Take Swiss Category C Theory (Truck) Practice Questions - Switzerland Driving Theory Test - Category C (Heavy Motor Vehicles) Exam

QUESTION 1 / 25

What is the maximum permissible total width for standard heavy goods vehicles in Switzerland under VTS Article 64?

Choose one answer below.

A2.55 meters (and 2.60 meters for conditioned refrigerated vehicles with insulated walls >= 45 mm)✓B2.50 meters for all commercial vehicles✓C2.75 meters✓D3.00 meters✓

QUESTION 2 / 25

What is the maximum legal vehicle height for heavy goods vehicles on Swiss roads?

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A3.80 meters✓B4.00 meters✓C4.20 meters✓D4.50 meters✓

QUESTION 3 / 25

What is the maximum permissible length for a rigid two-axle or multi-axle truck (Solo-Lastwagen) in Switzerland?

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A10.00 meters✓B14.00 meters✓C12.00 meters✓D16.50 meters✓

QUESTION 4 / 25

What is the general maximum speed limit for heavy motor vehicles with a permissible total weight exceeding 3.5 tonnes on Swiss motorways (Autobahnen)?

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A100 km/h✓B90 km/h✓C60 km/h✓D80 km/h✓

QUESTION 5 / 25

During what hours does the statutory Night Driving Ban (Nachtfahrverbot) apply to heavy goods vehicles over 3.5 tonnes in Switzerland?

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ABetween 22:00 and 05:00✓BBetween 20:00 and 06:00✓CBetween 00:00 and 04:00✓DBetween 23:00 and 06:00✓

QUESTION 6 / 25

What is the Sunday and Public Holiday Driving Prohibition (Sonntagsfahrverbot) in Switzerland for heavy goods vehicles over 3.5 tonnes?

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AHeavy trucks are banned on Sundays between 12:00 and 18:00 only✓BHeavy goods vehicles exceeding 3.5 tonnes are prohibited from driving all day on Sundays and official federal public holidays (from 00:00 to 24:00)✓CThe Sunday ban applies only to foreign-registered trucks✓DThe ban applies only if temperatures exceed 30°C✓

QUESTION 7 / 25

What is the maximum permissible total weight for a standard 2-axle rigid truck in Switzerland?

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A15 tonnes✓B26 tonnes✓C18 tonnes✓D32 tonnes✓

QUESTION 8 / 25

What is the maximum permissible total weight for a 4-axle rigid truck with two steered axles in Switzerland?

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A28 tonnes✓B40 tonnes✓C36 tonnes✓D32 tonnes✓

QUESTION 9 / 25

What is the general maximum weight limit for commercial road vehicle combinations (tractor-semitrailer or truck-trailer with 5 or more axles) in Switzerland?

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A40 tonnes✓B44 tonnes✓C34 tonnes✓D50 tonnes✓

QUESTION 10 / 25

What is the legal maximum single drive axle load (Antriebsachslast) for heavy motor vehicles in Switzerland?

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A10.0 tonnes✓B11.5 tonnes✓C13.0 tonnes✓D8.5 tonnes✓

QUESTION 11 / 25

On a Swiss motorway with three or more lanes in the same direction, which lane(s) are heavy goods vehicles over 3.5 tonnes prohibited from using?

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AThe rightmost lane✓BThe middle lane✓CThe leftmost (third) lane✓DHeavy trucks may use all three lanes equally✓

QUESTION 12 / 25

What is the Distance-Related Heavy Vehicle Fee (LSVA / Leistungsabhängige Schwerverkehrsabgabe) in Switzerland?

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AA flat CHF 40 annual sticker applied to the windshield✓BA voluntary environmental donation paid at gas stations✓CA parking meter fee for loading docks✓DA statutory federal tax on goods vehicles > 3.5 t calculated based on maximum permissible gross weight, emission class (Euro standard), and kilometers traveled in Switzerland✓

QUESTION 13 / 25

What does a circular white road sign with a red border depicting a black truck with a red diagonal bar across it (Sign 2.16) mean?

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ANo entry for heavy motor vehicles (trucks over 3.5 tonnes permissible weight, excluding passenger buses and motorhomes)✓BTruck parking lot ahead✓CWeigh station open✓DMandatory truck overtaking zone✓

QUESTION 14 / 25

What does road sign 2.44 'No overtaking for heavy goods vehicles' (Überholverbot für Lastwagen) prohibit?

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AIt prohibits passenger cars from overtaking heavy trucks✓BIt prohibits drivers of heavy goods vehicles exceeding 3.5 tonnes from overtaking motorized vehicles and combinations with more than two wheels✓CIt prohibits all vehicles from driving faster than 40 km/h✓DIt prohibits trucks from using the service brake✓

QUESTION 15 / 25

If traffic stops in a Swiss road tunnel, how should a Category C driver position the truck?

