Certification Exam Practice Questions

EVT Fire Apparatus Technician Level I Certification Exam Practice Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

• Which component is primarily responsible for converting engine

power into hydraulic pressure on a fire pump?

a) Engine governor

b) Pump panel

c) Pump drive

d) Transmission

Rationale: The pump drive connects the engine to the pump, allowing

engine power to be converted into hydraulic pressure for firefighting operations.

• What type of pump is commonly used on fire apparatus for large-

volume water supply? 1 / 4

a) Centrifugal pump

b) Single-stage centrifugal pump

c) Gear pump

d) Positive displacement pump

Rationale: Single-stage centrifugal pumps are standard on fire apparatus

because they provide high flow rates and can operate at various pressures.

• When performing a pump test, the gauge readings are lower than

expected. What is the most likely cause?

a) Air in the system

b) Partial obstruction in the pump intake

c) Engine overheating

d) Low battery voltage

Rationale: A partial obstruction restricts water flow, causing lower

pressure readings during a pump test.

• Which NFPA standard specifies requirements for automotive fire

apparatus?

a) NFPA 1901

b) NFPA 1002

c) NFPA 1500

d) NFPA 1911

Rationale: NFPA 1911 covers inspection, maintenance, testing, and

retirement of in-service fire apparatus, ensuring safe operation. 2 / 4

• What is the primary function of a pressure relief valve on a fire pump?

a) Increase pump pressure

b) Direct water to hoses

c) Prevent over-pressurization

d) Filter debris

Rationale: Pressure relief valves protect the pump and connected lines

from excessive pressure, which could cause damage or hose failure.

• What is the standard method for priming a centrifugal fire pump?

a) Mechanical suction

b) Using a primer pump or vacuum

c) Opening discharge valves

d) Running the engine at idle

Rationale: Centrifugal pumps must be primed to remove air; a primer

pump or vacuum ensures water enters the pump properly.

• What type of fluid is recommended for most aerial device hydraulic

systems?

a) Engine oil

b) Brake fluid

c) Fire apparatus hydraulic fluid

d) Gear oil

Rationale: Fire apparatus hydraulic fluid is specifically formulated to

provide the proper viscosity and performance in aerial devices. 3 / 4

• Which inspection item is most critical before operating a ladder on an

aerial apparatus?

a) Fuel level

b) Hydraulic cylinder and hoses for leaks

c) Tire tread depth

d) Engine oil level

Rationale: Leaks in hydraulic components can cause ladder collapse or

uncontrolled movement, making inspection essential.

• Which component controls the speed of a fire pump relative to engine

RPM?

a) Pump intake gauge

b) Primer

c) Pump governor

d) Pump panel switch

Rationale: The pump governor maintains the desired pump pressure by

regulating engine RPM during pumping operations.

• What is the primary purpose of a booster tank on a fire

apparatus?

a) Store fuel

b) Provide an immediate water supply

c) Supply hydraulic fluid

d) Reduce pump wear

• / 4