BASIC INSTRUMENTATION CH.9 Flashcards
FLOW MEASUREMENT IS THE PROCESS OF DETERMINING THE QUANTITY OF FLUID THAT PASSES A PARTICULAR POINT IN A GIVEN INTERVAL OF TIME
TRUE
ANOTHER NAME FOR DIFFERENTIAL PRESSURE IS HEAD
TRUE
THE MOST WIDELY USED ORIFICE IS
CONCENTRIC
THE EQUATION FOR VELOCITY OF FLOW
V=SQUARE ROOT OF 2GH
WHAT TYPE OF FLOW METER PLACES A BLUNT OBJECT IN A FLUIDS FLOW STREAM WHICH CREATES VORTICES OR SWIRLS OF FLUID THAT FLUCTUATES AROUND THE OBJECT?
VORTEX FLOWMETERS
A VARIABLE-AREA FLOWMETER USES MECHANISMS THAT ACT AGAINST THE FORCE OF FLUID TO DRIVE A PEN
TRUE
LIST 3 TYPES OF METERS
-MASS FLOWMETERS
-VORTEX FLOWMETERS
-ELECTRONIC DIFFERENTIAL PRESSURE
A DALL TUBE’S DESIGN DIFFERS SIGNIFICANTLY FROM THE VENTURI IN 2 RESPECTS WHICH ARE AN ABRUPT SHOULDER AT THE INLET CONE COMES AFTER A SHORT UNIFORM SECTION AND THE LOW PRESSURE TAP AT THE THROAT LEADS TO AN ANGULAR GROOVE THAT ENCIRCLES THE THROAT
TRUE
A POPULAR MECHANICAL MEANS OF MEASURING DIFFERENTIAL PRESSURE IS BASED ON A MERCURY FILLED U TUBE MANOMETER
TRUE
A VARIABLE-AREA FLOWMETER USES MECHANISMS THAT ACT AGAINST THE FORCE OF FLUID TO DRIVE A PEN
TRUE
THE KEY TO A TURBINE METERS OPERATION IS A PERMANENT MAGNET PLACE IN A
COIL
A MAGNETIC FLOW METER RESTRICTS LIQUID TO FLOW
FALSE
A VARIABLE-AREA FLOWMETER USES MECHANISMS THAT ACT AGAINST THE FORCE OF FLUID TO DRIVE A PEN
TRUE
A TURBINE FLOW METER IS SIMPLE, EASY TO INSTALL AND USE, AND ACCURATE TO WITHIN
99%
