01 - DCPMs

Question 1

What does DCPM stand for?

Answer 1

Dual Control Point machine

Question 2

To opperate DCPM you must have authority from?

Answer 2

Controlling Signaller or Train Control.

Question 3

Name the TWO levers on a DCPM

Answer 3

1. Selector Lever (small one)

2. Hand Throw Lever (Big one)

Question 4

DCPM style point machines are found more often on which safe working system?

Answer 4

ATC

Question 5

What are the two options you can choose when operating the Selector Lever?

Answer 5

1. Hand operation

2. Motor operation

Question 6

What is the purpose of the motor operation?

I don’t know if we need to know this

Answer 6

To provide the Signaller remote access of the points and signals, as well as preventing manual operation of points.

Question 7

What are the two options of the Hand Throw Leaver?

Answer 7

Normal Position (main line)
Reverse Position (diverging)

Question 8

When the DCPM is placed in Hand position, what aspect will the signal show?

Answer 8

Stop

Question 9

When are point clips used?

Who are permitted to use them?
Jimmy is unsure if we need to know this

Answer 9

• They are used when facing movements are required over the points when detection of the points is not visible.
• Signallers, Signal Maintenance Technicians and Signalling Specialist officers.

Question 10

Sequence for Hand Throw Lever Option

Answer 10

When points are lying in Normal position.
Normal: N>R>N
Reverse: N>R>N>R

When points are lying in the reverse position.
Normal: R>N>R>N
Reverse: R>N>R