Stations, train working & block systems — questions with answers

Q1.Under the Following Trains System, the number of following trains running at the same time between two block stations shall be ______

1. not more than one per 5 km of station interval, and never more than four
2. not more than one per 2 km of station interval, and never more than six
3. not more than one per 10 km of station interval, and never more than two
4. not more than one per 8 km of station interval, and never more than three

Q2.In the Automatic Block System, the normal aspect of an automatic signal is ______

1. Danger (red)
2. Proceed (green)
3. Caution (yellow)
4. Attention (double yellow)

Q3.During total interruption of communication on a single line section, what is sent to the affected station, with Form T/B 602, to establish communication and enquire about Line Clear?

1. A motor trolley
2. A material train
3. A light engine
4. A push trolley

Q4.Under the Absolute Block System, Line Clear may not be given for a train at a Class 'A' station unless the reception line is clear for at least ______ beyond the Home signal (or up to the Starter).

1. 180 metres
2. 400 metres
3. 120 metres
4. 1000 metres

Q5.Before temporary single line working is started on a double line, the fitness of the unaffected line must be declared by an Engineering official not below the rank of ______

1. Inspector
2. Mate
3. Keyman
4. Assistant Divisional Engineer

Q6.The One Train Only System of working may be used only on ______

1. double line suburban sections
2. short terminal branches on single line
3. ghat sections with steep gradients
4. any section during total failure of communication

Q7.Under the Following Trains System, a train shall not follow another from a station until at least ______ has elapsed since the previous train departed, unless special instructions fix a shorter interval.

1. 5 minutes
2. 10 minutes
3. 30 minutes
4. 15 minutes

Q8.On the Absolute Block System, the authority to proceed for a Loco Pilot to enter the block section is ______

1. the clear aspect of the Distant signal
2. the clear aspect of the Home signal
3. the clear aspect of the Last Stop signal, or a written authority from the Station Master on duty
4. a verbal permission from the Guard

Q9.Why was the time division method of train working given up?

1. It needed too many block instruments
2. A train sent after the fixed interval could collide with a preceding train that had broken down in the section
3. It could not be used on double lines
4. It required automatic signals every kilometre

Q10.At which class of block station may Line Clear be given for a train before the line has been cleared for its reception within the station section?

1. Class 'A'
2. Class 'C'
3. Class 'B'
4. Class 'D'

Q11.A non-block (Class 'D') station is ______

1. a block station having only one loop line
2. a block hut controlling an automatic section
3. a terminal station with a single platform
4. a stopping place between two consecutive block stations that does not form the boundary of any block section