Ncv Electronics General — Memo
November 2023 — General — Ncv Electronics
General
2023
NCV Engineering
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Q1— Section header —
1.1010
Q2— Section header —
2.1Each magnetic flux line starts from north pole of a magnet and comes to the south pole through the field and continues from south pole to north pole in the body of the magnet. No two flux lines cross each other.
2.2(2\
2.3The current flow will decrease. Current flow in a circuit is inversely proportional to resistance. (2\
2.4Instructions to marker: The candidate must show the calculations as follows: Series Parallel 1/R = 1/R + 1/R I= V/R I = V/R
Q3— Section header —
3.1n electron within a conducting substance (as a metal\ but not permanently attached to any atom n electron moving in a vacuum (2\
3.2.1Air core Inductor
3.2.2Iron Core Inductor
3.2.3
3.3LED Light Emitting Diode emits light /gives off light Photodiode A photodiode functions when light is absorbed by the diode rough an external light source. (2\
3.3The crucial difference between Half Wave and Full Wave Rectifier is that a half wave rectifier converts only one half cycle of the Alternating Current (AC\ input supplied into pulsating Direct Current (DC\ signal.
Q4— Section header —
4.1Accident means an accident arising out of and in the course of an employee's employment and resulting in a personal injury, illne ss or the death of the employee (2\
4.2Earthing is used to protect us from an electric shock. This is achieved by providing an alternate path (a protective conductor\ for a fault current to flow to earth instead of passing through the human body.
4.3Faulty or damaged electrical appliances, Damaged or frayed cords or extension cables Electrical appliances in contact with water. Incorrect, damaged, or deteriorated household wiring Downed powerlines,
Q5— Section header —
5.1Ohms (2\
5.2(1\
5.3A multimeter determines capacitance by charging a capacitor with a known current measuring the resulting voltage, then calculating the capacitance. (3\ [6]6
Q6— Section header —
6.1Safety glasses or goggles Protective gloves Long sleeve shirts or lab coats Pants that are made of natural fibers (such as cotton\ Closed toed shoes or boots. Alternative suitable answers also to be considered.
6.2By placing it into a container marked as hazardous waste and then disposing of it as per the procedure of the company. If soldering at home, ensure you dispose of it at a centre which collects hazardous waste.
6.3A brass or steel brush is the most common method of scrubbing off oxidation, although for sensitive contacts nylon is preferred. You can also use a fast drying contact cleaner (2\
6.4Battery powered soldering iron (2\ [9]9
Q7— Section header —
7.1Single Pole, Single Throw Switch / SPST Switch Single Pole, Single Throw Switch / SPST Switch Resistor Globe Light (4\
7.2Gas Powered Soldering Irons (2\ L2
7.3You can wipe dirt and other particles from the outside casing with a good cleaning cloth. Compressed air is the best option to clean the particles from the tool's vents; cleaning your tool's exhaust vents with a brush could push the
7.4A job card is a detailed description of work (2\
7.5Eliminate fire hazards Prevent slips, trips and falls Avoid tracking materials Prevent falling objects Store materials properly Clear clutter in area Use and inspect personal protective equipment and tools
Q8— Section header —
8.1The base for the Decimal Number System is 10 A (input\ B (input\ C (input\ X (output\ a mark per correct row (4\ [6]6
Q9— Section header —
9.1A digital signal that senses or sends either ON or OFF signals. (2\
9.2Input field devices include switches, encoders, and transmitters for example. Typical output field devices are relays, lamps, and proportional valves. Normally Closed Contact Output Energize Output Latch
Q10— Section header —
10.1Modulation is the process of influencing data information on the carrier A file server is a computer responsible for the storage and management of data files so that other computers on the same network can access the files.
10.3Modulator demodulator (2\
10.4lass and plastic (2\ [10] TOTAL:10
Topics Identified
2
Forms of OwnershipLeadership
Mark Allocation
Sections10 + 14 + 9 + 10 + 6 + 9 + 13 + 6 + 13 + 10 = 100 marks
Paper information
TitleMemo
SubjectNcv Electronics
LevelGeneral
Document typeNCV Engineering
Year2023
MonthNovember
Pages6
Downloads2
Examination context
Decade2020s
Years ago3y
SeasonSpring (SH)
Start dayWednesday
Exam periodNovember 2023
Days since exam1,074
About Ncv Electronics examination preparation
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How to use this resource for revision
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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
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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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