Question

Which of these are application of metal detector?

• A. Inspection of people in entrace of malls, airports and stations.
• B. Food processing industry uses for detection of metals in food.
• C. Detection of precious metals.
• D. Detection of clay artifacts buried underground.

Answer 1

Answer: (A), (B), (C)

The correct options are
A Inspection of people in entrace of malls, airports and stations.
B Food processing industry uses for detection of metals in food.
C Detection of precious metals.

A metal detector detects metal by inducing magnetic field in them and in return the receiver picks up that magnetic field while indicating the presence of it. Metal detectors are used for screening purpose in malls, airports and stations. In food processing industry, they are used to detect presence of excess metal within the edible products. Metal detectors are also used for finding precious metals buried in earth. Detection of clay artifacts is not possible.