Neil Revollo
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Neil Revollo
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Chapter 6 - Fluid Flow in Piping

Chapter 6 - Fluid Flow in Piping

Question 1 of 20

1

In a purely technical sense, the word fluid can mean either a liquid, such as water, or a gas, such as air.

Select one of the following:

  • True
  • False

Explanation

Question 2 of 20

1

Flow velocity is a measurement of the volume of fluid that passes a given location in a pipe in a given time.

Select one of the following:

  • True
  • False

Explanation

Question 3 of 20

1

The static pressure at a given depth below the surface of a liquid remains exactly the same regardless of the diameter of the pipe.

Select one of the following:

  • True
  • False

Explanation

Question 4 of 20

1

Using pressure gauges to detect changes in the head of a liquid is like using thermometers to detect changes in the thermal energy content of that liquid.

Select one of the following:

  • True
  • False

Explanation

Question 5 of 20

1

Each component in a piping assembly or circuit has an associated hydraulic resistance that defines its ability to dissipate thermal energy from the fluid at any given flow rate.

Select one of the following:

  • True
  • False

Explanation

Question 6 of 20

1

Use of pressure drop charts based on 60ºF water will consistently overestimate the pressure drop in hydronic piping circuits because the water will usually be at higher temperatures.

Select one of the following:

  • True
  • False

Explanation

Question 7 of 20

1

The equivalent length of a component is the amount of tubing, of the same pipe size, that would produce the same head loss (or pressure drop), as the actual component, at the same flow rate.

Select one of the following:

  • True
  • False

Explanation

Question 8 of 20

1

The equivalent hydraulic resistance of an entire assembly is always greater than the smallest individual hydraulic resistance.

Select one of the following:

  • True
  • False

Explanation

Question 9 of 20

1

Determining the flow rates in systems with several parallel branches does not require "number crunching."

Select one of the following:

  • True
  • False

Explanation

Question 10 of 20

1

Every piping system should be thought of as having an operating cost as well as an installation cost.

Select one of the following:

  • True
  • False

Explanation

Question 11 of 20

1

The term "flow velocity" is commonly understood to mean the __________ flow velocity of the fluid as it moves through a pipe.

Select one of the following:

  • pressurized

  • average

  • maximum

  • minimum

Explanation

Question 12 of 20

1

A pipe size should be selected that keeps the average flow velocity between _________ ft./sec.

Select one of the following:

  • .5 and .75

  • 1 and 2

  • 1 and 3

  • 2 and 4

Explanation

Question 13 of 20

1

Fluids in a hydronic system contain both thermal and mechanical energy. The mechanical energy, or ________, present in a fluid depends on several factors including its pressure, density, elevation, and velocity at some point in the system.

Select one of the following:

  • flow

  • compression

  • head

  • pressure

Explanation

Question 14 of 20

1

Whenever a fluid flows, an energy dissipating effect called _________ develops both within the fluid stream and along any surfaces the fluid contacts.

Select one of the following:

  • viscous friction

  • thermal reduction

  • anti-flow

  • pressure inhibition

Explanation

Question 15 of 20

1

After the hydraulic resistances of all devices in a piping assembly are determined, they can be combined into a(n) ___________ resistance similar to how electrical resistances are combined in circuit analysis.

Select one of the following:

  • equivalent

  • combined

  • calculated

  • average

Explanation

Question 16 of 20

1

__________ represents the relationship between flow rate and head loss for a given piping circuit using a specific fluid at a given temperature.

Select one of the following:

  • System heat loss coordination

  • System head loss curve

  • System flow equation

  • System flow/loss calculation

Explanation

Question 17 of 20

1

Copper tubing is also subject to a condition called _________, which can literally scrub metal off the inside wall of a tube or fittings.

Select one of the following:

  • thermal rusting

  • frictional pressure

  • flow rasping

  • erosion corrosion

Explanation

Question 18 of 20

1

The simplest piping assemblies are formed by connecting piping components end to end. In some cases, the collection of tubing, fittings, valves, and other components closes on itself to form a __________.

Select one of the following:

  • multi-resistor system

  • radiant loop

  • series circuit

  • thermal compound

Explanation

Question 19 of 20

1

A more efficient method can be used in the common situation where the piping circuit contains a(n) __________ of pipe, fittings, and valves.

Select one of the following:

  • wide variety

  • single size

  • industry standard amount

  • user maintainable

Explanation

Question 20 of 20

1

The piping paths that share common points of connection are said to be piped _________.

Select one of the following:

  • in parallel

  • in series

  • equivalently

  • cooperatively

Explanation

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