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SSC JE Electrical 2019 with solution SET-2
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Identify the correct statement regarding a nuclear power plant?

In nuclear power plant the graphite is used as a moderator. The job of the moderator is to absorb some of the kinetic energy of the neutrons to slow them down. This is because slow neutrons are more easily absorbed by uranium-235. A neutron slowed In this way can start the fission process.

SSC JE Electrical 2019 with solution SET-2
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Which of the following comes under the category of single-phase commutator motors?

The commutator is a feature of d.c.motors. But a.c. motors having wound rotor with brushes and commutator arrangements, are called commutator motors that work on single-phase a.c. supply. The commutator arrangement present in these motors is similar to the armature of a d.c. motor.E.g. of single-phase commutator type induction motor is

Repulsion Motor

Repulsion-Induction Motor

AC Series Motor

Universal Motor

SSC JE Electrical 2019 with solution SET-2
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If ‘V’ is the voltage phasor and ‘I’ is the current phasor, then VI represents

Apparent Power (S): It is defined as the product of r.m.s value of voltage (V) and current (1). It is denoted by S.**S = V/I Volt Ampere**

SSC JE Electrical 2019 with solution SET-2
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The number of valence electrons of P and Si are respectively?

Phosphorus (P) has 15 electron i.e 2,8,5. Hence the number of electron in its outermost orbit is 5.

Silicon (Si) has 14 electron i.e 2,8,4. Hence the number of electrons in its outermost orbit is 4.