Renewable Energy Technologies NCV Level 3 — Document

November 2020 — NCV Level 3 — Renewable Energy Technologies

NCV Level 3 2020 NCV Engineering

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🎯 10 marks ⏱️ 3h 📄 6 pages 📝 39 items found 📚 3 topics

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1.1State THREE ways in which C emissions should be handled by energy efficient and energy demand management national programmes in

1.2State FOUR challenges of the NSWH rogramme (2010 2014\which led to the agreement between the Department of Energy (DoE\an d E

1.3Compare olar ater eating technologies to the use of

1.4State FIVE benefits of solar water heating systems to households and municipal ities. (5

1.5Indicate whether the following statements ar e TRUE or FALSE by writ ing only

1.5\in the ANSWER BOOK.

1.5.1Globally, South Africa is not a major contributor to reenh ouse as (GHG\missions.

1.5.2The NSWHP (2010 2014\ended to introduce olar ater eating

1.5.3One of the objectives of the NSWHP (2015 2019\ cre ation.

1.5.4Various stakeholders like TVET olleges introduced training interventions because solar water heating installations under the NSWHP (2010 2014\ere of poor quality.

1.5.5Standards are measurable criteria supporting the implement ation of regulations.

1.5.6

Q2— Section header —

2.1Define each of the following principles of energy conversion: .1.1 .1.2

2.1.3

2.2Answer the questions below regarding the installation of a solar water heating system on a roof. Information itched roof with a low roof slope 300 solar water heating s

2.2.1What general instructions regarding roof work must be followed before commencing with the installati on? (5\

2.2.2An inspection of the roof envelope shows that some of the critical components such as tiles are damaged. What would you recommend? (2\

2.2.3Adequate roof strengthening is required before installation. Explain how this wi ll be done. (5\

2.2.4How many hanger brackets does the system require? (1\

2.2.5Identify the type of assembly the roof requires. (1\

2.2.6State THREE ways to deal with shade caused by large trees surrounding the house (3\

2.2.7 Describe the mounting process of the solar water heating system on

Q3— Section header —

3.1.1Safety hazard

3.1.2

3.2Name TWO systems which could be used to prevent workers falling down heights. (2\

3.3Describe the setup of straight ladder (3\

3.4Name FOUR hazards common ly associated with working at he ights. (4\

3.5Name TWO roof type relative to working on solar water heating system s. (2\

Q4— Section header —

4.1COLUMN A COLUMN B .1

4.2State THREE functional features to co nsider when purchas ing

4.3Describe the working of an indirect (close loop\ thermosiphon. (3

4.4Make a neat line drawing of a typical direct fo rced circulation system and label any FIVE components

4.5What material is used to fabricate evacuated tubes for SWH systems? (2\

4.6What happen in the event of excessive scale build up in hot water supply

4.7Name THREE alternative type of assessment that should be done when planning work o n a SWH

4.8Give THREE minimum installation standards for SWH system (3

Topics Identified

Business EnvironmentsLeadershipBusiness Plan

Mark Allocation

Sections15 = 15 marks

Paper information

TitleDocument

SubjectRenewable Energy Technologies

LevelNCV Level 3

Document typeQuestion paper

Year2020

MonthNovember

Pages6

Downloads2

Examination context

Decade2020s

Years ago6y

SeasonSpring (SH)

Start daySunday

Exam periodNovember 2020

Days since exam2,172

About Renewable Energy Technologies examination preparation

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