ASU ACC231 Exam 3 Practice Exam

Question 1

In a vapor-compression air-conditioning system, what occurs in the evaporator?

Refrigerant absorbs heat and boils Refrigerant rejects heat and condenses Refrigerant pressure rises without heat transfer Refrigerant is mechanically compressed

Correct Answer:

Refrigerant absorbs heat and boils

Explanation:

In the evaporator, low-pressure refrigerant absorbs heat from the conditioned air and changes from liquid to vapor.

Question 2

What is the primary purpose of the compressor in a refrigeration cycle?

Lower the vapor pressure before the evaporator Raise refrigerant vapor pressure and temperature Meter liquid refrigerant into the evaporator Remove moisture from the liquid line

Correct Answer:

Raise refrigerant vapor pressure and temperature

Explanation:

The compressor draws in low-pressure vapor and compresses it to a higher pressure and temperature so heat can be rejected at the condenser.

Question 3

Sensible heat is heat that causes which change?

A change of state only A change in pressure only A measurable temperature change A change in humidity ratio only

Correct Answer:

A measurable temperature change

Explanation:

Sensible heat changes the temperature of a substance without changing its state.

Question 4

Latent heat is associated primarily with which process?

A change in temperature with no phase change A pressure drop through a filter An increase in motor speed A change of state at essentially constant temperature

Correct Answer:

A change of state at essentially constant temperature

Explanation:

Latent heat is absorbed or released during a phase change, such as boiling or condensing, without a corresponding temperature change during the phase change.

Question 5

A refrigerant enters a condenser as a high-pressure vapor. What should it leave as under normal operation?

High-pressure liquid Low-pressure vapor Low-pressure liquid-vapor mixture High-pressure superheated vapor only

Correct Answer:

High-pressure liquid

Explanation:

The condenser rejects heat and condenses high-pressure refrigerant vapor into high-pressure liquid.

Exam overview

About this Exam

The ASU ACC231 Uses of Accounting Information I Exam 3 is a critical component of Arizona State University's foundational financial accounting course.

This course is primarily designed for students pursuing degrees within the W. P. Carey School of Business, though it serves as a valuable prerequisite for anyone requiring a robust understanding of how financial data drives business decisions.

Exam 3 assesses mastery of advanced topics within the accounting cycle and specific components of the financial statements, pushing students beyond basic bookkeeping into the realm of interpretation and application.

Completing this exam successfully is a major stepping stone toward navigating the complexities of corporate financial reporting.

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