how current is reverse from its normal direction during the fault?

2517

---

The sodium vapor lamp is not glows when it is connected a distance of 5 meters above from gearbox, why ?

3730

---

What is overhauling and record kelping? What is the prosecute of dismantling and assembling?

2899

---

Difference between Synthetic foaming agents V/S Protien based foaming agent?

2624

---

The company where I am working, their is rosemount 5400 series radar type level transmitter, it is meant to show level of filled tank, but along with the level it is showing temperature also, so my question is how a onon-contact type radar type level transmitter can show temperature even if it does not have any contact with the fluid?

2334

---

How does a single acting, spring return ball valve actually work? Does it require continuous air supply? 

2198

---

What is the difference between conductive lined pipe and conductive unlined pipe? Why do we see that?

3233

---

Why does a pressure gauge installed on reactor, doesn't have any vent line below to release the pressure? Is it any kind of designing mistake or it actually does not require any vent line? And if it does not require any vent line below it then how we are gonna release the pressure built inside the pressure gauge?

2218

---

Is it ok, to use non-contact type Radar type LT, on a tank that is half circular from the bottom side? If yes the, isn't the waves gonna bent in other directions? 

2231

---

What is shielding effect?

2302

---

What is heating effect?

2419

---

What are continuances of connecting earthing and shield of branch cables (instrument to Junction box), at the same earthing pot provided on JB? Is it ok, or may produce some problem? 

2540

---

Why do we have earthing cable in branch cable and shield in the same cable?

2665

---

what is the meaning of impedance protected in instrument cooling fan

3634

---

if 6 earth pit value is 1.5 ohm then what should be the number of earth pit to make the value .8 ohm

2335

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