CCT Pneumatic Principles & Air Flow Mechanics

Question 1

What is the primary principle that enables a Casper pneumatic tube system to transport carriers through the network?

Accepted Answer

Pressure differential created by blowers or vacuum pumps

Answer

Gravity-assisted sliding along a tilted tube

Answer

Electromagnetic propulsion coils embedded in the tube

Answer

Hydraulic fluid force applied at each station

Question 2

In a Casper pneumatic tube system, what mechanical device generates the airflow needed to move carriers?

Accepted Answer

A centrifugal blower or vacuum pump

Answer

A hydraulic piston pump

Answer

A steam boiler and pressure vessel

Answer

A rack-and-pinion drive motor

Question 3

According to Bernoulli's principle, what happens to static air pressure inside a pneumatic tube as air velocity increases?

Accepted Answer

Static pressure decreases as velocity increases

Answer

Static pressure increases proportionally with velocity

Answer

Static pressure remains constant regardless of velocity

Answer

Static pressure doubles each time velocity doubles

Question 4

What unit is most commonly used to measure the vacuum level in a hospital-grade Casper pneumatic tube system?

Accepted Answer

Inches of mercury (in. Hg)

Answer

Decibels (dB)

Answer

Amperes (A)

Answer

British Thermal Units (BTU)

Question 5

What is the typical operating vacuum range for a standard hospital Casper pneumatic tube system?

Accepted Answer

4–8 inches of mercury

Answer

20–30 inches of mercury

Answer

0.5–1.0 inches of mercury

Answer

15–20 inches of mercury

Question 6

Which factor most directly determines carrier transit speed in a Casper pneumatic tube system?

Accepted Answer

The pressure differential across the carrier in the tube

Answer

The surface color and texture of the carrier exterior

Answer

The total number of stations in the network

Answer

The ambient temperature of the mechanical room

Question 7

What is the primary function of a diverter valve in a Casper pneumatic tube network?

Accepted Answer

To route carriers from one tube branch to another at junctions

Answer

To regulate blower motor speed via feedback control

Answer

To filter particulates from the airstream before the blower

Answer

To measure and log carrier velocity at each intersection