BI_9B

Question 1

Operators call meters that measure flow in terms quantity per unit of time? a) Fluid Meters b) Quantity Meters c) Rate Meters d) Flow Meters

Answer 1

c) Rate Meters ref: p. 143

Question 2

One of the most efficient restrictive elements is a? a) b) Venturi Section c) d)

Answer 2

Venturi Section ref: p. 145

Question 3

The _______ stream tap is the high pressure tap and the _____ stream tap is the low pressure. a) b) Up; Down c) d)

Answer 3

up; down ref: p. 148

Question 4

A popular mechanical means of measuring differential pressure is based on a mercury-filled U-tube manometer

a) true
b) false

Answer 4

a) true ref: p. 149

Question 5

A _____ meter is familiar to most consumer of natural gas who use it to monitor gas usage.

Answer 5

Gas Meter ref: p. 154

Question 6

Three devices frequently used in head meters to create a restriction in flow line are:

Answer 6

‘1. Venturi Section 2. Flow Nozzle 3. Plate with hole or orifice ref: p. 144

Question 7

In head meters, differential pressure is measured at points call pressure taps. a) true b) false

Answer 7

a) true ref: p. 144

Question 8

Name the three principal factors important to plate manufacture and design:

Answer 8

‘1. Diameter of the orifice 2. Thickness of the plate 3. Edge of the orifice is rounded, beveled or squared ref: p. 146

Question 9

A variable - area flow meter uses orifices that act against the flow of fluid to drive a pen. a) true b) false

Answer 9

b) false ref: p. 150

Question 10

A blunt object placed in a fluid’s flow stream creates _____ or swirls of fluid that fluctuate around the object in a vortex flow meter

Answer 10

Vortices ref: p. 153