Why the ceiling fan has three blades, why not two,four or five?

4 Answers  

---

what are the main components of fan?

2 Answers  

---

earth also having a gravitational force (magnetic field of north and south)but it attracts any object compare to this theartifical magnetic cant perform same as earth why?

0 Answers  

---

what is bus coupler? and how many type? which one is big advantage ?

2 Answers   Essar,

---

How to decide the size of the capacitor for a single phase induction motor say 2 HP ??

0 Answers  

---

What is the PIU.

1 Answers   Jindal,

---

what is the criteria for selecting fuse rating in 1phase, 2phase & 3phase welding sets?

0 Answers  

---

Why generally the transformer primary is connected in star & secondary in delta

7 Answers  

---

what is the actual difference betwen constructional details and constructional features?

2 Answers  

---

why aggregate is placed all around substation ground.

9 Answers  

---

In MEP Services what are parts of STP and what are there function?

0 Answers   Tenon,

---

Why does an induction generator is preffered as compared to synchronous generator in especially a wind energy power production project?

0 Answers  

---