Discussion
Match the following :
| List – I | List – II |
|---|---|
| a. 3½ digit | 1. Guarding/shielding |
| b. Pt – 100 | 2. Bridge |
| c. RTD | 3. Temperature |
| d. Interference | 4. DVM |
Codes : a b c d
Answer: B
A 3 and a half digit display is the format of a digital voltmeter, so a matches 4. Pt-100 is a platinum resistance sensor that measures temperature, so b matches 3. An RTD is read through a bridge circuit, so c matches 2. Interference is reduced by guarding and shielding, so d matches 1. The code is 4 3 2 1. The code 1 2 3 4 is the reverse, and 3 1 4 2 and 3 4 1 2 mismatch the first pair. The answer is 4 3 2 1.
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