I want to apply for ONGC recruitment 2012 .I am BE Electrical but it is mentioned that to apply for this post you have to have Electrical supervisor certificate .so please tell me from where can i get such certificate ???

1 Answers  

---

what will happen if ac motor given dc supply?

1 Answers  

---

Thumb rule of cable size(rm>30 rm)X multiplying factor=ampere

0 Answers   Kazi Farms, SKI Carbon Black,

---

How do i right a ladder diagram that has 1 actuator that performs a full stroke followed by a half stroke

0 Answers   Tata Motors,

---

why we use capacitor in lighting fixer

2 Answers  

---

---

what is transformer

7 Answers   Hofincons,

---

What is electrical earthing?

1 Answers  

---

The control system is used for?

3 Answers   CCP, NTPC,

---

what is the diffrantial relay???????why we use it on the MDB

5 Answers  

---

My load is 1635 KW. & current pf is 0.884, I have to improve it for 0.99.Please suggest what KVAR value is needed?

0 Answers  

---

what are the main parts of UPS what is the function of that?

23 Answers   Apollo, HCL, Liebert, Royal Furnishers, Tech Mahindra,

---

what are the types of control systems to control the speed of the motor??

1 Answers  

---