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q what do you mean by distressingdistressing is the operation under taken with or with out rail tensors to secure stress free condition in the lwr at
q what is long welded raillong welded rail is a welded rail the central part of which dose not under go any longitudinal movement due to temperature
q explain the process of directed track maintenancedtm is a method to maintain the track is directed every day and not as a prescribed routine dtm
q what is unimat machinethe machine has got 16 independently tiltable tamping tools which enable the machine to work on points and crossing as well
q what is portal cranesthe portal crane is a hydraulically driven four wheeled machine and is meant for carrying sleepers or track panels the power
q what is objective method of assessmenttrack recording consists of objective method of assessment of the quality of track with the help of
q illustrate weld failures in trackthese are failures occurring to defects in welding the joint these defects are either because of improper
q explain flash butt weldingin this process the ends of two rails are kept at fixed distance apart and a mould designed to suit the rail section is
q a crossover is to be laid between two parallel b g tracks at 4725 m centers by using 52 kg 1 in 8frac12 and 1 in 12 turnouts for this
check rail on curve - check rails are basically provided on sharp curves to reduce the lateral wear on the outer rail they also prevent the outer
raised check rails for obtuse crossingin order to provide guided path way in throat portion of 1 in 8 12 bg obtuse diamond crossing the check rails
q explain gauge conversionall the advanced countries of the world have recognized the need for uniformity of gauge there are a number of problems
q what is rail lubricators1p amp m type of lubricators - these lubricators can be used for lubrication of ff rails as well as bh rails2elgi grease
lubrication of rail joints is one of the important items of permanent way works incidental to systematic track maintenance the lubrication of joints
q what is rail lubricationrail lubrication is done on sharp curves where lateral wear is considerable the function of rail lubrication is to
a hydro stressor consists essentially of a hydraulic pump which transmits its force through connecting vans to clamps which grips the rail in case of
q what is chamfering of railchamfering of rail holes has been done for the life of rail hole is increased and chances of the rail hole developing any
q draw a neat dimensioned cross-sectional sketches of a -inew single line bg track in a cutting on a mainline routeiinew double line b g track on a
q write short notes on the following a points to be kept in mind while collecting water samples for testing from tap stream amp twell separatelyb
q what is rapid sand filtera rapid sand filter is a water treatment plant that includes provision for pre treating the water by coagulation and
q what is activated sludge processthe term activated sludge is used to indicate the sludge which is obtained by settling sewage in presence of
q what is sedimentation tank this is a process in which the water is passed through bases or tanks in which the velocity of water is so reduced or
q there is a colony having 15 blocks of type - ii quarters each block having 8 quarters make out a diagram of distribution pipelines from an overhead
q write short notes on pressure filter for drinking water supplywhat are pressure filters and what are its advantages disadvantages over the normal
q design a water supply scheme for new railway colony based on the following datasirequirement of loco and domestic consumption 5 lacs gallon per