Confusing ecological footprint, the total land and sea area needed to supply resources and absorb waste, with carbon footprint, which measures greenhouse gas emissions from fossil fuel use specifically.

State which one the question names before you answer. Ecological footprint is broader than carbon footprint, which is only one part of it.

Omitting the key process parameters in a steam reforming answer, such as the 700 to 1000 degrees Celsius temperature range and the 3 to 25 bar pressure range.

Learn the operating figures for each named industrial process on your paper and quote them rather than writing 'high temperature and pressure'.

Giving a final numerical answer in a U-value or heat flow calculation without stating the unit or showing the working that produced it.

Write the formula first, show every multiplication step, and finish with the unit attached to your answer, watts or W/m squared K.

Making generic environmental statements instead of naming the specific EU Directive that applies, such as the Landfill Directive or the Waste Framework Directive.

Attach a named piece of legislation to any statutory point you make on waste or emissions policy.

Confusing the anode and cathode half-reactions in a PEM fuel cell, or writing molecular equations instead of the required ionic half-equations.

Learn both half-reactions as ionic equations and check which electrode is which before you write, oxidation at the anode, reduction at the cathode.

Forgetting to subtract window or door area from the gross wall area before calculating total heat flow through a building's fabric.

Calculate net wall area first, gross area minus openings, and only then multiply by the U-value and temperature difference.

Treating phytoextraction and phytoremediation as interchangeable terms, rather than recognising phytoextraction's specific purpose of commercial metal recovery.

State the purpose alongside the term: phytoremediation decontaminates, phytoextraction specifically recovers metal for reuse.

Writing the QWC questions, 5(b), 7 and 9, as disjointed bullet points rather than structured paragraphs with specialist terminology, which caps the answer in the lower marking bands.

Plan each QWC answer as named paragraphs before you write, and use the correct technical term, biohydrometallurgy, anaerobic digestion, on first mention.

CCEA A-Level · เคล็ดลับการสอบ

Environmental Technology 3930 เคล็ดลับการสอบ

How the 100 marks of A2 Environmental Technology split across nine questions, why U-value calculations need full working and units, and the named directives and processes that separate top-band answers from generic ones.

อ่าน 3 นาทีอัปเดตเมื่อ: 3 ก.ย. 2569

ภาพรวมข้อสอบ

จำนวนฉบับ

คะแนนเต็ม

100

เวลาสอบ

2ชม.

ประเภทคำถาม

ฉบับ	เวลา	คะแนน	จำนวนข้อ	น้ำหนักคะแนน	ประเภทคำถาม
A2 1: Building and Managing a Sustainable Future	2ชม.	100	9	30%	Short answer and technical recall, Structured multi-point discussion, Calculation and formula application, Extended synoptic essay (QWC Level of Response)

เกณฑ์เกรด

A*ABCDEU

ข้อกำหนดเครื่องคิดเลข

Calculators are permitted and needed for this paper's heat flow and U-value calculations. The standard JCQ rule applies: no retrievable information stored in the calculator, including saved formulae, notes or programs. Clear your calculator's memory before the exam, show your formula and working on the page rather than relying on the calculator to carry it, and switch on exam mode if your calculator has one.

AO1: AO1: knowledge and understanding of environmental technology (28%)
AO2: AO2: the application of skills, knowledge and understanding through different contexts associated with environmental technology (36%)
AO3: AO3: the ability to investigate, analyse, evaluate, make reasoned judgements and communicate findings about issues in environmental technology (36%)

จัดทำจากข้อสอบเก่าและเกณฑ์การให้คะแนนจริง (2023–2025)

พร้อมทดสอบตัวเองหรือยัง?

เปลี่ยนบันทึกเหล่านี้เป็นข้อสอบจริง รับข้อสอบ AI ไม่จำกัด ตรวจให้ทันทีพร้อมคำอธิบาย

ฝึกทำหัวข้อนี้

โปรแกรมเครื่องคิดเลข

Live heat flow (U-value) calculation

วัตถุประสงค์: Get the heat flow in watts through a building element from its U-value, area and temperature difference, using the correct net area after subtracting windows or doors.

ใช้เมื่อใด: For U-value questions that ask for the heat flow through a wall or other building element.

ขั้นตอน

Calculate heat flow through a building element as one live sequence: U-value, times, area, times, temperature difference, equals, giving watts. Before you calculate wall heat flow, subtract any window or door area from the gross wall area, then use that net figure in the calculation.

