Questions 1-4 Q1. What does the red light in the growth rooms do?
Q2. What are initial growth rates shown to be?
Q3. What does the sea-vegetable market need?
Q4. What increasingly should lead to greater consumption of sea-vegetables?
MATCHING INFORMATION
Task: Matching the information given in the question with information found in one of the paragraphs in the passage.
Skills:
identifying specific information
scanning for information
Tips:
paraphrase the information in the question
find the information in the passage
answers do not come in order
the answer is often a letter (A, D, C, D...) - read instructions carefully to check
not all paragraphs may be used
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MATCHING INFORMATION
Mini warm-up practice test – Match information
Tough Sensor Can Take the Heat
A new gas sensor made from a nickel's worth of materials can endure high temperatures, corrosion, vibrations, and exposure to water, according to its inventors at Argonne National Laboratory in Illinois. The tiny sensor detects a variety of gases.
Conventional silicon sensors do not work well at temperatures above 150°F. But Argonne's new sensor, made of ceramics and metals, is not affected by high temperatures. "The materials in this sensor behave well through a wide range of temperatures," says Michael Vogt, a control systems engineer at Argonne.
Vogt and his colleagues made the sensor by film screening layers of ceramic and metal on a ceramic substrate, then firing the sensor in an industrial oven at more than 1,000°C. The Argonne researchers set out to build a sensor that would detect overheating computer components. Before an
overheating component fails, and possibly ignites, epoxy in the circuit boards release a gas. The Argonne sensor can detect this vapour and cut off power to the circuit.
The device senses gases by applying a steadily increasing voltage across its electrical leads and monitoring current spikes induced as gases react on the sensor's surface. Each gas reacts at a characteristic voltage, and the size of the current spike indicates the "signature" of several representative organic solvents.
The sensor could be used to monitor hydrocarbon emissions from cars; today's typical sensors can only measure oxygen. The sensor could also monitor gases in industrial chemical processes.
Questions 1-4
The passage contains five paragraphs, A-E.
Which paragraph contains the following information?
Write the correct letter, A-E
Q1. How the device senses gases .................
Q2. Where the new gas sensor was created .................
Q3. Other uses of the new gas sensor .................
Q4. How the device was designed .................
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