Explanation: The capacitor is a linear element. It only absorbs reactive power and stores it in the form of oscillating energy. The voltage and current are 90° in phase in case of the capacitor so the angle between V & I is 90°. P=VIcos90°= 0 W. Current leads the voltage in case of the capacitor.

Explanation: The capacitor is a linear element. It only absorbs reactive power and stores it in the form of oscillating energy. The voltage and current are 90° in phase in case of the capacitor so the angle between V & I is 90°. P=VIcos90° = 0 W.

Explanation: Load interrupter is used to avoid overloading conditions. It separates the under-stressed area from the line. It operates at full load.

Explanation: Current chopping is most severe in the case of Air blast circuit breaker. Resistance switching is used to avoid the problem of current chopping.

Explanation: Richard Trevithick built the first train in 1804. It was a steam locomotive train that used to carry 10 tonnes of iron from one place to another.

Explanation: Peterson coil or resonance grounding is used to suppress the capacitive effect. The frequency in resonance grounding is ω2 = 1÷(3LC).

Explanation: LLLG fault is the most severe type of fault. The order of severity is maximum for LLLG fault. LG fault is more severe at the generator terminals.

Explanation: The value of the area under a velocity-time graph is displacement. The velocity is the ratio of displacement and time.

Explanation: The value of the friction force is the product of the coefficient of friction and normal reaction. The correct value is F=μR.

Explanation: Lord Dalhousie is known as the father of the Indian Railways. The first railway line connecting Bombay with Thane was laid in 1853.