FLORIDA CERTIFIED MECHANICAL CONTRACTOR
LICENSING EXAMINATION COMPLETE PRACTICE EXAM
| ORIGINAL QUESTIONS & DETAILED ANSWERS |
2026/2027 EDITION
Examiner/Administrator: Florida Department of Business and Professional
Regulation (DBPR) – Construction Industry Licensing Board (CILB)
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FLORIDA CERTIFIED MECHANICAL CONTRACTOR LICENSING EXAMINATION
2026/2027 EDITION
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
COMPLETE ORIGINAL PRACTICE EXAM
100 MULTIPLE-CHOICE PRACTICE QUESTIONS
PASSING SCORE: 70%
TESTING TIME: 240 MINUTES
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
TABLE OF CONTENTS
1. Florida Laws & Licensing Requirements
2. Safety & OSHA Compliance
3. Mechanical Codes
4. HVAC Systems
5. Refrigeration Systems
6. Duct Design & Air Distribution
7. Load Calculations & Equipment Selection
8. Piping Systems & Controls
9. Project Management & Estimating
10. Inspection, Testing & Commissioning
,FLORIDA DEPARTMENT OF BUSINESS AND PROFESSIONAL REGULATION ||
CONSTRUCTION INDUSTRY LICENSING BOARD || ALIGNED WITH CURRENT FLORIDA
LICENSING BLUEPRINTS || ORIGINAL PRACTICE EXAM || PROFESSIONAL STUDY GUIDE
|| COMPREHENSIVE EXAM PREPARATION || CREATED FOR EDUCATIONAL PURPOSES ||
2026/2027 EDITION
Questions 1–8 — Florida Laws, Licensing & Safety
QUESTION 1.
A mechanical contractor is awarded a commercial HVAC replacement project. Before
beginning work, the contractor discovers that the building permit was issued using
outdated construction documents. What is the most appropriate course of action?
A. Proceed because the permit has already been issued.
B. Notify the building official and submit revised documents before continuing.
C. Make field changes without notifying the authority having jurisdiction.
D. Continue installation and revise drawings during final inspection.
Correct Answer: B. Notify the building official and submit revised documents
before continuing.
Explanation: Revised plans affecting code compliance should be reviewed and approved
before construction proceeds. Continuing under incorrect documents may result in
violations, failed inspections, delays, or penalties. The remaining options bypass the
permitting process or rely on improper field modifications.
QUESTION 2.
An OSHA inspector observes employees working on rooftop equipment without
adequate fall protection. Which hazard is being addressed?
A. Arc flash
,B. Respiratory exposure
C. Fall hazard
D. Confined space entry
Correct Answer: C. Fall hazard
Explanation: Rooftop work above applicable trigger heights requires compliant fall
protection. Arc flash, respiratory hazards, and confined spaces involve different safety
controls and are not the primary issue described.
QUESTION 3.
A contractor delegates supervision of refrigerant recovery to an inexperienced
employee who has not been properly trained. Which project risk increases most
significantly?
A. Material shrinkage
B. Environmental regulatory violations
C. Paint adhesion failure
D. Concrete curing delays
Correct Answer: B. Environmental regulatory violations
Explanation: Refrigerant handling is regulated and improper recovery may result in
environmental violations, equipment damage, and safety hazards. The remaining
options are unrelated to refrigerant recovery operations.
QUESTION 4.
Which document establishes the contractual scope of work between the owner and
contractor?
A. Equipment catalog
, B. Construction contract
C. Delivery receipt
D. Warranty registration
Correct Answer: B. Construction contract
Explanation: The construction contract defines responsibilities, scope, payment,
schedule, and obligations. Catalogs, delivery receipts, and warranty forms do not
establish contractual project scope.
QUESTION 5.
Before energizing newly installed HVAC equipment, the contractor should first verify:
A. Decorative finishes
B. Electrical installation complies with approved plans
C. Landscaping completion
D. Occupancy permit issuance
Correct Answer: B. Electrical installation complies with approved plans.
Explanation: Safe commissioning requires verification that electrical work meets code
and approved construction documents. The other items do not directly affect safe
equipment startup.
QUESTION 6.
A contractor encounters asbestos-containing insulation during demolition. What
should occur first?
