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It’s always important to be honest in a job interview, but this question will make you think stretch the truth.  “Why do you want to change your current job?” These tips helps you to develop an answer to this question that will make them surely want to hire you. I will give you tips in 3 parts. Here are some possible answers adjust it for your situation. Part 1- Say something nice about your current job. It’s been a great experience, but… I’ve learned a great deal in my current job, but… I’ve enjoyed working with a great group of people, but… Part 2-Say something nice about this opportunity. This opportunity is very interesting to me, and fits very well with the direction I want to take my career. Growth is limited in my current employer’s organization because it is relatively small, so I need to look elsewhere, outside of the current organizaiton, and this opportunity looks very interesting to me because… I’m interested in working at [name ...

[accordion] [item title="In this article"] 1-Why AC rated in Tons? 2-How many kW and HP are there in 1 Ton? 3-How many Ampere will a 2 Tons AC draw in Single Phase & Three Phase System? 4-How many 2 Ton A.C (Air conditioner) can I run on a 25 kVA Generator [/item] [/accordion] 1-Why AC rated in Tons? Air conditioners(AC) are rated in Tons instead of using the kW unit. Just because of Air conditioners are designed on the basis of the quantity of heat removal from any specific area(office, classroom, hall). Quantity of heat is termed in Tons unit. If an air conditioner is able to remove 2000 kilocalories of heat (8240 kilojoules or 24000 BTU )of heat in an hour that AC rated as 2 Ton of AC. Also, this is the same for the refrigeration system. Definition of Ton: A Ton of refrigeration (RT) is a unit of power used to describe the heat extraction capacity of an air conditioner or refrigeration equipment. It is defined as the heat of fusion absorbed b...

Staircase wiring circuit diagram is very simple. In this given figure staircase wiring circuit diagram is given. By using this, we can control a bulb from two different places by using two, 2-way switches. Here, you can see that circuit is complete and the bulb is ON. Suppose you want to OFF the bulb from the top of the stair, simply switch OFF the switch which is at the top of the staircase. Now the circuit will break and the bulb will be OFF. You can switch ON to start the bulb again. In other words, you can OFF and ON the bulb from the upper switch at the top of stair or ground switch, below at stair. So let’s see how we can do that from that switch at the bottom of stair or top of the stair. As shown in diagram, the circuit is complete and bulb is ON. Now you want to OFF the bulb from the bottom switch at the stair. Simply OFF the switch, then the circuit will break and the bulb will be OFF. To turn on the bulb again simply start the switch again. For t...

Wiring a light switch: How to control each lamp by separately switch in parallel lighting circuit? In the real wiring system the switches are used to control the lamp separately. Here the diagram shows how we can control three Lamps separately. All these three Lamps are connected in parallel to each other. The switches are connected between lamps and phase wire. Point to be Noted: Switch is always connected to the phase wire not on neutral wire. The third Lamp is OFF just because the switch is OFF, so the circuit is not complete, and there is no way to flowing current, in other word this is an open circuit. The first and second lamps are ON, because the switches which are connected to the line are ON, so the circuit is  complete. Read Also: How to wire lamps in series and parallel with it's advantage and dis-advantage? How to control a lamp from two different places or staircase wiring installation? How to wire 1-phase and 3-phase kWh meter ? ...

Wiring Light switch: How to Control a Lamp by a Single Way or One-way Switch? This is the most basic circuit of Wiring Light switch, by which we can control a lamp by single way or one way switch. Key Point: Switch is always (only and only) connected on Line Or Live Or Phase. Not on Neutral wire. Read Also: How to control each lamp by separately switch in parallel lighting circuit? How to wire lamps in series and parallel with it's advantage and dis-advantage? How to control a lamp from two different places or staircase wiring installation? How to wire 1-phase and 3-phase kWh meter ? How to control One Lamp from three/six different places and working principle of intermediate switch?

The difference between the electronic and ordinary regulator is that in electronic regulator power losses are less because as we decrease the speed the electronic regulator gives the power needed for that particular speed.  But in the case of ordinary rheostat type regulator, the power wastage is same for every speed and no power is saved.  In electronic regulator, TRIAC is employed for speed control. by varying the firing angle speed is controlled but in rheostat control resistance is decreased by steps to achieve speed control. Read Also: Why AC rated in Tons? A Guide about Airconditioner and Refrigeration What is the difference between MCB & MCCB, where it can be used? Why in a three pin plug the earth pin is thicker and longer than the other pins? 4 most important questions for every electrical maintenance engineer Why ELCB cannot work if Neutral input of ELCB does not connect to ground?

