PGCET EE Question Paper 2010 With Answer.
PGCET EE (Electrical and Electronics Engineering) Question Paper 2010 With Answers Solution Free Download PGCET Post Graduation Common Entrance Test M.Tech Admission in EE 2010 Question Paper, This PGCET EE 2010 Question will help all the students for their exam preparation, here the question type is MCQ i.e multiple choice question answers, if this PGCET EE 2010 question paper in pdf file for PGCET EE you can download it in FREE, if PGCET EE 2010 paper in text for PGCET EE you can download PGCET EE 2010 page also just Go to menu bar, Click on File->then Save.
The efficiency of a power transformer is around
(a) 50% (b) 60% (c) 80% (d) 95%
If rated dc voltage is applied instead of ac to the primary of a transformer
(a) secondary of transformer will burn (b) primary of transformer will burn
(c) secondary voltage will be excessively high.(d) there will be no secondary voltage.
If the applied voltage of a certain transformer is increased by 50% and the frequency is reduced to
50% (assuming that the magnetic circuit remains unsaturated), the maximum core flux density will
(a) change to three times the original value (b) change to 1.5 times the original value
(c) change to 0.5 times the original value (d) remain the same as the original value.
Core loss in a transformer is usually
(a) I % to 3% (b) 10% to 15% (c) 25% to 30% (d) 40% to 50%
Tn a synchronous machine, if the field flux axis is ahead of the armature field axis in the direction
of the rotation, the operating machine is a
(a) synchronous motor (b) synchronous generator
(c) asynchronous motor (d) asynchronous generator
Variation in dc excitation of a synchronous motor causes variation in
(a) speed of motor (b) power factor
(c) armature current (d) both (b) and (c).