5. Specialist Reading: How does Fingerprint Scanning Work

If you listened carefully to the recording in the listening task in the previous section, you know that Bob selected capacitive fingerprint scanning. But way? Well, he probably had two reasons. First, he found some interesting facts on fingerprints. If you scan the text on p. 116 and complete this task, you will have the same data. You must be pretty quick because there is a time limit of minutes set.  In addition, Bob has found some technical facts and explanations on the scanner. Before you read the same text as Bob, look at some useful electrical vocabulary. Just match words to the components in this vocabulary task. Then read a text about fingerprint scanning and do this quiz. To complete this task, you will need to look at diagrams on p. 56 in your coursebook (Bonamy, D. (2011). Technical English Level 3 Coursebook. Pearson Longman).