Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

666 IP > Hydronic Heat Quiz > Flashcards

Hydronic Heat Quiz Flashcards

1
Q
  1. Which device protects the boiler from excessive pressure?
A

Pressure relief valve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q
  1. What is the purpose of the boiler operating control?
A

Mainrain normal operating temperature

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q
  1. Which addictional device is required to protect finned tube or low mass heating blilers?
A

Flow switch

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q
  1. Which device protects the boiler and heating system from water change due to thermal expansion?
A

Expansion tank

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q
  1. What is the difference between a wet floor and dry floor radiant panel installation?
A

A wet floor panel is installed in concrete and the dru floorbis under a subfloor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q
  1. The ideal location for a pump is immediately
A

Downstream of the point of no preasure change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q
  1. The location where the compression tank and its piping join the system piping is called ?
A

Point of no pressure change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q
  1. A circulator that is oversized will:
A

Be noisy when it is operating

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q
  1. Flow check valves are used to:
A

Stop thermo siphoning

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q
  1. A differential pressure bypass is used to:
A

Ensure continuous flow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q
  1. A thermostat originates a demand for heat by:
A

Sensing air temperature

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q
  1. An aquastat senses:
A

Water temperature

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q
  1. A sensing device that opens its switch contacts when reaching a set temperature or pressure is:
A

Direct acting

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q
  1. When a bimetal strip is subject to temperature increase, it:
A

Warps

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q
  1. A boiler burner is turned on and off by an
A

Aquastat

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q
  1. A zone valve is controlled by a:
A

Thermostat

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q
  1. A zone valve controls the flow of:
A

Water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q
  1. A relief valve senses and reacts to water:
A

Pressure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q
  1. A high limit burner safety switch with a manual reset button is:
A

An aquastat

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q
  1. A convector heats a room by heating the:
A

Air

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q
  1. Convectors that have fans are called:
A

Unit heaters

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q
  1. The heating element of a convector is usually made of:
A

Finned pipe

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q
  1. The amount of heat given off by a hot gravity circulation convector is usually regulated by an adjustable:
A

Louvre

24
Q
  1. The two types of unit heaters are
A

Vertical and horizontal

25
Q
  1. Which type of tubing allows the most oxygen diffusion?
A

Ethylene propylene diene monomer
EPDM

26
Q
  1. Which type of tubing has the thinnest walls of plastic tubing?
A

Polybutylene
PB

27
Q
  1. Which type of tubing is most flexible?
A

EPDM

28
Q
  1. Which type of tubing is highly resistant to chemicals including oils?
A

PEX

29
Q

Which type of heat transfer is not normally installed under a window?

A

Unit heaters

30
Q

Eccenstric reducers prevent

A

Air pockets

31
Q

The lower the max cold temperatures is, the amount of glycol you need to put into solution:

A

Becomes greater

32
Q

Where tubing passes through an expansion joint in a concrete slab, you must install:

A

A pipe sleeve

33
Q

When installing radiant panel tubing within a structural slab, you should tie straight runs of tubing:

A

Every meter; (3’)

34
Q

Insulation and a heat reflector must be installed when you install a radiant panel;

A

Under a wood floor

35
Q

Radiant panel installation for large commercial products are zoned by:

A

A manifold

36
Q

When sizing the boiler, you should add a minimum of ________ additional output capacity to the calculated heat requirements

A

15%

37
Q

One series loop should be limited to:

A

60,000 btuh

38
Q

If you are installing baseboard heat transfer units, divide the heat loss of a room by the

A

Units capacity per linear foot

39
Q

The head pressure of a pump should be at least

A

The head of the longest circuit

40
Q

The total equivalent length is:

A

1.5 times the length of the longest circuit

41
Q

If the thermostat is not exposed to circulating air, what will happen?

A

the temperature will swing widely

42
Q

if the transformer is defective; what will happen?

A

there will not be any heat

43
Q

if the low voltage circuit is open, what will happen?

A

there will not be any heat

44
Q

if the thermostat is directly exposed to sun, what will happen?

A

the temperature will swing widely

45
Q

if the zone valve is not closing, what will happen?

A

there will be too much heat

46
Q

you are required to replace a bearing and seal assembly on a 3 piece hydronic circulator, what are the correct steps?

A

b. power off, isolate pump, loosen the set screw on spring coupler, ……

47
Q

How does a heating system provide a more comportable living space?

A

By controlling the rate at which radiant energy leaves out bodies

48
Q

The flow of heat energy travels in which direction!

A

From hot to cold

49
Q

Which factor that influences the size of heating systems takes into account tue notmal coldeat temperature dor the region?

A

Design temperature differnce

50
Q

Fire tube boilers are well suited for :_____ water heating or ___\ heating

A

Hot wayer or steam heating

51
Q

Boilers in hot water systems usually operate at ____ c

A

82 C; 180 F

52
Q

High efficiency boilers reauire a _____ drain

A

Floor

53
Q

Air vents on a heating system _____ air

A

Remove

54
Q

Which type of tubing has the property of returning to its original shape?

A

Crosslinked polyethylene PEX

55
Q

The min bend radius should be ____ times the diameter of the tube

A

10

56
Q

Which system is the most balanced system that uses heat transfer units?

A

Reverse return

57
Q

The max velocity through hot water pipes shoild be:

A

4 ft / sec

666 IP (31 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions