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Home » School Boards » ISC Electricity and Electronics Semester 1 Exam 2021-2022: Check Syllabus, Specimen Paper, MCQs

ISC Electricity and Electronics Semester 1 Exam 2021-2022: Check Syllabus, Specimen Paper, MCQs

Students are required to attempt only five out of right questions from the PART 2 of the ISC Electricity and Electronics Semester 1 paper.

by Muhammad Fazil
December 13, 2021
in School Boards
Reading Time: 4 mins read
ISC Class 12 Electricity and Electronics

The Indian School Certificate Examinations (CISCE) will conduct the ISC Electricity and Electronics Semester 1 exam for 2021-2022 on December 14, 2021. The students preparing for the exam can access the syllabus, specimen papers, and MCQs from this article.

The exam is of a duration of 3 hours, and the total marks for the exam are 100. The question paper is divided into two parts. The students have to attempt all the questions in Part 1, and 5 questions out of the 8 questions in Part 2.

Syllabus

The exam will have questions from five units. Distribution of Electric Power, The D.C. generator and motor, The A.C. motor, Introduction to electronics, and Diodes.

  • From the Distribution of electric power, there are questions about the idea of a simple distribution system and on the making of a local power system.
  •  The D.C. generator and motor unit cover the use of split ring commutators; constructional features, shunt series, and compound field connections and their characteristics, starting of D.C. motors, and about back e.m.f.
  • The A.C. motor unit includes single-phase A.C. motors, rotating fields, methods of shunting, capacitance start, split-phase start, and single-phase induction motors.
  • Introduction to electronics includes the concept of electron flow, common components employed in electronic circuits, resistors, capacitors, and inductors, and their structure types and uses.
  • The unit Diodes have thermionic diodes, semiconductor diodes, and structure of vacuum diode and semiconductor diode.

The CISCE has released the sample papers for the ISC Electricity and Electronics Term 1 exam on the official website. The students can find sample papers from CISE and other educators for more sample question papers that will help them prepare better.

Direct Link to ISC Electricity and Electronics Semester 1 Specimen Paper

Important MCQs

Some important MCQs that would be helpful for the students are given below:

Question 1

With reference to a generator, in lap winding, the number of brushes is always:

(a) Double the number of poles.

(b) Same as the number of poles.

(c) Half the number of poles.

(d) Two.

Question 2

For starting a D.C. motor a ‘starter resistor’ is required because:

(a) It limits the speed of the motor.

(b) It limits the starting current to a safe value.

(c) It starts the motor.

(d) It limits the torque on the motor.

Question 3

In a ‘capacitor start’ motor, the phase displacement between starting and running windings can be near:

(a) 10°

(b) 30°

(c) 60°

(d) 90°

Question 4

Through which of the following systems can electric power be distributed?

(a) Overhead system.

(b) Underground system.

(c) Both (a) and (b).

(d) None of the above.

Question 5

Which of the following materials is not used for the distribution of electrical power?

(a) Copper

(b) Aluminium

(c) Steel

(d) Tungsten

Question 6

A semiconductor diode has:

(a) One p-n junction.

(b) Two p-n junctions.

(c) Three p-n junctions.

(d) Four p-n junctions.

Question 7

If the arrow of the crystal diode symbol is positive with reference to the bar, then the diode is ____ biased.

(a) Forward

(b) Reverse

(c) Either forward or reverse

(d) None of the above

The students can prepare well for the exam by solving the sample question papers. Students should note that solving the sample question papers alone will not help them in scoring good marks. They should cover the whole syllabus while going for the exam. Knowledge of the whole syllabus will give them an upper hand while writing the exam.

Tags: Board ExamBoard Exams 2021Class 12Class 12thISC
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