| Skip Navigation LinksHome > Question view

Question Answer

► MCQ Exam ON : Transformers

A single-phase, 2,200/200 V transformer takes 1 A at the HT side or no load at a power factor of 0.385 lagging. The iron losses are

1)		77 W
2)		167 W
3)		98 W
4)		88 W
5)		NULL

Complaint Here As Incorrect Question / Answer

Important MCQ on Related Subject

📌	A transformer is connected to a constant voltage source. If the supply frequency decreases, the magnetic flux in the core will

📌	If a load on secondary side of a transformer increases, the current on the primary side

📌	Circular coil sections are used because they

📌	The core flux in a transformer depends mainly on

📌	A transformer 2,000 kVA, 250 Hz is operated at 50 Hz. Its kVA rating should be revised to

📌	Grain-oriented laminated sheet steel in a transformer reduces

📌	A 220V, 150V bulb is connected in series with the primary of a 220/1,100 V, 50 Hz transformer. If the load on the secondary side is disconnected, the brightness of the bulb will

📌	The voltage regulation of a transformer at full-load 0.8 power factor lag is 6 per cent. Its voltage regulation at full-load 0.8 power factor lead will be

📌	The primary winding of a power transformer should always be

📌	In a certain loaded transformer, the secondary voltage is one-fourth the primary voltage. The secondary current is

📌	A certain transformer has 400 turns in the primary winding and 2,000 turns in the secondary winding. The turns ratio is

📌	In the circuit model of a transformer, the core loss is represented as

📌	In a transformer, the exciting current will be in phase quadrature with the impressed voltage provided

📌	To step 120 V ac up to 900 V ac, the turns ratio must be

📌	A 10 kVA, 400/200 V sinlge-phase transformer with 10 per cent impedance draws a steady short circuit line current of

📌	Magnetizing impedance of a transformer is determined by

📌	What is the coefficient of coupling for a transformer in which 4% of the total flux generated in the primary does not pass through the secondary?

📌	A single-phase induction regulator is a constant input transformer to obtain smooth variation of the output voltage by varying the

📌	Routine efficiency of a transformer depends upon the value of

📌	A transformer is to be tested at full-load conditions consuming only losses from the mains. We do

📌	In performing open circuit test of a transformer

📌	The open circuit All-day efficiency of a transformer is

📌	In operating a 400 Hz transformer at 50 Hz

📌	If 90 per cent of normal voltage and 90 per cent of normal frequency are applied to a transformer, the per cent charge in hysteresis losses will be

📌	The primary winding of a transformer has 110 V ac across it. What is the secondary voltage if the turns ratio is 8?

📌	The transformer which will have the largest size is

📌	While performing short circuit test on a transformer, the impressed voltage magnitude is kept constant but the frequency is increased. The short circuit current will

📌	In a certain transformer, the input power to the primary is 120 W. If 8.5 W are lost to the winding resistance, what is the output power to the load, neglecting any other issues?

📌	The efficiency of a transformer is usually in the range of

📌	The flux involved in the emf equation of a transformer has

Online GK

General Knowledge Multiple choice GK Questions MCQ on current affairs quiz

Get General Knowledge Multiple choice GK Questions MCQ on current affairs quiz, All GK based Exams mcq quiz and also examine your ability for SSC, Banking, IAS, UPSC, CLAT, IBPS Competitive Examinations, online general knowledge preparation, College Level Quiz, Medical, Engineering, MBA BBA

Online GK Give Online General Knowledge Test for All Exam GK. Each of the below online tests consists of ten multiple choice objective type questions with answers. In the tests, simply select one of the answer choices. Your answer will be marked immediately by indicating or . Also, the correct answer will be highlighted in green colour.

mcq quiz multiple choice questions test for gk based exams, educational questions with answer MCQ GK explaination. Here Get Study of All GK for Competition Exam. We provide fully solved Online General Knowledge Quiz preparation. you can learn and practice Online free. solve General Knowledge Multiple choice GK Quiz online, Study and Tips general knowledge mcq. General Knowledge Multiple choice GK Questions MCQ on current affairs quiz.

Managed Services By: www.upscgk.com