Travel Trailer Towing Theory Test – Questions

Feb 8, 2021

Travel Trailer Towing Theory Test

Questions

Legal & Technical Items – Terminology; Ratings & Masses

1: What do the following abbreviations mean:

ATM:
(a) Average Travelling Mass
(b) Australian Testing Method
(c) Aggregate Trailer Mass

GTM:
(a) General Technical Manufacture
(b) Gross Trailer Mass
(c) Guaranteed Trailer Measurement

(Tow-Vehicle) GVM:
(a) Gross Vehicle Mass
(b) Generous Velocity Measurement
(c) German Vehicle Method

(Tow-Vehicle) GCM:
(a) Guaranteed Coupling Movement
(b) Grand Co-operative Management
(c) Gross Combination Mass

2: Are the above items “Actual Masses” or “Ratings”:

(a) Actual Masses
(b) Both
(c) Ratings

3: Are “Tare Mass” & “Ball-Loading “Actual Masses” or “Ratings”:

(a) Neither
(b) Ratings
(c) Actual Masses
(d) Both

4: The definition of “TARE MASS” for a Travel Trailer is:

(a) The load (force) on the coupling when the travel trailer is fully loaded
(b) The total permitted mass of the laden travel trailer transmitted to the ground by the travel trailer tyres, when carrying the maximum load recommended by the manufacturer, when coupled to a tow-vehicle. This Rating must not exceed the Axle-Group (wheels / tyres / suspension / axle) Rating stated by the chassis manufacturer
(c) The actual mass of the travel trailer with all OEM equipment and options fitted – as specified on the Sales Contract – as it leaves the Supplier, with empty water tanks and empty LPG cylinders, and without any luggage or personal effects. This is measured with the jockey-wheel and tyres on the weigh-bridge.

5: What does each element of a tyre designation mean (LT-P 225 / 85 R 16 90 Q):

LT:
(a) Low Temperature
(b) Light Truck
(c) Large Texture

P:
(a) Positive
(b) Pressurized
(c) Passenger (car)

225:
(a) Top Speed (225 mph)
(b) Tyre Diameter (“)
(c) Section Width (mm)

85:
(a) Minimum Speed (85 mph)
(b) Profile Ratio (%)
(c) Maximum Temp

R:
(a) Radial Construction
(b) Radical Construction
(c) Racing Tyre

16:
(a) Tread Width (cm)
(b) Rim Diameter (“)
(c) Inflation Pressure

90:
(a) Year of Manufacture
(b) Load Rating
(c) Manufacturer ID

Q:
(a) Speed Rating
(b) Queen’s Approval
(c) Quick Inflation

6: What is the standard size for a ball-coupling:

(a) 50 mm
(b) 2”
(c) 3 cm

7: What does ADR stand for:

(a) Alternative Driving Requirements
(b) Advanced Development Regime
(c) Australian Design Rule

8: What does AS stand for:

(a) Australian Standard
(b) Automotive Satisfaction
(c) African Substitution

9: Does the Tyre & Rim Association Manual give:

(a) The names of all companies who make tyres and rims
(b) The starting odds of all past winners of the Melbourne Cup
(c) The correct tyre/rim combinations, and the recommended inflation pressures for all tyre sizes, to suit the load carried by the tyre

10: Are fixed (non-swivel) 50 mm Ball-couplings suitable for medium / severe off-road use:

(a) Yes
(b) No
(c) Only in winter

11: Brakes are required on travel trailers:

(a) Only if the driver of the tow-vehicle is not very good
(b) Yes, on all travel trailers and camper/tent-trailers
(c) If the GTM Rating is above 750 kg

12: Break-away brakes are required:

(a) Only in winter
(b) If the GTM Rating is above 2,000 kg
(c) Only if driven faster than 120 km/h

13: ABS (on tow-vehicle) stands for:

(a) Automatic Braking System
(b) Australian Broadcasting Syndicate
(c) Anti-lock Braking System

14: If ABS is fitted to the tow-vehicle, will it also automatically work on the travel trailer:

(a) No
(b) Hopefully, if you are in trouble
(c) Yes

15: The Ball-Loading at any time:

(a) Is not important
(b) Should either be around 1%, or 30%, of the Tare Mass
(c) Should be around 10% of the travel trailer/trailer mass (if not otherwise advised by the manufacturer, in writing)

16: If the Ball-Loading is too LIGHT:

(a) You will go faster
(b) The travel trailer/trailer will most likely develop a most dangerous sway (snaking) situation
(c) The travel trailer/trailer will be harder to lift on and off the coupling

17: If the Ball-Loading is too HEAVY:

(a) You will be able to change the front tyres of the tow-vehicle without needing a jack
(b) Tyre wear will be reduced
(c) Handling, steering and safety will be dangerously impaired, and the tow-bar may fail off

18: Heavy items should be stored in the travel trailer:

