FDNY A-35 CERTIFICATE OF FITNESS EXAM QUESTIONS & ANSWERS 2026-202…
P R O F E S S I O N A L P R A C T I C E M AT E R I A L S
FDNY A-35 Certificate of
Fitness Exam Questions &
Answers 2026-2027 |
Updated & Verified
(Rationales)
Verified Answers Exam Ready With Rationales 51 QUESTIONS
DOCUMENT OVERVIEW
This document provides 51 verified questions with correct answers and detailed rationales
on FDNY A-35 certification topics. It serves as a comprehensive study guide for individuals
preparing for the exam, offering direct insights into the expected content and enabling
efficient review of essential concepts. This resource is ideal for focused study and ensuring
readiness for the FDNY A-35 Certificate of Fitness exam.
TOPICS
Air Compressor Fundamentals Q1–Q15
Air Compressor Components & Operation Q16–Q30
Compressor Maintenance & Safety Q31–Q49
Lockout/Tagout Procedures Q50–Q51
Page 1
, E XA M Q U EST I O N S
Q1 QUESTION 1 OF 51
Air compressors power...
CORRECT ANSWER
(1) industrial equipment and (2) construction tools
RATIONALE
Air compressors provide the necessary pneumatic power for operating a wide range of industrial
machinery and portable construction tools. This application relies on the principle of compressed
air as a versatile energy source for mechanical work.
Q2 QUESTION 2 OF 51
Examples of equipment powered by air compressor
CORRECT ANSWER
pneumatic wrenches, lifts in auto service stations, paint spray booths
RATIONALE
Compressed air provides the motive force for pneumatic tools like wrenches and powers hydraulic
systems found in auto service station lifts, while also driving fans in paint spray booths to control
overspray. The key principle tested is the broad application of compressed air as a power source
across various industrial and mechanical systems.
Q3 QUESTION 3 OF 51
Air compressors enable...
CORRECT ANSWER
(1) efficient repair of all types of vehicles; and (2) facilitate their safe operation on public
thoroughfares
Page 2
, RATIONALE
Air compressors power pneumatic tools essential for rapid and thorough vehicle repairs, while also
enabling the inflation of tires to safe operating pressures for road use. This dual function addresses
both maintenance efficiency and public safety compliance.
Q4 QUESTION 4 OF 51
Permit is required for air compressor
CORRECT ANSWER
that compresses air above 100 PSI
RATIONALE
Permit requirements for air compressors are triggered by their operational capacity, specifically
when they can compress air beyond 100 pounds per square inch (PSI). This threshold is established
by regulatory bodies to ensure safety standards are met for high-pressure equipment.
Q5 QUESTION 5 OF 51
Types of air compressors
CORRECT ANSWER
(1) reciprocating;
(2) centrifugal;
(3) solar; and
(4) rotary
*Difference is the way in which they compress air
RATIONALE
Reciprocating, centrifugal, and rotary compressors achieve air compression through mechanical
displacement or energy transfer, whereas solar is an energy source, not a compression mechanism.
This question tests understanding of the fundamental methods by which air is pressurized.
Q6 QUESTION 6 OF 51
How do air compressors work
Page 3
P R O F E S S I O N A L P R A C T I C E M AT E R I A L S
FDNY A-35 Certificate of
Fitness Exam Questions &
Answers 2026-2027 |
Updated & Verified
(Rationales)
Verified Answers Exam Ready With Rationales 51 QUESTIONS
DOCUMENT OVERVIEW
This document provides 51 verified questions with correct answers and detailed rationales
on FDNY A-35 certification topics. It serves as a comprehensive study guide for individuals
preparing for the exam, offering direct insights into the expected content and enabling
efficient review of essential concepts. This resource is ideal for focused study and ensuring
readiness for the FDNY A-35 Certificate of Fitness exam.
TOPICS
Air Compressor Fundamentals Q1–Q15
Air Compressor Components & Operation Q16–Q30
Compressor Maintenance & Safety Q31–Q49
Lockout/Tagout Procedures Q50–Q51
Page 1
, E XA M Q U EST I O N S
Q1 QUESTION 1 OF 51
Air compressors power...
CORRECT ANSWER
(1) industrial equipment and (2) construction tools
RATIONALE
Air compressors provide the necessary pneumatic power for operating a wide range of industrial
machinery and portable construction tools. This application relies on the principle of compressed
air as a versatile energy source for mechanical work.
Q2 QUESTION 2 OF 51
Examples of equipment powered by air compressor
CORRECT ANSWER
pneumatic wrenches, lifts in auto service stations, paint spray booths
RATIONALE
Compressed air provides the motive force for pneumatic tools like wrenches and powers hydraulic
systems found in auto service station lifts, while also driving fans in paint spray booths to control
overspray. The key principle tested is the broad application of compressed air as a power source
across various industrial and mechanical systems.
Q3 QUESTION 3 OF 51
Air compressors enable...
CORRECT ANSWER
(1) efficient repair of all types of vehicles; and (2) facilitate their safe operation on public
thoroughfares
Page 2
, RATIONALE
Air compressors power pneumatic tools essential for rapid and thorough vehicle repairs, while also
enabling the inflation of tires to safe operating pressures for road use. This dual function addresses
both maintenance efficiency and public safety compliance.
Q4 QUESTION 4 OF 51
Permit is required for air compressor
CORRECT ANSWER
that compresses air above 100 PSI
RATIONALE
Permit requirements for air compressors are triggered by their operational capacity, specifically
when they can compress air beyond 100 pounds per square inch (PSI). This threshold is established
by regulatory bodies to ensure safety standards are met for high-pressure equipment.
Q5 QUESTION 5 OF 51
Types of air compressors
CORRECT ANSWER
(1) reciprocating;
(2) centrifugal;
(3) solar; and
(4) rotary
*Difference is the way in which they compress air
RATIONALE
Reciprocating, centrifugal, and rotary compressors achieve air compression through mechanical
displacement or energy transfer, whereas solar is an energy source, not a compression mechanism.
This question tests understanding of the fundamental methods by which air is pressurized.
Q6 QUESTION 6 OF 51
How do air compressors work
Page 3
