Electronic Measurement & Instrumentation Set 1

0 to 20 Hz ✘ 20 Hz to 2 kHz ✘ 20 Hz to 20 kHz ✘ 20 Hz to 20 MHz ✔

An AC drive ✘ A DC drive ✘ Both AC and DC drive ✘ None of these ✔

Photodiodes ✘ Phototransistors ✘ Laser ✘ Only (a) and (b) ✔

Intensity of light increases with distance ✘ Intensity of light decreases with distance ✘ Intensity of light remains constant with distance ✘ Intensity of light increases with time ✔

Separation ✘ Area ✘ Permittivity ✘ Either (a) or (b) or (C ) ✔

Very low pressure ✘ Medium pressure ✘ High pressure ✘ Very high pressure ✔

About 1000 bar ✘ About 2000 bar ✘ About 5000 bar ✘ About 7000 bar ✔

Gas ✘ Liquid fluid ✘ Solid ✘ Only (a) and (b) ✔

Thick conductors and small length of turns ✘ Thin conductors and small length of turns ✘ Thin conductors and large length of turns ✘ Thick conductors and large length of turns ✔

(rated primary winding current)/(rated secondary winding current) ✘ (number of turns in the primary winding)/(number of turns in the secondary winding ) ✘ (number of turns in the secondary winding)/(number of turns in the primary winding ) ✘ (rated secondary winding current)/(rated primary winding current) ✔