This page has every Power Machines N6 August paper we have, from 2018 to 2021: 3 question papers and 3 memos in 6 PDFs. The newest year is first. Each paper shows the first page of questions, its marks and time, and what the questions cover.
Power Machines N6 August papers by year
Power Machines N6 August 2021 question papers and memos
August 2021
Power Machines N6 August 2021 question paper
100 marks · 3 hours · 6 pages · 5 questions
What is in this paper (5 questions)
Q1
Gas at 190 °C expands adiabatically at a rate of 5 kg/s through a convergent-divergent 20 marks
Q2
A four-stroke, single-cylinder, internal combustion engine has a cylinder diameter of 20 marks
Q3
An open-circuit, continuous-combustion, constant-pressure gas turbine takes in air at 20 marks
Q4
The average diameter of the moving blades of a two-stage, velocity-compounded, 20 marks
Q5
A vapour compression refrigeration plant, using carbon dioxide as a refrigerant, operates 20 marks
Instructions to candidates Answer all the questions. Read all the questions carefully. Number the answers according to the numbering system used in this question paper. Questions may be answered in any order, but keep subsections of questions together. All sketches and diagrams must be neat, fully labelled and drawn in pencil in the ANSWER BOOK. Write down all formulae used. Show all intermediate steps for calculations. Use only a black or blue pen. Approximate final answers correctly to THREE decimals unless stated otherwise. Write neatly and legibly. (8190046) -3-
Power Machines N6 August 2019 question papers and memos
August 2019
Power Machines N6 August 2019 question paper
100 marks · 3 hours · 7 pages · 5 questions
What is in this paper (5 questions)
Q1
The following results were recorded during a test o n twoa-cylinder, four-stroke, oil 20 marks
Q2
A vapour compression refrigeration plant using carbon dioxide as a refrigerant operates 20 marks
Q3
Gas enters the first stage of a velocity compounded, tw-ostage impulse turbine at an 20 marks
Q4
During a test on a boiler plant, the following data was recorded: 20 marks
Q5
A gas expands through a converge-ntdivergent nozzle at a rate of 181 kg/min to an 20 marks
Instructions to candidates Answer ALL the questions. Read ALL the questions carefully. Number the answers according to the numbering system used in this question paper. Questions may be answered in any order; however, subsections of questions may not be separated. ALL sketches and diagrams must be neat, fully labelleda nd done in pencil in the ANSWER BOOK. ALL formulae used, must be written out in full. Show ALL intermediate steps for calculations. Use only BLUE or BLACK ink. Final answers must be approximated to THREE decimal places, unless stated otherwise. Write neatly and legibly. (8190046) -3-
Power Machines N6 August 2018 question papers and memos
August 2018
Power Machines N6 August 2018 question paper
100 marks · 3 hours · 9 pages · 7 questions
What is in this paper (7 questions)
Q1
A two-stage, single-acting, reciprocating air compressor rotates at 500 r/min and 20 marks
Q2
The nozzle velocity of a velocity-compounded, two-stage, impulse turbine consisting of 20 marks
Q3
A three-litre, six-cylinder, four-stroke petrol engine was tested on a rope brake and the 20 marks
Q4
A convergent-divergent nozzle expands air from a pressure of 800 kPa and a 20 marks
Q5
The following data was recorded during a test on a steam-boiler plant: 20 marks
Q6
A single-cylinder, four-stroke petrol engine operating on the Otto-cycle principle has a 20 marks
Q7
Ammonia is used as a refrigerant in a vapour-compression refrigerating plant which 20 marks
Instructions to candidates Answer any FIVE questions. Read ALL the questions carefully. Number the answers according to the numbering system used in this question paper. Answer questions in any order, but do NOT separate subsections of questions. ALL sketches and diagrams must be neat, fully labelled and be drawn in pencil in the ANSWER BOOK. Write down ALL formulae used. Show ALL intermediate steps for calculations. Answer questions in blue or black ink only. Approximate final answers correctly to THREE decimal places unless stated otherwise. Write neatly and legibly. (8190046) -3- T1400(E)(A7)T
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Questions about these papers
Which years of Power Machines N6 August papers are on this page? Papers from 2021, 2019, 2018. The newest year is at the top.
How many marks is the Power Machines N6 August paper? The paper is usually out of 100 marks and you get 3 hours to write it.
Are the memos included? Yes. 3 of the 3 papers on this page have their marking memo next to the question paper.
