Exam 6: Physical Principles of Respiratory Care

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Which of the following is/are TRUE of liquids? I.They are hard to compress. II.They exert pressure. III.They exert buoyant force.IV.They conform to their containers.

(Multiple Choice)

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Question 61

What is the density of a mixture of 40% oxygen and 60% helium at STPD?

(Multiple Choice)

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Question 62

A gas at 50° C with a relative humidity of 100% is cooled to 37°C. Which of the following will occur? I.condensation on surfaces II.visible droplet formation III.warming of the adjacent air

(Multiple Choice)

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Question 63

Which of the following is a FALSE statement about oxygen?

(Multiple Choice)

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Question 64

At a room temperature of 22°C, air has the capacity to hold 19.4 mg/L of water vapor. If the absolute humidity in the air is 7.4 mg/L, then what is the relative humidity (RH)?

(Multiple Choice)

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Question 65

One atmosphere (1 atm) of pressure is equivalent to which of the following? I.29.9 inches Hg II.14.7 lb/in² III.1034.0 g/cm² IV.760.0 mm Hg

(Multiple Choice)

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Question 66

Which of the following methods of heat transfer requires no direct contact between the warmer and cooler substances?

(Multiple Choice)

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Question 67

What is the pattern of flow in which a fluid moves in discrete cylindrical streamlines?

(Multiple Choice)

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Question 68

What force is responsible for the spherical shape of liquid droplets and their ability to keep this shape when placed into an aerosol suspension?

(Multiple Choice)

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Question 69

For every liquid there is a temperature above which the kinetic activity of its molecules is so great that the attractive forces cannot keep them in a liquid state. This temperature is called the:

(Multiple Choice)

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Question 70

Under conditions of turbulent flow, what is the driving pressure?

(Multiple Choice)

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Question 71

After placing a liquid into a small-diameter glass tube, you observe the formation of a convex (upwardly curved) meniscus. What conclusion is correct?

(Multiple Choice)

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Question 72

According to Poiseuille's law, the pressure needed to drive a fluid through a tube will increase under which of the following conditions? I.increased fluid viscosity II.decreased tube length III.decreased rate of flow IV.decreased tube radius

(Multiple Choice)

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Question 73

Which of the following is/are TRUE about molecular water vapor? I.Water vapor exhibits kinetic activity. II.Molecular water vapor can be seen. III.Water vapor exerts pressure.

(Multiple Choice)

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Question 74

According to Avogadro's law, under standard conditions of temperature and pressure (0°C and 760 mm Hg), 1 mol of any gas occupies which of the following?

(Multiple Choice)

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Question 75

If a given mass of a gas is maintained at a constant temperature, what will decreasing its pressure do?

(Multiple Choice)

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Question 76

Which of the following equations can be used to calculate the pressure exerted by a liquid?

(Multiple Choice)

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Question 77

A patient has a recorded body temperature of 106° F. What is this temperature in degrees Celsius?

(Multiple Choice)

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Question 78

Which of the following medical gases can be maintained in the liquid form at room temperature? I.nitrous oxide II.carbon dioxide III.oxygen IV.helium

(Multiple Choice)

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Question 79

What is the internal force that opposes the flow of fluids (equivalent to friction between solid substances)?

(Multiple Choice)

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Question 80

Showing 61 - 80 of 89

Exam 6: Physical Principles of Respiratory Care

Which of the following is/are TRUE of liquids? I.They are hard to compress. II.They exert pressure. III.They exert buoyant force.IV.They conform to their containers.

What is the density of a mixture of 40% oxygen and 60% helium at STPD?

A gas at 50° C with a relative humidity of 100% is cooled to 37°C. Which of the following will occur? I.condensation on surfaces II.visible droplet formation III.warming of the adjacent air

Which of the following is a FALSE statement about oxygen?

At a room temperature of 22°C, air has the capacity to hold 19.4 mg/L of water vapor. If the absolute humidity in the air is 7.4 mg/L, then what is the relative humidity (RH)?

