Pneumatics And Brake

Question 1

MR operating pressure?

Answer 1

850 - 1000

Question 2

Emy BC pressure?

Answer 2

280-460

Question 3

Max BC pressure?

Answer 3

250-380

Question 4

Holding BC pressure?

Answer 4

140-240

Question 5

MR over-pressure safety valve?

Answer 5

1050

Question 6

MR safety loop activation pressure?

Answer 6

600

Question 7

Air pressures are plus or minus what?

Answer 7

20

Question 8

The Air Supply Unit (ASU) consists of what? (4)

Answer 8

Main air comp
Air dryers
Filters
Backup compressor governor

Question 9

Which car is the aux compressor on?

Answer 9

DMp

Question 10

When does the Aux compressor raise the pantos?

Answer 10

Not enough MR air or when a car has been isolated from the MR system

Question 11

Where are the Panto isolation cocks? (2)

Answer 11

Underframe and saloon

Question 12

Where are the saloon Panto isolating cocks?

Answer 12

B side of DMp and Mp cars in cabinet U12

Question 13

When does the post trip speed function activate?

Answer 13

Automatically after the trip has been activated

Question 14

What does the trip speed restriction do? And for how long?

Answer 14

Restricts the speed of the train to 25km for 500 seconds (8:20)

Question 15

How do you cancel the trip speed restriction?

Answer 15

Press the trip speed button

Question 16

Where are the tread scrubbers?

Answer 16

Wheels 3 and 4 of Tc

Question 17

What brakes are on a Tc? (3)

Answer 17

EP
Holding
Emy

Question 18

What brakes are on a DMp and Mp cars? (5)

Answer 18

EP
holding
Emy
Parking
ED

Question 19

What brakes are on a DT car? (4)

Answer 19

EP
Holding
Emy
Park

Question 20

Where are the EP friction brake isolating cocks? (3)

Answer 20

Saloon B06
BCM - bc iso cock
BCM - brake supply iso cock

Question 21

When does the holding brake apply?

Answer 21

Speed below 0.5

Question 22

Where are the park brake isolating cocks? (2)

Answer 22

Saloon B07
In the BCM