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Worksheets

Hydronics

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

Define comfort.

a)

Feeling hot and cold at the same time.

b)

Feeling neither warm or cold. Neutral

c)

Drinking Southern Comfort

d)

Slapping your wife's hand off the thermostat.

2.

Name the device that measures humidity.

a)

Thermodisc

b)

Carbonaro Effect

c)

Thermometer

d)

Psychrometer

3.

If you have a two story building and are filling the system with water, the gauge at the first floor reads ________.

a)

10 psig

b)

4 psig

c)

8.66 psig

d)

2.45 psig

4.

What is the rule of thumb height per floor when calculating static head

a)

10 ft

b)

2 ft

c)

4 ft

d)

12.44 ft

5.

Name the two types of drafts used during the combustion process.

a)

Natural draft and mechanical draft

b)

hot draft and cold draft

c)

set it and forget it. Let it rip tatter chip

d)

Prohibited draft and inhibited draft

6.

List common materials used in the construction of boiler heat exchangers.

a)

Oak, glass, steel, aluminized iron, cast away

b)

Copper, stainless steel, cast iron, aluminum, steel

c)

Granite, copper, pine, stainless, bananas, steel

d)

Stone cold, aluminum, stainless, plastic

7.

Select the best definition of FLOW SWITCH.

a)

A means of wasting money on parts when you purchase one.

b)

A means of proving flow through the boiler.

c)

A means of reversing flow through the boiler

d)

A means of going from the primary loop to the secondary loop.

8.

A device used to automatically fill a hydronic system to a specific pressure limit.

a)

Flow control valve

b)

Aqua meter

c)

Compounding relief valve (CRV)

d)

Pressure reducing valve (PRV)

9.

This device is often referred to as the single most import device on the boiler.......

a)

Pressure relief valve

b)

Flow control valve

c)

Virtual gauge

d)

Pressure reducing valve (PRV)

10.

What is the ideal flue temp low limit to keep combustion gases from condensing in the flue?

a)

120 F

b)

200 F

c)

250 F

d)

160 F

11.

What does MBH represent when reading appliance placards?

a)

500 btuh

b)

1000 btuh

c)

10000 btuh

d)

100 btuh

12.

Name the device used to control the temperature of the HTF in a hydronic system?

a)

Thermowell

b)

Hydrometer

c)

Thermostat

d)

Aquastat

13.

The pressure read at the bottom of a hydronic system when no pumps are running is called........

a)

MBH

b)

Static Head

c)

Dynamic Head

d)

Total Head

14.

The device that is used to put HTF in motion in a hydronic system is called.......

a)

Accumulator

b)

Airtrol Fitting

c)

Flow control valve

d)

Centrifugal pump

15.

If a filled hydronic system is 16 psig cold, air pressure in the expansion tank should be.........

a)

16 psig

b)

12 psig

c)

13 psig

d)

20 psig