Alabama Electrical Contractor Exam

Addenda are contract changes made before the contract award, while modifications are changes made after the contract is signed and executed.

In arbitration a third-party arbitrator acts as a judge and renders an arbitral award that legally binds all parties, while in mediation the neutral mediator only facilitates dialogue and the parties themselves set the terms of any agreement.

Collaborative law uses the parties' own advocates (usually lawyers) to negotiate a mutually beneficial result with no neutral mediator or arbitrator involved.

All-risk covers direct loss by any peril not specifically excluded by the policy (almost all risks), while named peril has narrower coverage and lists the perils covered, such as fire and lightning.

Project overhead includes job-specific items such as bonds, temporary storage, temporary office, security guard, utilities, dumpsters and portable toilets, while company overhead includes office rent, accounting fees and legal fees.

The unit price method bundles labor, materials, equipment and subcontractors into a single price for an entire task, while the quantity take-off method estimates each component individually.

Bid rigging is collusion in which contractors coordinate bids to fix the award outcome; bid shopping is seeking lower subcontractor bids after original bids are submitted, and bid peddling is a subcontractor approaching the general contractor after award to lower the price.

Leasing requires no down payment, spreads lower payments over a longer period, makes payments deductible as operating expenses and returns obsolete equipment to the owner, while purchasing usually costs less in the long run and gives ownership and salvage value (leases generally cannot be cancelled).

Ratings 1, 3, 6 and 601 amperes are additional standard ratings for fuses only, while values such as 15 through 6000 amperes listed in Table 240.6(A) (e.g., 110 A) apply to both fuses and inverse time circuit breakers.

NFPA 70E prohibits tagout without a lock unless the isolating device is incapable of accepting a lock, whereas OSHA permits tagout where the employer demonstrates an equivalent level of safety.

A single-phase AC or DC motor on a 2-wire ungrounded supply needs only one running overload unit in either conductor, while a 3-phase motor requires three overload units, one in each phase.

In raceways, the sum of the cross-sectional area of the individual conductors shall not exceed 40 percent of the interior cross-sectional area of the raceway, except as permitted in 620.32 for wireways, where the limit is 50 percent.