CSLB C-28 Practice Questions - California CSLB C-28 Lock and Security Equipment Examination Exam - CSLB C-28 Practice Questions - California CSLB C-28 Lock and Security Equipment Examination Exam

Question 1

What is the maximum down payment a C-28 contractor may lawfully receive before beginning work on a home security lock installation?

$$2,000 or 15% of the total contract price, whichever amount is less $$2,500 or 20% of the total contract price, whichever amount is less $$5,000 or 25% of the total contract price, whichever amount is less $$1,000 or 10% of the total contract price, whichever is less

Correct Answer:

$$1,000 or 10% of the total contract price, whichever is less

Question 2

Under California Civil Code, within how many days after starting work must a locksmith contractor serve a Preliminary 20-Day Notice to preserve mechanic's lien rights on a commercial property?

Within 10 days of starting work or delivering materials to the jobsite Within 20 days of starting work or delivering materials to the jobsite Within 30 days of starting work or delivering materials to the jobsite Within 45 days of starting work or delivering materials to the jobsite

Correct Answer:

Within 20 days of starting work or delivering materials to the jobsite

Question 3

When reviewing an architectural hardware schedule, a technician notes a door marked 'RHR'. How is this door hand determined according to standard hardware industry rules?

Standing inside the room, the door swings inward toward the technician with hinges on the left side of the frame. Standing inside the room, the door swings inward toward the technician with hinges on the right side. Standing outside the room, the door opens outward toward the technician with hinges on the left side. Standing outside the room, the door opens outward toward the technician with hinges on the right side.

Correct Answer:

Standing outside the room, the door opens outward toward the technician with hinges on the right side.

Question 4

An estimator is calculating labor for modifying 15 hollow metal doors to accept heavy-duty Grade 1 mortise locksets. If prep and installation average 1.5 labor-hours per door at $95/hour, what is the total estimated labor cost?

$$1,425.00 for labor cost $$1,710.00 for labor cost $$1,995.00 for labor cost $$2,137.50 for labor cost

Correct Answer:

$$2,137.50 for labor cost

Question 5

A C-28 contractor performs a material takeoff for a 12-door access control installation requiring plenum-rated cable. The measured wire run total is 1,800 feet. Adding a standard 15% allowance for vertical drops, service loops, and waste, how many 1,000-foot cable boxes must be ordered?

3 boxes (2,070 ft required) 2 boxes (2,070 feet required) 4 boxes (2,070 feet required) 5 boxes (2,070 feet required)

Correct Answer:

3 boxes (2,070 ft required)

Question 1

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About this Exam

Prepare with the CSLB C-28 Practice Questions - California CSLB C-28 Lock and Security Equipment Examination Exam practice quiz. This question bank includes 100 questions covering door, power, doors, commercial, and strike. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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CSLB C-28 Practice Questions - California CSLB C-28 Lock and Security Equipment Examination Exam

This practice set contains 100 questions from the matching question bank and focuses on door, power, doors, commercial, and strike. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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CSLB C-28 Practice Questions - California CSLB C-28 Lock and Security Equipment Examination Exam

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