Commercial Contractor Practice Exam

Utah R100 Residential and Small Commercial Contractor Practice Exam Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

• What is the primary purpose of a building permit in Utah?
• To increase project cost
• To ensure compliance with building codes
• To guarantee contractor profit
• To prevent property taxes
• To ensure compliance with building codes

Rationale: Building permits are required to ensure that construction

meets local and state codes, promoting safety and compliance.

• According to Utah law, a contractor must provide a written contract

for any residential project over: 1 / 4

A. $500

B. $1,000

C. $2,500

D. $5,000

C. $2,500

Rationale: Utah requires written contracts for residential projects

exceeding $2,500 to protect both homeowner and contractor rights.

• Which of the following is considered an acceptable method for

protecting a construction site from unauthorized entry?

• Posting “No Trespassing” signs only
• Installing fencing and lighting
• Leaving materials unlocked
• Informing neighbors verbally
• Installing fencing and lighting

Rationale: Physical barriers and lighting are standard safety measures

to prevent theft and unauthorized access.

• What is the minimum slope required for a residential roof to ensure

proper drainage in Utah?

• 1/4 inch per foot
• 1/2 inch per foot
• 1 inch per foot
• 2 inches per foot
• 1/2 inch per foot 2 / 4

Rationale: Building codes require a minimum roof slope of 1/2 inch per

foot for water drainage and snow load management.

• When a contractor receives a deposit from a homeowner, Utah law

requires that the deposit must be:

• Returned only if work is delayed
• Applied to project costs
• Held in a trust or escrow account
• Spent at the contractor’s discretion
• Held in a trust or escrow account

Rationale: Utah law mandates that advance payments are protected

to ensure funds are used for the project and not misappropriated.

• Which type of insurance is mandatory for contractors in Utah?
• Life insurance
• Workers’ compensation
• Health insurance
• Auto insurance only
• Workers’ compensation

Rationale: Contractors with employees are required to carry workers’

compensation insurance to cover workplace injuries.

7. A change order should be used to:

• Decrease project cost without homeowner approval
• Document any modifications to the original contract
• Delay project completion 3 / 4

• Replace the original contract entirely
• Document any modifications to the original contract

Rationale: Change orders formalize adjustments to the scope of work,

timeline, or cost, ensuring legal protection.

• According to the Utah Residential Code, stair riser height must not

exceed:

• 6 inches
• 7 3/4 inches
• 8 1/2 inches
• 9 1/4 inches
• 7 3/4 inches

Rationale: The code sets maximum riser heights to reduce fall risk and

ensure uniformity.

9. The purpose of a vapor barrier in residential construction is to:

• Provide structural strength
• Prevent moisture from entering walls
• Reduce sound transmission
• Enhance paint adhesion
• Prevent moisture from entering walls

Rationale: Vapor barriers limit moisture infiltration that could lead to

mold, rot, and structural damage.

• When estimating materials for a concrete slab, the contractor

must consider:

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