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Test Bank for Mosby's Respiratory Care Equipment, 10th Edition by James M. Cairo|updated version ISBN: 9780323068109 |newest edition 2024|2025$17.99
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Test Bank for Mosby's Respiratory Care Equipment, 10th Edition by James M. Cairo|updated version ISBN: 9780323068109 |newest edition 2024|2025Test Bank for Mosby's Respiratory Care Equipment, 10th Edition by James M. Cairo|updated version ISBN: 9780323068109 |newest edition 2024|2025Test Bank for M...
13. Home-Care, Transport Devices, Alternative Devices
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V. Critical Care and Other Therapies
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14. Airway Management Devices and ACLS
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15. Sleep Diagnostics
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, Chapter 01: Basic Physics for the Respiratory Therapist
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MULTIPLE CHOICE ui
1. Power is a measure of which of the following?
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a. Mechanical energy ui
b. Gravitational potential energy ui ui
c. The rate at which work is being performed
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d. The rate at which atoms and molecules move
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ANS: C ui
Power is a measure of the rate at which work is being performed. The formula P = W/J, whereW
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= watts and 1 watt is equal to 1 J/s, expresses this. Joules are the international standard for
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expressing energy and work.
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PTS: ui ui u i 1 REF: u i Page 8 ui
2. When effort produces a change in the position of matter:
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a. work is performed. ui ui
b. it is known as a joule. ui ui ui ui ui
c. mechanical power is created. ui ui ui
d. the law of the conservation of energy is being used.
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ANS: A ui
Work is performed only when effort or outside forces produce a change in the position
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ofmatter.
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PTS: ui ui u i 1 REF: u i Page 8 ui
3. The unit used to express the force of 1 newton (N) acting on a 1-kilogram (kg) object to
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ui moveit 1 meter (m) is which of the following?
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a. Watt c. Kilowatt
b. Joule d. Kinetic energy
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ANS: B ui
One joule is equal to the force of 1 N acting on 1 kg. A watt is equivalent to 1 J/s. A kilowatt
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issimply 1000 W. Kinetic energy is energy an object possesses when it is in motion.
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PTS: ui ui u i 1 REF: u i Page 8 ui
4. Power is expressed in which of the following units?
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a. Newtons c. Ohms
b. Joules d. Watts ui ui u i
ANS: D ui
Power is a measure of the rate at which work is being performed. Energy and work are
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measured in joules. One joule is the force of 1 N acting on a 1-kg object to move it 1 m.
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Ohmsis the resistance an electrical circuit possesses.
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PTS: ui ui u i 1 REF: u i Page 8 ui
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