Ultrasonic level gauge - Ultrasonic source is placed at bottom of vessel containing liquid

Q.  In ultrasonic level gauge, the ultrasonic source is placed at the
- Published on 10 Nov 15

a. Bottom of the vessel containing the liquid
b. Top of the vessel containing the liquid
c. Middle of the vessel containing the liquid
d. Far from the vessel containing the liquid

ANSWER: Bottom of the vessel containing the liquid

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