HCMT Gaps

Question 1

MR pressure

Answer 1

850 - 1000

Question 2

Emergency pressure

Answer 2

280 - 460

Question 3

Max brake pressure

Answer 3

250 - 380

Question 4

Holding brake pressure

Answer 4

140 - 240

Question 5

CB’s to disable a train

Answer 5

BETC
Brake control supply
Emergency brake loop power supply
Traction control
Cab activation

Question 6

What is in the auxiliary power supply container (3)

Answer 6

Auxiliary inverter
Medium voltage box
Battery charger

Question 7

What is in the high voltage box (2)

Answer 7

HSBC
Harmonic wave detection device

Question 8

What is in the VVVF cabinet (3)

Answer 8

Two traction motors
Traction control unit
Traction inverter

Question 9

What is in the ASU (3)

Answer 9

Main air compressor
Air dryers
Air filters

Question 10

5 cocks under the couple cover from left to right

Answer 10

Uncouple
Towing unit
BP end cock
MR end cock
Horn

Question 11

Where are the fire extinguishers located

Answer 11

Right of door 3
Mp car #7

Question 12

B06

Answer 12

Brake supply

Question 13

B07

Answer 13

Park brake

Question 14

Safety system isolate switches and button (7)

Answer 14

MR pressure switch
Traction interlock
Zero speed
Trip
Driver safety device
HCS
Get home

Question 15

When would you turn zero speed (3)

Answer 15

Fault in zero speed system
-operation of doors
-resetting safety loop
-stopping aid

Question 16

When would you use get home button

Answer 16

Pulse width module failure
Master controller issue and need to gain traction and braking

Question 17

What MR pressure will deenergise safety loop

Answer 17

600

Question 18

MR loss TC car (8)

Answer 18

Trip
Emergency
Friction brake
Holding brake
Horn
Air suspension
Driver and ojt seat
Sanders

Question 19

MR loss TC car what to iso (3)

Answer 19

MR
Trip
Compressor

Question 20

MR loss DMP (4)

Answer 20

Friction brakes
Park brakes
Air suspension
Sanders

Question 21

MR loss MP (7)

Answer 21

Friction brakes
Park brakes
Panto
Traction motors
Air suspension
Sanders
APS

Question 22

MR loss DT (4)

Answer 22

Friction brakes
Park brakes
Air suspension
Sanders

Question 23

MR loss isolated equipment MP, DMP, DT

Answer 23

Park brakes
MR

Question 24

If faulty door won’t close what can we do

Answer 24

Pull DER handle to stage 1
20 second wait
Pull to stage 2
Pull door shut
Return DER handle
Isolate door

Question 25

Procedure for locating faulty door

Answer 25

PA TEC Full cab Remove obstruction IF NO OBSTRUCTION DER handle to stage 1 20 seconds Stage 2 Close door manually Return DER Isolate door

Question 26

How to isolate door (6)

Answer 26

Tri key in isolation port Turn to isolate position Observe door button RED Push door button to confirm Stickers Book it

Question 27

What TMS alert on DER being pulled to stage 1

Answer 27

3

Question 28

When cab EAD pressed for 10 seconds how long has driver got to Inhibit and how long is it inhibited

Answer 28

10 seconds 5 minites

Question 29

Substandard beacon read

Answer 29

Train does not recognise some doors

Question 30

ASDC beacon read failure

Answer 30

Train does not recognise platform side

Question 31

Faulty door tms level alert

Answer 31

Level 2

Question 32

What cocks are in the BCM, what is the difference between cars?

Answer 32

TC - brake supply, brake cylinder 1, brake cylinder 2, tread scrubber, sander All other cars - park brake instead of tread scrub

Question 33

Purpose of high voltage box

Answer 33

Provide power to traction and auxiliary components

Question 34

What does medium voltage box do

Answer 34

Maintains the 415ac throughout the train