Chemical Plant Operation N5 — Document

November 2022 — N5 — Chemical Plant Operation

N5 2022 Nated Engineering

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🎯 100 marks ⏱️ 3h 📄 5 pages 📝 35 items found

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Q1— Section header —

1.1Energy possessed because of movement (velocity\f matter.

1.2A turbine in which the energy is received from an external source.

1.3A material of necessity inert or unreactive which passes through a system from a single input stream to a single output stream and remains completely unchanged during the process.

1.4The reaction from SO to SO

1.5A mixer for light powders such as insecticides. (5 1\ [5]5

Q2— Section header —

2.5\in the ANSWER BOOK. COLUMN A COLUMN B

2.5Energy due to motion Mixer for heavy, stiff or gummy materials It is a lso called a double naben blade Can be use d in food processing industries

Q3— Section header —

3.1Define the following:

3.1.1Standard heat of formation

3.1.2The gram mole

3.1.3

3.2Name TWO types of steam turbine (2\

3.3The analysis of the waste gas from a burner fuelled with natural gas (essential ly pure CH is as follows: 75 mol%; O

Q4— Section header —

4.1Sketch closed gas turbine and discuss it under the following headings. (7\

4.1.1Advantage (1\

4.1.2Disadvantages (2\

4.2Write brief explanatory notes on an impulse reaction turbine. (4\

4.3Give FIVE procedures of solving material balance. (5 1\ (5\

4.4Describe a burner burning with a blue flame. (1\ [20]20

Q5— Section header —

5.1.1Sketch a nozzle discharge centrifuge. (7\

Q5— Section header —

5.2Describe the operation of the following:

5.2.1Two arm kneader (5\

5.2.2Centrifugal decanters (5\

5.3Name THREE types of blade used in two arm kneader. (3\ [25] 805001525

Q6— Section header —

6.1Draw a flowchart of the salt process for manufacturing of hydrochloric acid and give description of the process. (15\

6.2State THREE raw material used for the manufacture of nitric acid. (3\

6.3List FIVE uses of nitric acid (5\

6.4Complete the following reaction: 4NH + 3O (2\ [25] TOTAL: 10025

Mark Allocation

Total100 marks

Sections5 + 5 + 20 + 20 + 25 + 25 = 100 marks

Paper information

TitleDocument

SubjectChemical Plant Operation

LevelN5

Document typeQuestion paper

Year2022

MonthNovember

Pages9

Downloads5

Examination context

Decade2020s

Years ago4y

SeasonSpring (SH)

Start dayTuesday

Exam periodNovember 2022

Days since exam1,438

About Chemical Plant Operation 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

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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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working under time constraints

checking answers

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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.

File details

File size1.02 MB

Pages9

Archived on8 September 2026

File age45d

ContributorFreeMode

FingerprintBC72E62893CE

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