Digital Electronics N5 — Document

August 2019 — N5 — Digital Electronics

N5 2019 Nated Engineering

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🎯 100 marks ⏱️ 3h 📄 5 pages 📝 33 items found

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This section provides a quick preview of questions from the document. It may not display every question or the complete wording of each one. For the full content, including diagrams, tables and other information, view the original PDF above.

Q1— Section header —

1.1237,7 A,7 onvert the answer to octal

1.2

1.318

Q2— Section header —

2.1Draw the truth table. (11\

2.2Make use of Karnaugh maps to simplify. (8\

2.3Draw the circuit diagram. (6\ [25]25

Q3— Section header —

3.1Draw the circuit of an open collector TTL. C learly label the pull up resistor on the diagram.

3.2Name FIVE precaution when handling MOS. (5\ [11]11

Q4— Section header —

4.1digital analogue converter is such that a digital code may be fed into it serially. The following value s are related to this D/A converter. Input voltage = 2,8 V Time = 1,2

4.2Briefly expla in the operation of a staircase ramp analog digital converter. (5\ [13]13

Q5— Section header —

5.1Draw block diagram of a USART (10\

5.2Indicate whether the following statements are TRUE or FALSE . Choose the answer and write only 'True' or 'F alse' next to the question number (5.2

5.2.5\ in the ANSWER BOOK.

5.2.1UART consist of receiver, transmitter and CPU.

5.2.2The receiver converts parallel data to serial data.

5.2.3The transmitter converts serial data to parallel data.

5.2.4RAM using bipolar transistor technology is faster than those using MOS technology.

5.2.5Universal serial bus (USB\ is currently the most popular external storage device. (5 (5\ [15]15

Q6— Section header —

6.1Name THREE input or output devices. (3\

6.2Various options are given as possible answers to the following questions. Choose the answer and write only the letter (A D\ next to the question number (6.2.1

6.2.5\ in the AN SWER BOOK.

6.2.1

6.2.2The speed at which data is transferred from computer to a peripheral device such as a printer is called the baud rate access period address port

6.2.3

6.2.4Memory that can be read from or written to the central processing unit (CPU\ Read/write memory Address Band rate Access period

6.2.5A unique location in a computer memory that contain stored words (in binary\ Baud rate Access period Address Port (5 (5\

Q7— Section header —

Mark Allocation

Total100 marks

Sections18 + 25 + 11 + 13 + 15 + 8 + 10 = 100 marks

Paper information

TitleDocument

SubjectDigital Electronics

LevelN5

Document typeQuestion paper

Year2019

MonthAugust

Pages5

Downloads4

Examination context

Decade2010s

Years ago7y

SeasonWinter (SH)

Start dayThursday

Exam periodAugust 2019

Days since exam2,627

About Digital Electronics examination preparation

This TVET examination resource can be used as part of a structured revision programme. Past papers are most useful when learners attempt questions independently, work within a realistic time limit, and review their answers afterwards.

How to use this resource for revision

A TVET past examination paper is most useful when it is treated as an active revision exercise. Try the questions yourself before checking the corresponding memorandum. Where you make an error, identify the reason — was it a knowledge gap, a calculation mistake, an interpretation issue, or an examination technique problem?

For stronger examination practice, complete the paper without unnecessary interruptions and keep track of the questions that take the most time. Afterwards, review the memorandum and separate knowledge gaps from mistakes caused by interpretation, calculation, structure, or examination technique.

understanding question requirements

applying subject knowledge

working under time constraints

checking answers

identifying revision priorities

A practical revision approach

Start by completing the resource without looking at the memorandum. Review incorrect and incomplete answers afterwards and make a short revision list based on the areas that caused difficulty.

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