Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

RFABC ice facility operator > Test yourself > Flashcards

Test yourself Flashcards

1
Q

Convert 220C to fahrenheit

A

428 F

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Convert 400F to celcius

A

204C

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is the area of a circle that is 55 m in diameter

A

2375.8 meters squared

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the volume in cubic meters of a cylindrical tank with flat ends that is 1.5 meters in diameter and 3.2 meters in length

A

5.654 meter cubed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the volume in litres of a rectangle tank that is 1.3 meter by 1.8 meter and is 5.2 meters long

A

12,168 litres

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

A triangle is 90 right triangle. The two sides adjoining the right angle are 33 cm and 44 cm. What is the length of the third side?

A

55 cm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the area of a right angle triangle with sides 5,7 and 8.602m

A

17.5 meter squared

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the unit of all forms of energy?

A

Joule

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

A pressure gauge reads 100 kPa. What is the absolute pressure (total)?

A

201.3 KPa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

How many kj/kg of energy must be removed to freeze liquid water at 0C into ice at 0C?

A

335 kj/kg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the weight of 1 litre of pure water?

A

1kg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is temp of of absolute zero on Celsius scale

A

-273 C

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is a BTU

A

Heat energy required to raise 1lb of water 1F

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the specific heat of water in kj/kg K

A

4.18 kj//kg K

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What would 1 tonne of water weigh in kg

A

1000 kg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

A 120 v circuit draws 16 amps what is the power consumption in watts

A

1920 w (1.92 kw)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What current will flow through a 25 w bulb at 12 v

A

2.08 amps

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is the power in watts of a 11 amp supply to a 3 ohm resistance

A

363w

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

How much would it cost to use 5 kw for 5 hours at 5.08 cents per kw hour

A

$2.00

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

An arena has 120 lights which are 300 watts each. If electricity costs 5.08/kw hour, what is the cost to run the lights per hour.

A

$2.88 per hour

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What is the cost per day to run the lights

A

$69.12 per day

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What is another term used when referring to watts

A

Power

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What is the resistance of an electric heater that draws 14 amps at 240 volts

A

17.14 ohms

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

In a series circuit of 3 equal resistances, supplied by a 9 volt battery that uses a flow of .03 amps, what is the ohm of each resistance

A

100 ohms

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
What class of fire extinguisher would you require for an electrical fire
Class C
26
What class of fire extinguisher would you require for a wood fire
Class A
27
What class of fire extinguisher would you require for a plastics fire
Class B
28
What class of fire extinguisher would you require for a burning metal fire
Class D
29
What type of refrigerant can you detect with dye and ultraviolet lights
Freon
30
What is the most important thing to do in the event of a fire
Sound the alarm
31
Where is the emergency stop and ammonia release valve for a refrigerant plant
Outside the building
32
What colour is the fire box painted
Red
33
What is the minimum interval that refrigerant detectors must be calibrated
Annually
34
What is the most common cause of accidents
Human error
35
What does WHMIS stand for
Workplace hazardous material information system
36
What does SDS stand for
Safety data sheet
37
Do ammonia cylinders stored in your refrigerant plant require labels
Yes
38
When must the WHMIS program be reviewed
Annually
39
Who administers WHMIS legislation
Worksafe BC
40
Who is responsible for providing labels on controlled products
The supplier
41
Who is responsible for training workers to understand SDS sheets
The employer
42
Who is responsible to make sure products are identified
The employer
43
How many WHMIS hazard classes are there
10
44
Is it Federal or Provincial Government that legislates WHMIS
Both; Federal (supply), Provincial (use)
45
Do SDS’s expire? If so, when?
No but they must be current
46
Can you use a controlled product if it does not have a SDS?
No
47
In the event of eye contact with ammonia what should you do
Flush eyes with large quantities of water
48
What should you do after severe inhalation of ammonia fumes
Obtain immediate medical attention. Follow SDS section Inhalation
49
Is ammonia combustible
Yes but with difficulty
50
What are the flammability limits of ammonia
16% - 25%
51
What is the ph of a 10% solution of ammonia
12
52
Is ammonia alkaline or acidic
Alkaline
53
What is the boiling point of liquid ammonia at atmospheric pressure
-33.35C
54
If a 15ft cubed pressure vessel has a pressure relief valve set at 1725 kPa, then the pressure relief valves must not let the pressure in the vessel rise more than ___ above the setting of the pressure release valve A - 90%. B - 172.5 kPa. C - 10 psi. D- 0 kPa E - 1725 kPa
B 10% higher than 1725 kPa setting.
55
In order to substitute a refrigerant with a different kind of refrigerant, which of the following is true? A- compliance with the latest edition CSA B52 B- permission of the manufacturer C- permission of the contractor D- compliance with the original code of construction
A
56
What is the minimum design pressure for an R717 air cooled compression refrigeration system A- 2016 kPa B- 138 kPa C- 293 kPa D- 951 kPa E- none of these
A
57
What is the required relief valve capacity for an evaporator which is 2.5 m in diameter and 4m overall length (assume NH3 is refrigerant) A- 5 kg per minute B- 24 lbs air per minute C- 5 lbs air per minute D- 25 kg air per minute
D
58
If the location of refrigerant piping is installed between floors that are not adjacent, which is true A- the piping shall be contained in an approved rigid, fire resisting pipe B- the piping shall be non-ferrous larger than 28.6 mm C- that piping must be located in an air shaft D- that piping must cross a stairway or lobbies E- none of these
A
59
Carbon dioxide CO2 is A- a group A1 refrigerant B- not grouped C- not a refrigerant D- toxic when contained E- banned for use
A
60
A change of state with no change in temperature is caused by ____ Latent heat, sensible heat, conduction, or convection
Latent heat
61
A flourocarbon or halocarbon is ____. a secondary coolant, a Freon, a halogen, or none of these
A Freon
62
Is ammonia refrigerant cheaper or more expensive than R22?
Cheaper
63
Does heat travel FROM the brine or TO the brine in the ice rink floor?
To the brine
64
Is R-290 (propane)more or less flammable than R-22?
More flammable
65
Is refrigerant R-717 more or less toxic than R134a?
More
66
The boiling point of water at atmospheric pressure is _____
100C
67
The boiling point of ammonia at atmospheric pressure is _____.
-33C
68
The separation between the primary and secondary refrigerants is ____. the chiller, the compressor, the evaporator, the TXV
The chiller
69
The brine usually used for ice rink cooling floors is ____. Sodium, calcium chloride, glycol
Calcium chloride
70
The brine should be kept at about pH ____.
7.5 to 8.5
71
The main problem with steel brine piping is ____.
Rust on outside, corrosion and fouled nipples
72
What liquid flows through the headers in an indirect system?
Secondary coolant (calcium chloride, glycol)
73
Waste heat produced by the refrigeration system can be used for ____
Heating floor, Zamboni, snow melt
74
The freeze point of calcium chloride is usually kept between ___C and ___C
-20 -23
75
The two types of arena floors are the cooling floor and the ________
Heating floor
76

RFABC ice facility operator (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions