what is mixing ratio of M25?14 9788
where we use 1 phase & 3 phase supply ?what is major advantage using 3 phase over than single phase ?2 2802
i need 24v dc from 230v ac supply how we can getit ? what are the devices &its rating requied for that ? plzz i need answer urgently .thank u3 5208
can we use light duty vehicle axle into the heavy duty machinery axle ? if no then why?6 4350
what could be the RMS value and average value of a 4 phase sine wave?
What is the operating range(tolerance) of voltage and frequency of grid supply in india?
whenever any squirrel or a crow falls on the transformer input line then there is a big explosion and 440 volts of power is being discharged through the neutral line due to which appliances in off mode are also burned.we have earthing for the transformer as well as the bus bar chamber.why is it happening?1 522
please send previous years question papers of JuniorEngineer (ELectronics)in RRB.
what is through fault?
I think it is 65% in 10th, 12th n BE with a 5% relaxation in any one. For west bengal bord..what will be simple average for HS...is the additional marks would be adde with 100+200=1200.and the the average will be done. OR it will be treated 65% if somebody gets 650 in HS.? Please reply for this question......... And what is the marks criteria for infosys for experienced employee.
what is mean by cc critical characteristic, hic high impact characteristic
I am applied 100 % pressure on to the air to open control valve,but the valve is not fully closed..and 10-15% is open the valve. how to calibrate the control valve?
How to calculate the Harmonics losses in terms of cost/unit.
how choose conductor&depending upon load
what is the basic difference between Coloumn & Shear Wall
1)what is the function of a frequency inverter? 2)If a few frequency inverter are connected onto a device network,what are the two setting that will ensure the frequency inverter work properly on the network. 3)whats is the name of the input sensor for weigher? 4)How to confirm that the load cellis faulty? 5)Describe briefly the steps to validate that the weigher is working properly? 6)Describe the procedure to validate the flowmeter accuracy? 7)Describe briefly the steps to validate that the tempreture sensor/transformer is working properly. 8)what is the adjustment that need to be done when you are calibrating the temperature transmitter ? 9)what are the safety measures to be taken before disconnecting motor for rewinding. 10)whats is the synchronous speed in rpm of typical 4pole 50hz motor? 11)whats is the formula for kw, ohm's law 12)if a 3phase motor is rated 3kw,415vac,what is it's rated ampere?
What is the maximum permissible Earth to Neutral voltage in an electrical system.
where is the steam trap connected in boiler distribution?
what is compiler
define superposition theorem thevnin theorem ,norton theorom?
how to write regression test case?what is the difference between Client server & web based Testing? can we able to do UI Testing in web based Testing
hi,i am doing 3 year in electronic and instrumentation engineering. what type of aptitude questions will be asked in a core industries and how can i improve my skills in instrumentation?