MCQ's of Power Systems
01. Which of the following protects a cable against mechanical injury ? 1 point (a) Bedding (b) Sheath (c) Armouring (d) No…
01. Which of the following protects a cable against mechanical injury ? 1 point (a) Bedding (b) Sheath (c) Armouring (d) No…
01. In order to reduce skin effect at UHF Conductors are painted Conductors are anodised Copper tubes with silver plating ar…
01. Length of the cable is doubled, its capacitance C will be one-fourth. one-half. doubled . unchanged. 02. Tarapur nuclear…
1. Which of the following component is usually fabricated out of silicon steel ? (a) Bearings (b) Shaft (c) Stator core (d) …
1. Synchronous motors are generally not self-starting because (a) the direction of rotation is not fixed (b) the direction o…
01. The inverse of capacitance is called 1 point reluctance. conductance. susceptance. elastance. 02. In a capacitor the el…
01. A sine wave has a frequency of 50 Hz. Its angular frequency is _______radian/second. 100 Ï€ 50 Ï€ 25 Ï€ 5 Ï€ 02. The form f…
01. A measuring system consists of Sensors Variable conversion elements Signal processing elements All of these 02. An instr…
01. No load test of 3-phase induction motor used to determine Variable loss Constant loss Eddy current loss only Hysteresis …
1. The armature of D.C. generator is laminated to (a) reduce the bulk (b) provide the bulk (c) insulate the core (d) reduce …
01. Synchronous motor for power factor correction operates at No load with over-excited fields No load with under-excited …
01. Which of the following can measure the resistance having the value below 1 Ohm most precisely? Kelvin’s Double Bridge Me…
01. In a split phase motor, the running winding should have High resistance and low inductance High resistance and High indu…