Where One or More Lighting Outlet(s) Are Installed for Interior

question 20

Multiple Choice

Where one or more lighting outlet(s) are installed for interior stairways, there must be a wall switch to control the lighting outlet(s) at each floor level and landing, where the stairway between floor levels has __________ risers or more.

• A) 6
• B) 10
• C) 12
• D) 15

---

Definitions:

Payback Method

A capital budgeting technique that calculates the time required to recoup the cost of an investment.

Depreciation

The allocation of the cost of a tangible asset over its useful life.

Net Operating Income

The income earned from a company's everyday business operations, excluding taxes and interest.

Internal Rate

Often referenced in the context of the internal rate of return (IRR), it is a metric used in capital budgeting to estimate the profitability of potential investments.