In ultrasonic level gauge, the ultrasonic source is placed at the – McqOptions

MCQOPTIONS

1.	In ultrasonic level gauge, the ultrasonic source is placed at the
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» B. top of the vessel containing the liquid

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