Answer / rajesh

it consist of a turbine impeller mounted on a shaft which is
connected to a miniature dc motor . as fluid passes through
turbine , it rotates and velocity of fluid is proportional
to turbine speed . hence if we connect a voltmeter we get
flow reading . it is ideally a active transducer , but since
all fluids have different parameters a small voltage is
applied to turbine , but principle is same

How can you calculate the size of the down conductor cable for the lightning protection system. Is 70mm2 cable can replace 95mm 2 bare copper cable when the copper tape size is 25Wx3 thk mm.

0 Answers  

---

From, which load current range ( upper - lower limit current)can Air circuit breaker used for in electrical circuit.

4 Answers   ABC,

---

why power factor is lagging and leading(i.e -1to +1)

2 Answers  

---

HI,how to know that the MEGGER which i am using is working properly,reply....thankyou

2 Answers   NTPC,

---

Master trip relay code no

2 Answers   TR,

---

There are 2 Flip_Flop with logic between them. Given Clock to Q delay, logic prop. delay, set up and hold times specify maximum clock frequency of system. What happens if second output fed back to first input. Any changes? What happens with timing if second output is fed back to logic between the flops? Good Luck!

1 Answers   Qualcomm,

---

what is the use of power factor ? where its applicable ?

4 Answers  

---

Sir I want questions for rrb sec technician gr III (electrical)

1 Answers   RRB,

---

why do we use star-delta starter. what is its need?

6 Answers  

---

What is the power factor of a transformer at no load?

0 Answers  

---

If any cable burnt how can we identify it burnt by high current of high voltage? 

0 Answers  

---

What is OLTC in a transformer, specify its fuction.

35 Answers   Bhel, Isgec, L&T,

---