SSC JE Electrical Engineering 25th May 2014 Shift-2
For the following questions answer them individually
SSC JE Electrical Engineering 25th May 2014 Shift-2 - Question 151
In a 3- phase induction motor crawling happens at
SSC JE Electrical Engineering 25th May 2014 Shift-2 - Question 152
A 4-pole, 3-phase induction motor runs at 1440 rpm on a 50 Hz supply. Find the slip speed
SSC JE Electrical Engineering 25th May 2014 Shift-2 - Question 153
Low voltage windings are splaced nearer to the core in the case of concentric windings because
SSC JE Electrical Engineering 25th May 2014 Shift-2 - Question 154
If K is the phase-to-phase voltage ratio, then the line-to-line voltage ratio in a 3-phase $$Y-\triangle$$ transformer is
SSC JE Electrical Engineering 25th May 2014 Shift-2 - Question 155
In an auto-transformer of voltage ratio $$\frac{V_{1}}{V_{2}},V_{1}>V_{2}$$, the fraction of power tranferred inductively is proportional to
SSC JE Electrical Engineering 25th May 2014 Shift-2 - Question 156
Stepped core is used in transformers in order to reduce
SSC JE Electrical Engineering 25th May 2014 Shift-2 - Question 157
Commutation conditions at full load for large DC machines can be efficiently checked by the
SSC JE Electrical Engineering 25th May 2014 Shift-2 - Question 158
The emf induced in a DC shunt generator is 230 V. The armature resistance is $$0.1Ω$$. If the armature current is 200 A, the terminal voltage will be
SSC JE Electrical Engineering 25th May 2014 Shift-2 - Question 159
The commutator of a DC generator acts as
SSC JE Electrical Engineering 25th May 2014 Shift-2 - Question 160
Fleming's left hand rule is applicable to
