In Swinburne's Test on D.C.machines, why the efficiency is more when the machine runs as generator than when it runs as motor???

6 Answers   College School Exams Tests, GE, MVR, Practical Viva Questions,

---

what is the use of piston rings in the engine used for a generator...........

0 Answers  

---

what are the standard transmision voltages in india?

9 Answers   Adani,

---

tate and explain super position theorem

2 Answers  

---

what is use of reactive power in ac ckt.

2 Answers  

---

---

megger generates D.C. voltage while earth tester generates A.C.voltage is it true? I know for megger it is D.C generator but what about earth tester?

4 Answers   IOCL,

---

what do you mean by plant earthing system.

0 Answers  

---

what will be the neutral to earth voltage while checking by the Digital multimete? and why?

1 Answers  

---

critical losses of transformer

3 Answers   EEEC,

---

Given a ckt,the max power dissipated in the load ZL ?

1 Answers  

---

Define non-touching loop.

0 Answers  

---

why we use 25 kv in railway .not 11kv, or 33 kv

2 Answers   ISRO,

---