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AStop close enough that the truck ahead cannot change lanes✓BLeave at least about 5 meters to the vehicle ahead, switch off the engine if the stop is prolonged, and follow tunnel instructions✓CReverse to the last tunnel entrance unless police are already present✓DStop only in the left lane so emergency vehicles can use the right lane✓

QUESTION 16 / 25

What equipment must be carried on board every heavy goods vehicle over 3.5 tonnes in Switzerland?

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AA spare transmission and spare turbocharger✓BA snowplow blade attached to the front bumper year-round✓CTwo fire axes and a sledgehammer✓DAn approved breakdown triangle and at least one suitable wheel chock; a high-visibility vest is strongly recommended but is not generally mandatory Swiss vehicle equipment✓

QUESTION 17 / 25

When driving a heavy commercial vehicle on steep Alpine mountain descents (Gefälle), what is the correct braking technique to prevent brake overheating?

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ASelect a low gear matching the climb gear (engine braking) and engage the continuous brake (retarder/exhaust brake), using the service brake only in short, firm deceleration pulses when needed✓BShift into neutral and rely purely on the service footbrake✓CTurn off the engine ignition to cool down the radiator✓DHold the service brake pedal down lightly and continuously for the entire 15 km descent✓

QUESTION 18 / 25

What is the primary function of the Air Dryer (Lufttrockner) in a commercial vehicle's pneumatic brake system?

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ATo cool the truck cabin on hot summer days✓BTo remove moisture and oil vapor from the compressed air before it enters the air reservoirs and valves, preventing internal corrosion and winter freezing of brake valves✓CTo blow warm air onto the front windshield wipers✓DTo dry the driver's clothing in rainy weather✓

QUESTION 19 / 25

What is the purpose of the Four-Circuit Protection Valve (Vierkreisschutzventil) in a heavy vehicle compressed air braking system?

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ATo distribute hydraulic fuel to four engine cylinders✓BTo control the four cabin speaker volume levels✓CTo ensure that if one brake circuit suffers a pressure drop or air leak, the remaining circuits (Circuit 1 rear, Circuit 2 front, Circuit 3 parking/trailer, Circuit 4 auxiliary) maintain operational safety pressure✓DTo switch between four different transmission speeds✓

QUESTION 20 / 25

What should a Category C driver do if the pneumatic-brake low-pressure warning remains active after starting?

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ARelease the spring brakes and depart slowly while pressure builds✓BSilence the warning and judge brake performance at the first downhill section✓CPump the service brake repeatedly to increase reservoir pressure✓DDo not move until the system reaches the manufacturer-approved operating range and the warning clears; investigate a warning that persists✓

QUESTION 21 / 25

How does the Spring-Loaded Parking Brake Cylinder (Federspeicherbremszylinder) function in a truck?

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AIt uses a heavy mechanical coil spring to apply the parking brake; compressed air pressure (Circuit 3) is required to overcome the spring and release the brake✓BIt requires continuous high hydraulic oil pressure to apply the brake✓CIt applies braking force only when the driver steps on the accelerator✓DIt works purely through magnetic attraction✓

QUESTION 22 / 25

If a heavy truck loses all pneumatic air pressure due to a catastrophic hose rupture while parked, what happens to the vehicle?

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AThe truck rolls away freely down the hill because there is no air to brake it✓BThe vehicle cannot be moved because the spring brakes (Federspeicher) lock the wheels mechanically; moving the vehicle requires emergency mechanical winding (Notlöseeinrichtung) or external air supply✓CThe engine automatically accelerates to maximum RPM✓DThe tires deflate instantly✓

QUESTION 23 / 25

What is the working principle of a Hydrodynamic Retarder (e.g. Voith or ZF Retarder)?

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AIt rubs two large wooden brake shoes against the drive shaft✓BIt sprays pressurized water onto the exhaust pipe✓CIt converts kinetic energy into heat by pumping oil between a spinning rotor (connected to the driveshaft) and a stationary stator, transferring the dissipated thermal energy to the vehicle cooling system✓DIt reverses the electric alternator current to spin the engine backwards✓

QUESTION 24 / 25

What critical caution must a truck driver exercise when using a powerful Retarder (continuous brake) on slippery, wet, or snow-covered roads?

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AThe retarder may only be used when the transmission is in reverse✓BThe retarder will extinguish the headlights✓CRetarders cause tires to freeze solid✓DBecause the retarder acts exclusively on the driven axle(s), excessive retarder braking torque on low-friction pavement can lock the drive wheels and cause an immediate jackknife or oversteer skid; reduce retarder stages or disengage on slippery surfaces✓

QUESTION 25 / 25

What is an Exhaust Throttle Valve (Auspuffklappe / Motorbremse / Engine Brake) and how does it generate braking torque?

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AIt closes a butterfly flap in the exhaust manifold, creating high backpressure against the ascending engine pistons during the exhaust stroke to decelerate engine RPM and vehicle speed✓BIt closes the fresh-air intake completely so the engine cylinders operate without airflow✓CIt blocks the air intake filter completely✓DIt applies the wheel service brakes through the ABS modulator without using the engine✓