Question Paper – Apo ( Assistant Personnel Officer) of 28-04-2007

07-06-2022

Question Paper - Apo ( Assistant Personnel Officer) of 28-04-2007   Click Above or See Below PDF Indian Railway Question

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I’ve heard that some locos have ‘cruise control’. What does this mean?
June 20, 2019

Some locomotive classes such as the WAP-5 and WAP-7, as well as the WAG-9, have controls in the cab that can 'lock' the train to travel at a certain speed (the speed at the time the control or button is set). The button is known as the 'BPCS' button. The computerized loco controls then manage the tractive effort and braking effort and attempt to

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Why do trains sometimes feel like they are momentarily rolling backwards (or forwards) just after coming to a halt?
June 20, 2019

Today, almost all braking of trains moving at speed is done using the train brake system which activates (air) brakes along the length of the entire rake. The loco brake system is not used for bringing the train to a halt. However, as soon as the train comes to a halt, most drivers switch immediately to the loco brake system to hold the train at a

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Where can I find locomotives from India that have been preserved or restored outside India?
June 20, 2019

Where can I find locomotives from India that have been preserved or restored outside India? During the World Wars, many Indian locomotives were transferred to the middle East, Africa, and elsewhere to support British military efforts. Most of these locomotives of course do not survive now and may be difficult to trace. Details of these wartime

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What’s the cause of the characteristic jerk or momentary loss of power felt when a WDM–2 accelerates?
June 20, 2019

The WDM-2 loco, like most diesel-electric locos, has several configurations of its traction motors that are used as the loco accelerates from rest (Series Parallel - Series Parallel Shunt - Parallel - Parallel Shunt, and weak field configurations). There are three important transitions: At 30.8-39km/h 2S-3P Full Field to 2S-3P Weak Field, at

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Where can I find plinthed or preserved locos in India?
June 20, 2019

Where can I find plinthed or preserved locos in India? Some information is provided below. Also see the locomotive lists which detail steam survivors in south Asia, preserved locos in Sri Lanka, etc., and also the industrial loco list which has information on many preserved locomotives in India and other south Asian countries. The page on steam

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What’s the method that IR uses to couple together multiple locos? or, What’s ‘Locotrol’?
June 20, 2019

Two to four or so locos can usually be coupled together to operate automatically, without any special provisions, with the crew manning only one of them. (This mode of operation is known as ‘Multiple Unit’ operation, or ‘MU’.) Using more than about 4 or 5 locos together without some form of automatic control for them is problematic

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