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WGU D450 Community Health Nursing OA Prep & Exam Guide 2026

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Based on the document provided, this study guide is designed for the WGU D450 Community Health Nursing course and its corresponding Objective Assessment (OA) exam. It covers core competencies for public health nursing within Western Governors University (WGU), including levels of prevention, epidemiology, disaster triage, environmental health assessments, and community health models.

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D103 OA2 Intermediate Accounting I (Units 5–7) Quiz 2026 UPDATE




1. Which inventory method generally results in the highest ending inventory during a period

of rising prices?

A. FIFO


B. LIFO


C. Weighted-average cost


D. Specific identification


Answer: A


Rationale: FIFO assumes the earliest goods purchased are the first ones sold. In periods of

rising prices, the remaining inventory consists of the most recent, higher-cost purchases.


2. When applying the lower-of-cost-or-net-realizable-value (LCNRV) rule, net realizable value

is defined as:

A. Selling price minus costs to complete and dispose


B. Selling price plus costs to complete and dispose


C. Replacement cost


D. Selling price


Answer: A

,Rationale: Net realizable value (NRV) is the estimated selling price in the ordinary course

of business, less reasonably predictable costs of completion and disposal.


3. Which of the following costs should be capitalized as part of the cost of land?

A. Fencing and parking lots


B. Excavation costs for a new building


C. Back taxes paid by the buyer at the time of purchase


D. Depreciation on the building


Answer: C


Rationale: Costs necessary to get the land ready for its intended use, such as title fees and

back taxes, are capitalized to the Land account.


4. Under the periodic inventory system, how is the cost of goods sold (COGS) determined?

A. By recording it at the time of each sale


B. By performing a physical count of items sold


C. By adding purchases to the beginning inventory


D. By subtracting ending inventory from the cost of goods available for sale


Answer: D


Rationale: In a periodic system, COGS is a residual amount calculated at the end of the

period: Beginning Inventory + Purchases - Ending Inventory.

, 5. Which depreciation method does not use salvage value in its initial calculation of the

depreciation base for each period?

A. Straight-line


B. Sum-of-the-years’-digits


C. Double-declining balance


D. Units-of-production


Answer: C


Rationale: Double-declining balance applies a constant rate to the book value (Cost minus

Accumulated Depreciation) without subtracting salvage value first, though the asset is not

depreciated below its salvage value.


6. A company exchanges an old machine for a new one. The transaction lacks commercial

substance. If a loss is indicated, the company should:

A. Recognize the loss only if boot is received


B. Defer the loss and adjust the cost of the new machine


C. Recognize the loss immediately


D. Ignore the loss


Answer: C


Rationale: Losses on nonmonetary exchanges are always recognized immediately,

regardless of whether the transaction has commercial substance.

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