Interested to Buy Any Domain ? << Click Here >> for more details...
hi all,
can any one tell me a website or document on basic
interview questions on plc for a fresh diploma candidate?
- 1 Answers
- 3786 Views
- I also Faced
- E-Mail Answers
Answer Posted / thowsif_emerson
Hi go through this link,..
http://en.wikipedia.org/wiki/Programmable_logic_controller
| Is This Answer Correct ? | 0 Yes | 2 No |
Post New Answer View All Answers
All tape of electrical questions Answers tape of motor transformer e.o.t crane
THERMAL CAPACITANCE IS MEASURED IN..................................................
why starting current is high and resistance is almost 0 during the starting of motor dc motor...?
could you measure current in parallel?
1- XC and the RC time constant are both measures of the reaction of C to a change in ____? 2-The power factor is a numerical ratio with a value between 0 and 1 equal to the ______________ of the phase angle. 3-When V and I are out of phase because of reactance, the product of V times I is called ______________ power 4-For _____________ inductors, the branch currents can be added algebraically. 5- The ______________ power in watts can be calculated as I^2R 6-Calculate XL with L = 30mH and f = 1kHz ( I have Xl=2piFL 2*3.141592653*1kHz*30mH =188 ohms Please check) 7-A parallel RL circuit has the values, R = 5kohms, XL = 5kohms. A voltage source of Vt = 10Vrms is connected in parallel to R and L. Determine the total current, It delivered by the voltage source Vt. 8-A series RC circuit has R = 1Mohm and C = 1microF. How long would it take for the capacitor to fully discharge if it is initially fully charged? 9-A circuit has real power = 300W and an apparent power of 500VA. Determine the power factor and phase angle. 10-The time constant for an LR series circuit is T = 0.1s and R = 10ohms. Calculate the inductance L.
how to calculate cooling requirement of datacentre from electrical load?
we have provided 30 nos. relay contacts in panel.I want to know how do we do the numbering for the relay contacts as per any applicable standards
what is the affect of earth's magnetic field on the frequency used in aircraft???
what are the different methods for the starting of a synchronous motor.
What is magneto on a gas generator. how it functions. its out put is d.c or a.c. how it can be checked for correct functioning
how to maintain frenquncy with syncronising sub-station for distribution
STATE USE OF ARC RUNNERS & SPLITTERS ?
what is the physical connection of a analog i/p to a analog i/p module (ab plc)and through a analog o/p module(ab plc) to a analog o/p . and how all the process control by scada
What is the maximum and minimum rating of UPS?
there is an alternator 480 k.w, 400v,50hz, 4-wire running on load having leakage alternator body earthed current 38 A. is it within acceptable limit? if yes then give reference if no then how to bring within specified limit
