Revision Cab Equipment

Question 1

When might the LP flag raise (3 answers)

Answer 1

Main reservoir is below safe level 500kpa
Brake cable isolating cock and switch is closed
EP brake is inoperative due to failure or isolation of the power supply to Lock Out Magnet Valve

Question 2

What is the purpose of the couple button

Answer 2

It couple up two 3 cars by de-energises the self centring device

Question 3

What would be the effect of turning the compressor contractor to off

Answer 3

It turns on or off the air compressor on the motor car it’s located on

Question 4

What does the break pipe test switch do when it is ON and the bell button is pressed

Answer 4

It’s use to activate a brake pipe reduction to test the operation of the brake
Bell button is pressed to do the test

Question 5

What gauges are located on the drivers dash

Answer 5

Brake cylinder- shows air pressure in brake cylinder
Duplex gauge- red pressure in main res
- white air pressure in brake pipe
Speedo
Ammeter- electrical current to the traction motors during powering and rheostatic braking

Question 6

When is the control governor by-pass butto used and times

Answer 6

After the Red EC isolating cock has been turned the control governor by- pass button will begin to flash.
After 30 sec it will flash and need to press in 10 sec

Question 7

Which light on the fault/status panel will illuminate to indicate that 110 vDC is available

Answer 7

Supply light

Question 8

Which light would illuminated on the fault/ status panel to indicate to the driver that a fault has occurred on the local car

Answer 8

This Car light

Question 9

How many air cons have failed in a car if the AC fault light is flashing

Answer 9

2 have failed in one carriage

Question 10

If the Local and/or line switch light are illuminated, what equipment has fault

Answer 10

Overload tripped within traction equipment.
Fault within the power supply to the traction motors or line breaker case

Question 11

What are the positions of the market lights (4 answers)

Answer 11

Auto
Red
White
Center cab

Question 12

Under normal stabling conditions, for how long will the stabling light flash for after lowering the pantos

Answer 12

15 mins

Question 13

What are the 3 electrical isolate toggle switches located on the right-hand wall of the driver dash for

Answer 13

Panto isolate
Rheo Brake isolate
Auxiliary isolate

Question 14

Should the LSM switch be in the ON or OFF position

Answer 14

On

Question 15

What equipment could be defective that would mean you would turn the LSM to off (4 answers)

Answer 15

Pantos will not raise or remain raised
Motor alternator will not start
Pantos will lower for no reason
EP circuit breaker trips continually

Question 16

What isolates are in the footwell of the drivers seat (3answers)

Answer 16

Uncouple isolate cock
Whistle/horn isolate cock
VICERS whistle isolate cock ( blue)

Question 17

What does the BVICs control the flow of (4 answers)

Answer 17

• Main reservoir air to the automatic air brake valves and into the Brake pip through the brake controller
• Electric current to EP and rheo brake controller
• Electric current to low pressure flag and lock out magnet valve
• Electric current to the door monitoring circuit for blue door closing lights