(a) On the roof
(b) On the A-frame or rear bumper
(c) As close as possible to the axle(s)

19: If travel trailer tyre pressures are too LOW:

(a) The vehicle will be much lighter because there is not much air in the tyres
(b) The vehicle will sway and wallow, and the outer edges of the tread will wear out
(c) The vehicle will be much closer to the road, greatly reducing the air drag

20: If travel trailer tyre pressures are too HIGH:

(a) The vehicle will skip and bounce, and the centre of the tread will wear out
(b) The vehicle will not vibrate as much
(c) It will wreck tyre-pressure gauges, although a smooth ride is achieved

21: The travel trailer allowable / legal Pay-load (Load-carrying capacity) is:

(a) Whatever the driver thinks their tow-vehicle can handle OK
(b) ATM Rating – (minus) Tare Mass
(c) 50% of the GTM Rating + (plus) the Ball-loading

22: The left-side and right-side brakes should be:

(a) Regularly checked for wear, and adjusted evenly
(b) Must be greased on a daily basis when travelling
(c) As big as those on the tow-vehicle

23: The travel trailer lamps… Position, Stop, Turn-Signal, End Out-Line, Side:

(a) Operate best on 230 volts
(b) Need to be tapped moderately hard if they do not operate reliably
(c) Should be checked for correct operation before setting off on a trip

24: When towing a travel trailer, added or extended mirrors:

(a) Slow you down appreciably because of the very high air resistance
(b) Must be used so as to obtain a clear field-of-view along each side of the vehicle
(c) Should only be fitted when going “off-road” on dusty tracks

25: When towing a travel trailer, the time and distance needed to accelerate from 60 – 80 km/h (compared to just driving the tow-vehicle on its own) are:

(a) Hardly worth worrying about
(b) Appreciably much longer
(c) Around 10 seconds and 50 metres longer

26: When towing a travel trailer, the time and distance needed to slow down from 80 – 60 km/h (compared to just driving the tow-vehicle on its own) are:

(a) Around 5 seconds and 100 metres shorter, because of the additional brakes
(b) Again, hardly worth worrying about
(c) Appreciably much longer

27: When towing a travel trailer / trailer around a curve, you should:

(a) Speed up, so that the travel trailer will “drift” around the curve better
(b) Slow down, because of the additional centrifugal force, and risk of swaying
(c) “Cut the corner” (especially on rough roads) to increase the radius of the curve

28: Doubling your speed – say from 40 – 80 km/h – will:

(a) Improve the handling and braking performance of the travel trailer / trailer
(b) Increase the kinetic-energy – and braking distance – by a factor of 4 (four)
(c) Improve fuel economy (because the trip will take much less time)

29: If you see a B-Double approaching (from the front or rear), you should:

(a) Quickly give a friendly call to the driver on Channel 79
(b) Speed up, so as to quickly get the meeting / over-taking over and done with
(c) Slow down a little, and firmly hold the steering wheel in case a “sway” starts

30 If the travel trailer starts to “sway” or “snake”, you should:

(a) Hit the brakes as hard as possible
(b) Accelerate as hard as possible
(c) Don’t panic and don’t make any sudden / severe manoeuvres, but gently slow down, ensuring that you keep steering in the direction that you need to.

 

Once complete click here for answers

 


Test created by:
Colin G Young  [P.Eng.]
Member:  IEAust & SAE
(Honorary Manager & Professional Automotive Engineer)
Caravan Council of Australia
www.caravancouncil.com.au
caravancouncil@optusnet.com.au
Tel:  0409 865 399

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Explains in detail every aspect of tow vehicle and caravan stability. This is what you need to know to be safe on or off the road.

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The Caravan & Motorhome Book covers every conceivable aspect of campervan and motorhome usage. If you own a camper van or motor home, you'll want this book.

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Any bookshop, whether online or bricks and mortar, can order copies of The Caravan & Motorhome Book. Just ask.
ISBN: 978-0-6483190-5-4.

The Caravan & Motorhome Book

The Caravan & Motorhome Book covers every conceivable aspect of campervan and motorhome usage. If you own a camper van or motor home, you'll want this book.

eBook versions

Paperback version

The book retailers set their own prices which can vary substantially. We'll aim to keep a selection of the better prices above.

Any bookshop, whether online or bricks and mortar, can order copies of The Caravan & Motorhome Book. Just ask.
ISBN: 978-0-6483190-5-4.

Why Caravans Roll Over
and how to prevent it

Explains in detail every aspect of tow vehicle and caravan stability. This is what you need to know to be safe on or off the road.

eBook versions

Paperback version

The book retailers set their own prices which can vary substantially. We'll aim to keep a selection of the better prices above.

Any bookshop, whether online or bricks and mortar, can order copies of Why Caravans Roll Over.  Just ask.
ISBN: 978-0-6483190-6-1