CN Techies Interview Questions and Answers

The distance between sprinklers depends on the type of sprinkler system and the specific requirements of the building.

• The distance between sprinklers is determined by the design of the sprinkler system.

• Sprinkler spacing is influenced by factors such as the type of occupancy, ceiling height, and water supply.

• In general, sprinklers are typically spaced between 10 to 20 feet apart.

• However, high-hazard occupancies may require closer spacing, while low-hazard occupancies may allow...read more

The procedure of a Fire Pump Technician involves inspecting, testing, and maintaining fire pumps to ensure their proper functioning.

• Inspecting fire pumps for any signs of damage or malfunction

• Testing the performance of fire pumps by conducting flow tests

• Maintaining fire pumps by lubricating moving parts and replacing worn-out components

• Troubleshooting and repairing any issues with fire pumps

• Documenting all inspections, tests, and maintenance activities

• Ensuring compliance with...read more

The pipe used in fire fighting systems is typically made of steel or a combination of steel and plastic.

• Steel pipes are commonly used in fire fighting systems due to their strength and durability.

• Steel pipes can withstand high pressure and extreme temperatures, making them suitable for fire suppression.

• Some fire fighting systems also use pipes made of a combination of steel and plastic, known as composite pipes.

• Composite pipes offer the advantages of both materials, with the ...read more

There are several types of sprinklers used in fire fighting.

• There are four main types of sprinklers: upright, pendant, sidewall, and concealed.

• Upright sprinklers are installed in an upright position and spray water in a hemispherical pattern.

• Pendant sprinklers are installed hanging down from the ceiling and spray water in a circular pattern.

• Sidewall sprinklers are mounted on the side walls and spray water in a quarter-circle pattern.

• Concealed sprinklers are hidden behind a de...read more

There are five types of fire: Class A, Class B, Class C, Class D, and Class K.

• Class A fires involve ordinary combustible materials like wood, paper, and cloth.

• Class B fires involve flammable liquids like gasoline, oil, and grease.

• Class C fires involve energized electrical equipment.

• Class D fires involve combustible metals like magnesium and titanium.

• Class K fires involve cooking oils and fats.