Automatic Block Signalling

In an automatic block system, what is the primary mechanism for controlling train movement?

What critical condition must be met before an automatic signal assumes an 'OFF' position?

What is the minimum adequate distance required beyond the next stop signal for an automatic signal to assume an 'OFF' position, if the next signal is manual or semi-automatic?

Under what condition is the speed of a train required to be regulated based on signal spacing?

What is the primary difference between a manual stop signal and a semi-automatic stop signal?

In an automatic block system on a single line, what is essential before the direction of traffic can be established?

According to GR 9.03 for single lines with automatic block systems, what is the minimum adequate distance the line must be clear beyond the first stop signal before 'Line Clear' can be obtained?

What is the primary purpose of providing a control to establish the direction of traffic on a single line with automatic stop signals?

Why are DC track circuits discouraged in block sections for future installations?

What specific design feature is required for axle counters between two adjacent stations to manage equipment failure effectively?

What is the key identifying feature of an Automatic Stop Signal, as described in the content?

Under what specific condition should the 'A' marker light be illuminated on a signal interlocked with a level crossing?

What is the maximum gradient on which Automatic Signalling should be installed without special considerations?

What is the fail-safe principle that applies to all circuits for auto signals?

If a signal, which should display a red aspect, fails to do so, what action must the signal in rear take?

Under typical operating conditions for automatic block signalling, what is the minimum adequate distance, in meters, required beyond the next stop signal for an automatic signal to display an 'OFF' position if the subsequent stop signal is also automatic?

For an automatic signal to display an 'OFF' aspect when the next signal in advance is a manual or semi-automatic stop signal, the line must be clear for an adequate distance beyond it. What is the minimum value, in meters, for this adequate distance?

Automatic Signalling should not be installed on sections with heavy and continuous falling gradients steeper than a certain ratio. What is the maximum steepness ratio (1 in X) allowed for installing automatic signalling without special considerations?

In the context of Electronic Interlocking (EI) and Object Controllers (OCs) for automatic signalling, how many Object Controllers (OCs) are typically provided in each Auto Goomty (AG) to manage automatic signals in both directions?

For path diversity in communication media between Auto Goomty (AG) and Station in an automatic signalling system, how many 24 fibre Optical Fibre Cables (OFCs) are typically provided for both UP and DOWN directions combined?

In the described Automatic Signalling Scheme, Channel A of OC No. 24 at Station B is connected to Station A CIU using how many fibers within a 24 core fiber cable in the UP direction?

Within the Electronic Interlocking (EI) architecture described for automatic signaling, an EI system typically provides for a certain number of ports. How many ports are provided in the EI architecture, each capable of connecting with 4 OCs?

MSDAC (Multi Section Digital Axle Counter) systems are designed to operate within a specific voltage range. What is the upper limit of the DC voltage range (in Volts) within which MSDAC is designed to function?

For Automatic Signals at AG (Auto Goomty), a specific size of signaling cable is used for direct feeding without a repeater relay, up to a certain maximum distance. What is the cross-sectional area in Sq.mm of each conductor in the 12 core signaling cable used?

What is the maximum distance in meters for direct feeding of Automatic Signals at AG using a 12 x 1.5 Sq.mm signaling cable, beyond which a repeater relay might be required?

In the context of MSDAC evaluator cabling, how many conductors are required in one quad cable for connecting each Detection Point (DP)?

For each Detection Point (DP) of dual detection MSDAC, a separate 6 quad cable is used. How many individual conductors are present in one such 6 quad cable?

What is the minimum 'adequate distance' specified in meters, applicable to clauses (d) and (f) of sub-rule (1) in GR 9.03, unless directed otherwise by approved special instructions, regarding Automatic Block System on single line?

In the context of track sections and supervisory track sections, how many track sections are typically covered by each supervisory track section for automatically resetting the track sections?

Which statement about Automatic Block Systems on double/single lines is incorrect?

Which of the following statement about manual stop signals is incorrect?

Which statement regarding Semi-Automatic Stop Signals is incorrect?

Regarding Automatic Block Systems on a single line, which statement is incorrect?

Concerning the establishment of traffic direction for Automatic Stop Signals on a single line, which statement is incorrect?

Regarding Train Detection for Automatic Signalling, which statement is incorrect?

Which of the following statements concerning Axle Counters in Automatic Block Systems is incorrect?

Regarding Automatic Stop Signals markers, which statement is incorrect?

Regarding Automatic Signalling in graded sections, which statement is incorrect?

Regarding circuit features for Auto Signals, which statement is incorrect?

Concerning the maintenance of Automatic Signalling sections, which statement is incorrect?

Under Modified Semi-Automatic Signalling, which of the following statement is incorrect?

Regarding the Automatic Signalling Scheme using OFC, MSDAC & OC, which statement is incorrect?

Concerning Electronic Interlocking (EI) and Object Controllers (OCs) in Automatic Signalling, which statement is incorrect?

In the context of MSDACs with Dual Detection, which statement is incorrect?