Answer / rajesh

blowers for blowing cooled air inside train
fan for exhaust hot air
compressor ( dc /induction motor ) for cooling liquid
refrigerant to gas phase

pump for assisting flow if exhaust is above toilet at roof
ckt breaker , switch panel for control
temperature , pressure sensor
lead acid battery in case of express train
etc

what is diffrent between plc and clc??

1 Answers  

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how many types method in earth testing?

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What is the required value while doing the megering

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what happenes if two voltage source connected in parallel will be connected to load.

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Find the netid and hostid for the following classful IP addresses? i) 117.34.3.8 ii) 132.57.8.6 iii) 207.3.54.12

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Can anyone tell me what will happen if AC & DC supply get mixed???

9 Answers  

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a room heater is connected in serise with a 100w bulb.if the 100w bulb is replaced by a 40w bulb then the output of the heater is increase/decrease/remain same?

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what are the reasons of CT circuit faulty in busbar protection scheme?

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In a large office how do we calculate required number of light fittings, assuming fittings are 4x18W or 2x36W fluorescent fitting ?

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List the characteristics of filter?

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What is the formula to calculate the no load current of a single & three phase induction motor

0 Answers   HCL, Nokia,

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I am interested to know what does 15 KVA DG set actually means? If I dont know the DG rating, is it possible to identify KW by simply knowing the diesel consumption?

0 Answers  

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