If 200w, 100 w and 60 w lamps connected in series with 230V AC , which lamp glow brighter? Each lamp voltage rating is 230V. Each bulb when independently working will have currents (W/V= I) For 200 Watt Bulb current (I200) =200/230=0.8696 A For 100 Watt Bulb current (I100) =100/230=0.4348 A For 60 Watt Bulb current (I60) =60/230=0.2609 A Resistance of each bulb filament is (V/I = R) For 200 Watt Bulb R200= 230/0.8696= 264.5 ohms For 100 Watt Bulb R100= 230/0.4348 = 528.98 ohms and For 60 Watt Bulb R60= 230/0.2609=881.6 ohms respectively Now, when in series, current flowing in all bulbs will be same. The energy released will be I2R . Thus, light output will be highest where resistance is highest. Thus, 60 watt bulb will be brightest. It has highest resistance & minimum current requirement. Highest voltage drop across it X I [which is common for all lamps] =s highest power. Note to remember: Lowest power-...

1.) If one lamp connects between two phases it will glow or not? If the voltage between the two phases is equal to the lamp voltage then the lamp will glow. When the voltage difference is big it will damage the lamp and when the difference is smaller the lamp will glow depending on the type of lamp. 2.) Two bulbs of 100w and 40w respectively connected in series across a 230v supply which bulb will glow bright and why? The two bulbs are connected in series they will get an equal amount of electrical current but as the supply voltage is constant across the Bulb (P=V^2/R).So the resistance of 40W bulb is greater and the voltage across 40W is more (V=IR) so 40W bulb will glow brighter. 3.)  What happens if we give 220 volts dc supply to bulb or tube light? Bulbs or any other devices or equipment which are designed to operate on AC supply, such that it offers a high impedance to AC supply. Normally they have low resistance. When DC supply is applied, due to low re...

It depends upon R=ρL/A where area (A) is inversely proportional to resistance (R), so if the area (A) increases, resistance decreases & if resistance is less the leakage current will take low resistance path so the earth pin should be thicker.  It is longer because the first to make the connection and last to disconnect should be earth Pin. That assures the safety of the person who uses the electrical instrument.  Why AC rated in Tons? A Guide about Airconditioner and Refrigeration Why ELCB cannot work if Neutral input of ELCB does not connect to ground? What is the difference between MCB & MCCB, where it can be used? 4 most important questions for every electrical maintenance engineer Difference between an Electronic regulator and ordinary rheostat regulator

Most people are confused about the differences between MCB and MCCB. Although both are circuit breakers, there key differences makes them specially made for specific jobs.  MCB is miniature circuit breaker which is thermal operated and uses for short circuit protection in small current rating circuit. Normally it is used where the normal current is less than 100A.  MCCB moulded case circuit breaker and is thermal operated for overload current and magnetic operation for an instant trip in short circuit condition. Under voltage and under frequency may be inbuilt. Normally it is used where normal current is more than 100A. The main difference between the both circuit breakers is their capacity. The MCB is mainly used for low-energy requirements like home wiring or small electronic circuits and the MCCB is more suited in providing energy for high-power equipment. Key Differences:  An MCB has less than 100 amps while an MCCB goes as high as 2,500 amps. The...

Earth leakage circuit breaker (ELCB) is used to detect the earth leakage faults. If phase and neutral both are connected in an ELCB, the current will flow through the phase and that same current will have to return to neutral, so the resultant current is zero.  If a ground fault occurs on the load side, current from phase will directly pass through earth and it will not return through the neutral connection. That means one side current is going and another side not returning and hence because of this difference in current ELCB will trip and it will safeguard the other circuits from faulty loads.  If the neutral point is not grounded then fault current will be very high and that full fault current will come back through ELCB, and there will be no difference in current.  Read Also: Why AC rated in Tons? A Guide about Airconditioner and Refrigeration What is the difference between MCB & MCCB, where it can be used? Why in a three pin plug the earth pi...