Electrical Engineering (EE) Exam  >  Electrical Engineering (EE) Tests  >  Basic Electrical Technology  >  Test: Three-Phase AC Circuits - 1 - Electrical Engineering (EE) MCQ

Test: Three-Phase AC Circuits - 1 - Electrical Engineering (EE) MCQ


Test Description

5 Questions MCQ Test Basic Electrical Technology - Test: Three-Phase AC Circuits - 1

Test: Three-Phase AC Circuits - 1 for Electrical Engineering (EE) 2024 is part of Basic Electrical Technology preparation. The Test: Three-Phase AC Circuits - 1 questions and answers have been prepared according to the Electrical Engineering (EE) exam syllabus.The Test: Three-Phase AC Circuits - 1 MCQs are made for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Three-Phase AC Circuits - 1 below.
Solutions of Test: Three-Phase AC Circuits - 1 questions in English are available as part of our Basic Electrical Technology for Electrical Engineering (EE) & Test: Three-Phase AC Circuits - 1 solutions in Hindi for Basic Electrical Technology course. Download more important topics, notes, lectures and mock test series for Electrical Engineering (EE) Exam by signing up for free. Attempt Test: Three-Phase AC Circuits - 1 | 5 questions in 10 minutes | Mock test for Electrical Engineering (EE) preparation | Free important questions MCQ to study Basic Electrical Technology for Electrical Engineering (EE) Exam | Download free PDF with solutions
Test: Three-Phase AC Circuits - 1 - Question 1

For a polyphase system, the number of Wattmeter required to measure power is equal to _______

Detailed Solution for Test: Three-Phase AC Circuits - 1 - Question 1

The number of Wattmeter required to measure power in a polyphase system is determined using Blondell’s theorem. According to this, the number of Wattmeter required is equal to one less than the number of wires in the circuit. For example, in a three phase, four wire system (Star network), the number of Wattmeter required is three.

Test: Three-Phase AC Circuits - 1 - Question 2

 In a three phase, delta connection ______.

Detailed Solution for Test: Three-Phase AC Circuits - 1 - Question 2

A delta connected AC circuit is achieved by connecting the start end of a winding to the finish end of another winding such that all three windings form a mesh. Since each end of the windings forms the line connection, voltage across each winding is equal to the potential difference between the corresponding lines taken from that winding. Hence the phase voltage is equal to the line voltage.

1 Crore+ students have signed up on EduRev. Have you? Download the App
Test: Three-Phase AC Circuits - 1 - Question 3

A polyphase system is generated by______?

Detailed Solution for Test: Three-Phase AC Circuits - 1 - Question 3

A generator having two or more electrical windings which are separated by equal electrical angle generates a polyphase electrical system. The electrical angle or displacement depends upon the number of windings or phases. For example, in a three-phase electrical system, the generated voltages are separated from each other by 120° degrees.

Test: Three-Phase AC Circuits - 1 - Question 4

 An induction motor is ______.

Detailed Solution for Test: Three-Phase AC Circuits - 1 - Question 4

As the rotation of the rotor conductors are initiated normally due to the force produced because of interaction between induced current and rotor magnetic field, no external supply is required and the Induction motor is self-starting.

Test: Three-Phase AC Circuits - 1 - Question 5

For a polyphase system, the number of Wattmeter required to measure power is equal to _______.

Detailed Solution for Test: Three-Phase AC Circuits - 1 - Question 5

The number of Wattmeter required to measure power in a polyphase system is determined using Blondell’s theorem. According to this, the number of Wattmeter required is equal to one less than the number of wires in the circuit. For example, in a three phase, four wire system (Star network), the number of Wattmeter required is three.

57 docs|62 tests
Information about Test: Three-Phase AC Circuits - 1 Page
In this test you can find the Exam questions for Test: Three-Phase AC Circuits - 1 solved & explained in the simplest way possible. Besides giving Questions and answers for Test: Three-Phase AC Circuits - 1, EduRev gives you an ample number of Online tests for practice

Top Courses for Electrical Engineering (EE)

Download as PDF

Top Courses for Electrical Engineering (EE)