurate pentru a testa atât cunoștințele tehnice, cât și comportamentul rutier. Întrebările pot fi clasificate în trei categorii principale:
Aceasta este "groaza" cursanților. Regula de aur:
Results
Existing
Desired
Tire circumference
?
Rolling circumference
?
Tire height (sidewall)
?
Tire diameter
?
Rim size
?
Rim width
?
Poke (Outer Edge)
?
Inset (Inner Edge)
?
Show results in
Comparison & differences
Difference in rolling circumference
?
Speedometer at 100 km/h or mph
?
The following differences also arise:
Difference in ground clearance
?
Change to the outer edge of the rim per side
?
Change to the inner edge of the rim per side
?
Graphic display appears after entering values
The strut illustration is for illustrative purposes only
2: Read the result
Note the difference in rolling circumference:
Rolling circumferences are generally approved in the range +1.5% und -2.5% g. Please check with the responsible inspector beforehand.
You can find updated 2026 practice materials at ScoalaDRPCIV.ro or SoferOnline.ro .
In Romania, the " 45 de chestionare auto categoria B " refers to a structured learning method where candidates practice all official questions distributed across 45 unique tests to ensure 100% coverage of the exam database. This approach is designed to simulate the official DGPCI (formerly DRPCIV) examination environment. Key Features of the 45 Questionnaires Comprehensive Coverage
provides the most authentic simulation of the actual examination interface.
Chestionarele sunt structurate pentru a testa atât cunoștințele tehnice, cât și comportamentul rutier. Întrebările pot fi clasificate în trei categorii principale: