Answer / amit

commutator is a device used in generator for reversing the
flow of the current where as carbon brushes is used to
conduct electricity between stationary wires and moving parts

will stress be induced in a material if it expands freely???

3 Answers   Bhel, HAL, TCS,

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What is meant by parallel flow heat exchanger?

0 Answers  

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Classification of bunkers?

0 Answers   RRB,

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can we say all tapered pipes as nozzle?

8 Answers  

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What is coaxing ?

0 Answers  

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Out of electric heater and heat pump, which is economical in operation ?

0 Answers  

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Where use 6 stroke engine

1 Answers   John Energy,

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What is the purpose of piston rings?

2 Answers   RRB,

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In a 4 cycle engine the intake valve begins to open at?

2 Answers  

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please sent last five years junior engineer mechnical question pappers

0 Answers  

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asked about the power transimmisions and types of power drives and about milling different process types and differnce between straddle milling and gang milling

0 Answers   HAL,

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Preparation before arriving port?

0 Answers   RRB,

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