ADI/PDI Jargon Buster (2)



The art of conveying meaning by an interchange of ideas or experience Good communication skills are a must for a driving instructor. Communication can be defined as: the ability to impart knowledge and ideas to cause a change in behavior or attitude.



Continuing Professional Development


Creep & Peep

Using clutch control to creep forward to get a better view at a junction where the view is restricted.



Check test report


Disabilities and the Driving test 

When applying for a driving test, anything that may have an effect on the running of the test must be declared on the application form. For example this could be that the candidate is deaf or has difficulty walking into the Driving Test Centre. This allows the examiner to prepare, if necessary, for any changes to the usual procedure followed. More time can be allocated if required or arrangements made to meet the candidate in the car park if wheelchair access is a problem. Apart from these procedural differences, a disabled person will take exactly the same test as everyone else and the same criteria for passing will be applied. All of the other rules regarding people accompanying or acting as interpreter remain the same, as does the requirement to remove any dual accelerator. Should a candidate pass the test using a specially adapted vehicle, the examiner will note the adaptations on the Pass Certificate (D10). This information does not appear on the driver's licence. The number and type of adaptations available are considerable, items such as: · Steering ball for one-handed operation of the steering wheel. · Hand operated (push pull T-bar) brake and accelerator Left side accelerator pedal · · Infrared remote control, usually mounted on the same bracket as the steering ball, for indicators, wipers, lights and horn. · Extra mirrors, essential if the driver is unable to take a direct observation through the rear window when reversing. The vehicle may also be adapted in certain ways. Power steering can be made ultra light and brake pedal effort considerably reduced. Manual gearbox cars can be adapted to semi-automatic mode so that gears are still changed using a gear lever but do not require the operation of the clutch pedal by the driver.



Driving test report form


Practical test application form


Dual (divided-line) braking system

All modern cars are fitted with a dual or divided-line braking system. By having a second, completely separate hydraulic brake line and master cylinder, the likelihood of complete brake failure is vastly reduced should a loss of brake fluid occurs in part of the system. Because of the way the system is divided, one front wheel and its diagonally opposite rear wheel can still be used to stop the vehicle. This can also mean the driver has to apply increased brake pedal pressure to bring the car to a stop.


Driver & Vehicle Licensing Agency - responsible for regulating driving licences.



Driving vehicle & Standards Agency - responsible for regulating the ADI register and L tests.




Explain, Demonstrate, practice - Teaching technique to help work from the simple to the complex.


Explanation, Demonstration, Practice.

Teaching Method A skill must first be explained verbally, then an example shown, possibly by demonstration, and finally practice to assess if understanding has been achieved. Note that the demonstration does not necessarily mean you actually doing it; often the use of diagrams or other material will be sufficient. I hear and I forget; I see and I remember; I do and I understand



External Any outside influence on a pupil's ability to pay attention - such as traffic flow, noise, weather conditions etc.



An exchange between the pupil and instructor for the latter to ascertain as to whether satisfactory understanding and progress is taking place, best carried out throughout the lesson and summarized at the end of a period of training.


Four-stroke engine cycle

Induction - compression - ignition/power - exhaust. This is the basic cycle that your engine goes through to provide the power needed to turn the wheels. 1. Induction – This is when the mixture of air and fuel is sucked into the cylinder through the inlet valves2. Compression – The mixture of air and fuel is squeezed to make it provide a bigger bang3. Ignition – this is when the fuel is ignited to create the bang which then forces the cylinder down to create the power needed to turn the wheels4. Exhaust – the gases created by the burning of the fuel are pushed out through the outlet valves and the cycle begins again. In simple terms you could remember this as: SUCK – SQUEEZE – BANG – BLOW


Four-wheel drive

It may sound obvious but on a two-wheel drive system the power or drive is only transferred directly from the engine to two wheels. This is either the two front wheels - “front wheel drive” or the two rear wheels - “rear wheel drive” The main advantage of having four-wheel drive is the increased traction, or grip, particularly on loose or slippery surfaces. Because the improved grip reduces the possibility of a vehicle's wheel sliding in some circumstances, it can also be stated that the main advantage of four-wheel drive is improved road holding.



Acceleration as in "more gas" or "less gas" or "gas pedal"



Learning by understanding. (Pre-knowledge - new knowledge - insight) Once a pupil is familiar with the basic principles of driving he must learn to apply them himself in a number of different situations. Only if he understands the meaning of what he has been taught is this possible.


Hold back position

Used for the point at which you wait when giving priority to an oncoming vehicle.


Holding Point

The point at which the clutch plates will hold the car still – on an uphill slope for example.


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