A. Remove the insulation immediately.
B. Notify appropriate parties and follow applicable asbestos regulations.
LICENSING EXAMINATION COMPLETE PRACTICE EXAM
| ORIGINAL QUESTIONS & DETAILED ANSWERS |
2026/2027 EDITION
Examiner/Administrator: Florida Department of Business and Professional
Regulation (DBPR) – Construction Industry Licensing Board (CILB)
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
FLORIDA CERTIFIED MECHANICAL CONTRACTOR LICENSING EXAMINATION
2026/2027 EDITION
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
COMPLETE ORIGINAL PRACTICE EXAM
100 MULTIPLE-CHOICE PRACTICE QUESTIONS
PASSING SCORE: 70%
TESTING TIME: 240 MINUTES
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
TABLE OF CONTENTS
1. Florida Laws & Licensing Requirements
2. Safety & OSHA Compliance
3. Mechanical Codes
4. HVAC Systems
5. Refrigeration Systems
6. Duct Design & Air Distribution
7. Load Calculations & Equipment Selection
8. Piping Systems & Controls
9. Project Management & Estimating
10. Inspection, Testing & Commissioning
,FLORIDA DEPARTMENT OF BUSINESS AND PROFESSIONAL REGULATION ||
CONSTRUCTION INDUSTRY LICENSING BOARD || ALIGNED WITH CURRENT FLORIDA
LICENSING BLUEPRINTS || ORIGINAL PRACTICE EXAM || PROFESSIONAL STUDY GUIDE
|| COMPREHENSIVE EXAM PREPARATION || CREATED FOR EDUCATIONAL PURPOSES ||
2026/2027 EDITION
Questions 1–8 — Florida Laws, Licensing & Safety
QUESTION 1.
A mechanical contractor is awarded a commercial HVAC replacement project. Before
beginning work, the contractor discovers that the building permit was issued using
outdated construction documents. What is the most appropriate course of action?
A. Proceed because the permit has already been issued.
B. Notify the building official and submit revised documents before continuing.
C. Make field changes without notifying the authority having jurisdiction.
D. Continue installation and revise drawings during final inspection.
Correct Answer: B. Notify the building official and submit revised documents
before continuing.
Explanation: Revised plans affecting code compliance should be reviewed and approved
before construction proceeds. Continuing under incorrect documents may result in
violations, failed inspections, delays, or penalties. The remaining options bypass the
permitting process or rely on improper field modifications.
QUESTION 2.
An OSHA inspector observes employees working on rooftop equipment without
adequate fall protection. Which hazard is being addressed?
A. Arc flash
,B. Respiratory exposure
C. Fall hazard
D. Confined space entry
Correct Answer: C. Fall hazard
Explanation: Rooftop work above applicable trigger heights requires compliant fall
protection. Arc flash, respiratory hazards, and confined spaces involve different safety
controls and are not the primary issue described.
QUESTION 3.
A contractor delegates supervision of refrigerant recovery to an inexperienced
employee who has not been properly trained. Which project risk increases most
significantly?
A. Material shrinkage
B. Environmental regulatory violations
C. Paint adhesion failure
D. Concrete curing delays
Correct Answer: B. Environmental regulatory violations
Explanation: Refrigerant handling is regulated and improper recovery may result in
environmental violations, equipment damage, and safety hazards. The remaining
options are unrelated to refrigerant recovery operations.
QUESTION 4.
Which document establishes the contractual scope of work between the owner and
contractor?
A. Equipment catalog
, B. Construction contract
C. Delivery receipt
D. Warranty registration
Correct Answer: B. Construction contract
Explanation: The construction contract defines responsibilities, scope, payment,
schedule, and obligations. Catalogs, delivery receipts, and warranty forms do not
establish contractual project scope.
QUESTION 5.
Before energizing newly installed HVAC equipment, the contractor should first verify:
A. Decorative finishes
B. Electrical installation complies with approved plans
C. Landscaping completion
D. Occupancy permit issuance
Correct Answer: B. Electrical installation complies with approved plans.
Explanation: Safe commissioning requires verification that electrical work meets code
and approved construction documents. The other items do not directly affect safe
equipment startup.
QUESTION 6.
A contractor encounters asbestos-containing insulation during demolition. What
should occur first?
A. Remove the insulation immediately.
B. Notify appropriate parties and follow applicable asbestos regulations.
