[Feb 07, 2025] Real4Prep CFPS Exam Practice Test Questions (Updated 230 Questions) [Q60-Q84]

NEW QUESTION 60
What kit did the U.S. military develop as an antidote to nerve agent exposure?

Mark 1

Pam-2

P-tab

Physostygmine

NEW QUESTION 61
The minimum carbon dioxide design concentration for extinguishment of an ethylene fire is

34%

40%

43%.

49%.

NEW QUESTION 62
What is the minimum pipe diameter size for direct discharge of steam inside a water tank?

1/2 in. (13 mm)

1 in. (25 mm)

1 1/2 in. (38 mm)

2 in. (50 mm)

NEW QUESTION 63
Which of the following conditions may exist within the ductwork during sanding operations in woodworking facilities when the dust concentration in the duct exceeds the minimum explosive concentration (MEC) levels?

Flashover

Conflagration

Deflagration

Implosion

NEW QUESTION 64
The type of smoke detector that operates with a small radioactive source is

beam

line

ionization

photoelectric

NEW QUESTION 65
In reviewing a submittal for a new horizontal centrifugal fire pump, which of the following conditions would conditions would warrant rejection of the submittal?

The head discharge curve of the pump passes above the point of capacity and head

With the pump operating at rated speed and no flow, the total head will be at 130% of rated head at100% flow

With the pump operating rated speed and no flow, the total head will be at 110% of rated head at100% flow

At 150% of rated capacity, total head pressure is 50% of rated total head

NEW QUESTION 66
The travel distance limit for a new hotel protected by an automatic fire sprinkler system is:

175 ft (53 m)

325 ft (99 m)

250 ft (76 m)

200 ft (61 m)

NEW QUESTION 67
A public supply system with a required fire flow of 4,500 gpm (17,033 lpm) should be able to maintain that flow for a duration of:

three hours

two hours

four hours

five hours

NEW QUESTION 68
Which type of roof covering is most effective in preventing the spread of fires from flying brands?

Class A

Class B

Class C

Class D

NEW QUESTION 69
The hazards of the storage and handling of coal includes all the following EXCEPT.

chemical conversion

dust explosions

flash fires

fires

NEW QUESTION 70
In designing a duct system for commercial cooking equipment, what is the minimum air velocity required to minimize grease accumulation?

1,200 ft/min (366 m/min)

1,900 ft/min (580 m/min)

1,500 ft/min (458 m/min)

2,000 ft/min (610 m/min)

NEW QUESTION 71
Fire alarm audibility for public operating mode fire alarm systems must be a minimum of how many dB above ambient noise that lasts 60 seconds or more?

5

20

10

15

NEW QUESTION 72
The duration of required fire flow in public supply systems ranges from

1-4 hours.

2-10 hours.

1-6 hours.

3-8 hours.

NEW QUESTION 73
Liquid carbon dioxide can exist at elevated pressure above 5.2 atmospheres when the temperature is a minimum of:

-71 X F (-57 X C)

-110 X F (-79 X C)

-83 X F (-64 X C)

-79 X F (-62 X C)

NEW QUESTION 74
Water is most effective and most commonly used for which of the following type of fire?

Class B-flammable and combustible liquids

Class A-ordinary combustibles

Class D-combustible metals

Class C-electrical

NEW QUESTION 75
How infectious is smallpox?

It is not at all infectious.

It is highly infectious.

It can be infectious, but only in warm, moist environments.

It can be infectious, but only to people with compromised immune systems.

NEW QUESTION 76
You are investigating a fire in a church, historically speaking, from the data available in the Fire Protection Handbook, what is the leading cause of church structure fires in the U.S.?

Smoking materials

Heating and HVAC equipment

Cooking equipment

Incendiary or suspicious

NEW QUESTION 77
Heat transfer oils can be used up to

600° F (315° C).

650° F(343° C).

700° F (371° C).

750° F (399C).

Explanation
650° F(343° C).
Heat transfer oils are fluids that are used to transfer heat from one source to another in various industrial applications, such as chemical processing, oil refining, power generation, and food processing. Heat transfer oils can be classified into two types: mineral oils and synthetic oils. Mineral oils are derived from petroleum and have a lower cost and a lower flash point than synthetic oils.Synthetic oils are made from organic or silicone compounds and have a higher thermal stability and a higher flash point than mineral oils1 The maximum temperature that heat transfer oils can be used up to depends on the type and quality of the oil, as well as the design and operation of the heat transfer system. Different oils have different boiling points, viscosity, thermal conductivity, and thermal degradation rates.Generally, synthetic oils can withstand higher temperatures than mineral oils, but they are also more expensive and may require special handling and storage1 According to the web search results, the maximum temperature that heat transfer oils can be used up to ranges from 300°C to 400°C (572°F to 752°F), depending on the specific product and manufacturer.For example, the product brochure from Klüber Lubrication states that their heat transfer oils have an application range of operating temperatures up to 550°F (288°C)2.The product data sheet from Sinopec states that their heat transfer oils can be used up to 540°F (282°C)3.The product information from Paratherm states that their high temperature heat transfer fluids have service temperatures of 3°C to 357°C (37°F to 675°F)4. Therefore, based on these sources, the closest answer to the question is B. 650° F(343° C). However, it is important to note that the maximum temperature that heat transfer oils can be used up to may vary depending on the specific conditions and requirements of each application.
References:
Heat Transfer Fluids – A Comparison of Types1
High-temperature heat transfer fluids – Dow5
Heat Transfer Oils – klueber.com2
Heat Transfer Oil Suppliers | Heat Transfer Oils include low …3
High Temperature Heat Transfer Fluids | Paratherm4

NEW QUESTION 78
The removal of flammable vapors by displacement for cleaning a storage tank can be accomplished by displacement with air, inert gas and

sodium bicarbonate

water

earth

absorbant

NEW QUESTION 79
What type of standpipe system has piping that is normally filled with air but does NOT have a preconnected water supply?

Semiautomatic-dry system

Manual-dry system

Automatic-dry system

Manual-wet system

NEW QUESTION 80
What is another term for a joint command structure?

Combined command

Combined operating system

Shared authority command

Unified command

NEW QUESTION 81
Power for driving fire pumps is selected on the basis of reliability, adequacy, economy, and

efficiency.

safety.

adaptability.

ecology.

NEW QUESTION 82
Which of the following heat transfer values is relevant to fire protection because it defines the quantity of heat must be removed to cool a burning solid below its firepoint?

British thermal unit

Specific heat

Latent heat

Heat density

NEW QUESTION 83
What class designation is given to a standpipe system consisting of a 2 . inch (6.35 cm) hose valve specifically for fire department use and a 1 . inch (3.81 cm) hose valve complete with hose and nozzles for building occupant use?

Class III

Class I

Class IV

Class II

NEW QUESTION 84
Potassium bicarbonate is a dry chemical agent considered to be twice as effective as

Asodium bicarbonate.

monoammonium phosphate.

sodium chloride.

potassium sulfide.