1. which type of transformer connection is preferred in
case of power supply transformers?
(A) Star/Star
(B) Delta/Delta
(C) Star/Delta
(D) Zig Zag/Star
2. In a power transformer usuall which winding is closer to
the core?
(A) Primary winding
(B) Secondary winding
(C) Low Voltage winding
(D) High Voltage winding
3. The power factor of a purely inductive load is
(A) Zero
(B) Lagging
(C) Leading
(D) Unity.
Answer Posted / gaurav agarwal
1. star/delta
2. secondary winding
| Is This Answer Correct ? | 3 Yes | 2 No |
Post New Answer View All Answers
If a rotary UPS is in line through grid power; What would be the impact on Power Factor if the load through rotary ups is 25% , 50% , 75% & 100%. Will the power factor reduce with less load?
I am going to appear RRB Sr. Section Engineer Exam, Electrical. Can you send me previous year questions of RRB Electrical engineer. specially Section Engineer questions. my email id is likerahulworld@gmail.com
what is the VA(Volt-amphere)? define with calculation?
how to i get B licence,i am completed BE electircal and electronics engineering.i want to konw the proceduure to get b licence
why we use 630mm single core cable for transformer secondary side and why two neutral cable
What was the Dg set radiator and lube oil temperatures trip in ACB
What is the criteria for selecting the voltage classes of an AC Induction Motor.The KW rating above/below which ht/lt selection is made may be provided in details.
Define de-sensitivity?
According to underground cables a) stress b/w sheath & conductor is high b) inrush of core & conductor
How do apply electrical 'c'license......pls advice
what are the differences between 'exhaust fan', 'heavy-duty exhaust fan' & 'super heavy duty exhaust fan'. what are their power ratings ?
what is the transiant condition in alternator? and how it can be prevanted?
11 kv input, 66 kv input advantages
why Induction Generators are not "Black start" ? and apart from WTGs where this types of generator are generally used?
What is corkscrew rule?