One atmosphere (1 atm) of pressure is equivalent to which of the following? I.29.9 inches Hg II.14.7 lb/in2 III.1034.0 g/cm2 IV.760.0 mm Hg

Which of the following methods of heat transfer requires no direct contact between the warmer and cooler substances?

What is the pattern of flow in which a fluid moves in discrete cylindrical streamlines?

What force is responsible for the spherical shape of liquid droplets and their ability to keep this shape when placed into an aerosol suspension?

For every liquid there is a temperature above which the kinetic activity of its molecules is so great that the attractive forces cannot keep them in a liquid state. This temperature is called the:

Under conditions of turbulent flow, what is the driving pressure?

After placing a liquid into a small-diameter glass tube, you observe the formation of a convex (upwardly curved) meniscus. What conclusion is correct?

According to Poiseuille's law, the pressure needed to drive a fluid through a tube will increase under which of the following conditions? I.increased fluid viscosity II.decreased tube length III.decreased rate of flow IV.decreased tube radius

Which of the following is/are TRUE about molecular water vapor? I.Water vapor exhibits kinetic activity. II.Molecular water vapor can be seen. III.Water vapor exerts pressure.

According to Avogadro's law, under standard conditions of temperature and pressure (0°C and 760 mm Hg), 1 mol of any gas occupies which of the following?

If a given mass of a gas is maintained at a constant temperature, what will decreasing its pressure do?

Which of the following equations can be used to calculate the pressure exerted by a liquid?

A patient has a recorded body temperature of 106° F. What is this temperature in degrees Celsius?

Which of the following medical gases can be maintained in the liquid form at room temperature? I.nitrous oxide II.carbon dioxide III.oxygen IV.helium

What is the internal force that opposes the flow of fluids (equivalent to friction between solid substances)?

History of Respiratory Care

Quality and Evidence-Based Respiratory Care

Patient Safety, Communication, and Record Keeping

Principles of Infection Control

Ethical and Legal Implications of Practice

Computer Applications in Respiratory Care

The Respiratory System

The Cardiovascular System

Ventilation

Gas Exchange and Transport

Solutions, Body Fluids, and Electrolytes

Acid-Base Balance

Regulation of Breathing

Bedside Assessment of the Patient

Interpretation of Clinical Laboratory Data

Interpreting the Electrocardiogram

Analysis and Monitoring of Gas Exchange

Pulmonary Function Testing

A Review of Thoracic Imaging

Nutrition Assessment

Pulmonary Infections

Obstructive Lung Disease: Copd, Asthma, and Related Diseases

Interstitial Lung Disease

Pleural Diseases

Pulmonary Vascular Disease

Acute Lung Injury, Pulmonary Edema, and Multiple System Organ

Lung Cancer

Neuromuscular and Other Diseases of the Chest Wall

Disorders of Sleep

Neonatal and Pediatric Respiratory Disorders

Airway Pharmacology

Airway Management

Emergency Cardiovascular Life Support

Humidity and Bland Aerosol Therapy

Aerosol Drug Therapy

Storage and Delivery of Medical Gases

Medical Gas Therapy

Lung Expansion Therapy

Bronchial Hygiene Therapy

Respiratory Failure and the Need for Ventilatory Support

Mechanical Ventilators

Physiology of Ventilatory Support

Initiating and Adjusting Ventilatory Support

Noninvasive Positive Pressure Ventilation

Monitoring and Management of the Patient in the Intensive Care Unit

Discontinuing Ventilatory Support

Neonatal and Pediatric Respiratory Care

Patient Education and Health Promotion

Cardiopulmonary Rehabilitation

Respiratory Care in Alternative Settings

Filters

One atmosphere (1 atm) of pressure is equivalent to which of the following? I.29.9 inches Hg II.14.7 lb/in² III.1034.0 g/cm² IV.760.0 mm Hg