ข้อควรระวังในการสอบ: Perform this calculation live from the figures given in the question, showing your formula and working on the page. CCEA and JCQ rules do not allow any formula, note or program to be stored in the calculator beforehand. Clear the memory before the exam and use exam mode if your calculator has one.

Live cost-per-unit comparison from a data table

วัตถุประสงค์: Get a cost-per-unit figure for each energy system in a comparison question, so the systems can be compared on a like-for-like basis rather than by raw totals.

ใช้เมื่อใด: For questions giving cost and output figures for two or more energy systems and asking you to compare them.

ขั้นตอน

When a question gives you cost and output figures for two or more energy systems and asks you to compare them, key each system's cost divided by its output as a separate live calculation, then compare the resulting figures directly rather than comparing the raw totals.

ข้อควรระวังในการสอบ: This is a live comparison performed on data printed in the exam paper. No figures, ratios or formulae from previous practice may be pre-stored in the calculator, which is not permitted under JCQ rules.

ข้อผิดพลาดที่พบบ่อย

1mediumคะแนนที่เกี่ยวข้อง: 2Sustainability and future development
Confusing ecological footprint, the total land and sea area needed to supply resources and absorb waste, with carbon footprint, which measures greenhouse gas emissions from fossil fuel use specifically.
วิธีหลีกเลี่ยง: State which one the question names before you answer. Ecological footprint is broader than carbon footprint, which is only one part of it.
2mediumคะแนนที่เกี่ยวข้อง: 2Hydrogen fuel cell opportunities
Omitting the key process parameters in a steam reforming answer, such as the 700 to 1000 degrees Celsius temperature range and the 3 to 25 bar pressure range.
วิธีหลีกเลี่ยง: Learn the operating figures for each named industrial process on your paper and quote them rather than writing 'high temperature and pressure'.
3highคะแนนที่เกี่ยวข้อง: 2Energy building performance
Giving a final numerical answer in a U-value or heat flow calculation without stating the unit or showing the working that produced it.
วิธีหลีกเลี่ยง: Write the formula first, show every multiplication step, and finish with the unit attached to your answer, watts or W/m squared K.
4mediumคะแนนที่เกี่ยวข้อง: 2Waste management
Making generic environmental statements instead of naming the specific EU Directive that applies, such as the Landfill Directive or the Waste Framework Directive.
วิธีหลีกเลี่ยง: Attach a named piece of legislation to any statutory point you make on waste or emissions policy.
5mediumคะแนนที่เกี่ยวข้อง: 3Hydrogen fuel cell opportunities
Confusing the anode and cathode half-reactions in a PEM fuel cell, or writing molecular equations instead of the required ionic half-equations.
วิธีหลีกเลี่ยง: Learn both half-reactions as ionic equations and check which electrode is which before you write, oxidation at the anode, reduction at the cathode.
6highคะแนนที่เกี่ยวข้อง: 2Energy building performance
Forgetting to subtract window or door area from the gross wall area before calculating total heat flow through a building's fabric.
วิธีหลีกเลี่ยง: Calculate net wall area first, gross area minus openings, and only then multiply by the U-value and temperature difference.
7mediumคะแนนที่เกี่ยวข้อง: 2Phytoremediation
Treating phytoextraction and phytoremediation as interchangeable terms, rather than recognising phytoextraction's specific purpose of commercial metal recovery.
วิธีหลีกเลี่ยง: State the purpose alongside the term: phytoremediation decontaminates, phytoextraction specifically recovers metal for reuse.
8highคะแนนที่เกี่ยวข้อง: 3Quality of written communication
Writing the QWC questions, 5(b), 7 and 9, as disjointed bullet points rather than structured paragraphs with specialist terminology, which caps the answer in the lower marking bands.
วิธีหลีกเลี่ยง: Plan each QWC answer as named paragraphs before you write, and use the correct technical term, biohydrometallurgy, anaerobic digestion, on first mention.

เปลี่ยนเคล็ดลับให้เป็นเกรดดีเยี่ยม

thinka เปลี่ยนจุดอ่อนของคุณเป็นแบบฝึกหัดที่ตรงจุด พร้อมตรวจทันทีและฟีดแบ็กแบบข้อสอบจริง เรียนอย่างชาญฉลาดขึ้น

เริ่มทำข้อสอบฟรี ดูราคา

ฝึกทำข้อสอบจริง พร้อม AI ตรวจคำตอบและให้ฟีดแบ็กทันที

เริ่มทำข้อสอบฟรี