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Exam 1: Medical Gas Supply Equipment

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Question 31

Multiple Choice

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A venturi tube has an expanding radius that does not exceed:

A) 5 degrees
B) 10 degrees
C) 15 degrees
D) 20 degrees

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Question 32

Multiple Choice

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Types of bulk supply systems include: I. liquid main supply with a liquid reserve II. liquid main supply with a cylinder manifold reserve III. cylinder manifold main supply with a cylinder manifold reserve

A) I
B) I and II
C) II and III
D) I, II, and III

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Question 33

Multiple Choice

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Pressure of a fluid at any point in a closed container is the same as the pressure at another point in the same container. This best describes:

Upon inspection you do not see the letter and number combination of 3AL stamped into an oxygen cylinder's shoulder. This means:

In the presence of back pressure, a Bourdon gauge flowmeter will:

You are at sea level working in the NBRC Hospital. What is the partial pressure for oxygen?

Given the following, solve for the new temperature: $\begin{array} { l l } \text { Initial volume } & 9 \mathrm {~L} \\\text { Initial temperature } & 24 \text { degrees Celsius } \\\text { New volume } & 3 \mathrm {~L}\end{array}$

A bulk oxygen supply system's tubing is made from:

A pediatric flowmeter is calibrated from:

Pulse demand delivery devices are advantageous because: I. they only deliver oxygen during inspiration II. they can conserve large amounts of oxygen III. they work well with ambulatory patients

Gas flows from one point to another because:

A constant area duct:

The atmospheric pressure is 740 mmHg (Salt Lake City, UT) . What is the partial pressure for oxygen?

Which of the following should be observed when withdrawing cylinder contents? I. Leave the cylinder cap in place until you attach a regulator or reducing valve. II. Follow all safety precautions. III. Do not force any threaded connections. IV. Open cylinder valves slowly.

A Reynold's number calculation is performed, and the Reynold's number is 1,500. How would this flow be described?

Which of the following are true regarding a compensated Thorpe tube flowmeter? I. The needle valve is proximal to the Thorpe tube. II. The needle valve is distal to the Thorpe tube. III. The flowmeter reads accurately in the presence of back pressure. IV. The flowmeter reads higher in the presence of back pressure.

When making the decision to use a liquid system for a patient's home, it is important to:

A riser valve controls oxygen flow:

An oxygen concentrator works using the principle of:

Elastic collisions between molecules implies that: I. there is no net energy transfer II. no energy is lost by the collision III. no energy is gained by the collision IV. net energy remains the same