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1 of Under which of the following circumstances should an EPE be performed in the State of Texas?

A. Following installation
B. Once a year
C. Once every four years
D. When a 2579 is required
E. Prior to inspection

A, C and E
A, B and D
C and D only
A, C and D
B, C and D

2 of FDA Form 2579 should be completed under which of the following circumstances?

A. Within 30 days following installation
B. Within 90 days following installation
C. Following a repair of the x-ray machine
D. Following a repair of the x-ray machine that only could effect output
E. When an EPE is conducted

A, C, and E
A, D and E
A, C, and E
A and D
B and D

3 of You are working on a Midmark M11 (new Style). What is the expected voltage reading between the right side of R32 and U12 pin 8 (+/- 10%) during pressure calibration?

A. 2.550mV DC
B. 2.550V DC
C. 2.550mV AC
D. 2.550V AC
E. 2.183V DC

A or C
B or D
A, B, C or D
E only
none of the above

4 of You are troubleshooting a Tuttnauer 2540EKA. The unit successfully passes the first full cycle but overheats every other cycle until the unit cools. Which component could the cause of the symptom?

Air Jet Valve (red)
Air Jet Valve (black)
Door Gasket
Water Level Sensor
Air Outlet Valve

5 of You are troubleshooting a Tech West Rocky Series Compressor. The pressure falls below 80 PSI but the heads do not turn on. You find proper voltage going to the heads. What component could cause this symptom?

Desiccant
Check valve
Coalescing Filter
Any of these
None of these

6 of You install a pressure switch on an Air Star 22, turn the unit on, watch the gauge increase until the unit turns off as expected. You verify that air is present in all rooms. Later in the day, a staff member from that office returns from lunch and calls to complain that the compressor will not turn on. What could be causing this?

The purge tank is set to 120 psi on some Air Techniques models.
The purge tank is at 0 psi.
The pressure switch drifted and is calibrated to turn off above 100 psi.
The psi is above 80.
You forgot to open the ball valve.

7 of You are on the phone with a customer troubleshooting a 220V Golden Vac with a symptom of no vacuum. The unit is running but vacuum is not produced. What additional information is useful for drilling down to the root cause?

A. The contactor is engaged.
B. There is 12V across the low voltage fuse.
C. The tank is full.
D. Determine if the symptom is one room, several rooms, or all rooms.
E. Water is in the exhaust line.

A, C, and D
A, B and D
C, D, and E
D
D and E

8 of You are troubleshooting a vacuum system with a low suction symptom. The unit is running but low vacuum is produced throughout the entire office. What additional information is useful for drilling down to the root cause?

A. The vacuum is on a 20 amp breaker.
B. There is 10V across the low voltage fuse.
C. All scavengers are closed.
D. There is a clog inside of an HVE.
E. The water temperature used for mixing the cleaner is 212 degrees fahrenheit.

B is important if A is true.
A is important if B is true.
C, D, and E
C
C and E

9 of You are working on a Marus Delivery System and notice the slow speed is leaking water at the handpiece. What is your course of action?

Replace the water relay.
Reduce the air pressure to the water bottle.
Turn the water off at the needle valve.
Replace the Nut and Connector (DCI# 120T)
Replace the tri-block diaphragm.

10 of A combo valve is:

Located in the J-box and used for regulating air pressure.
A routing mechanism for all handpiece hanger valves.
A combination of air and water control for air-water syringes.
A foot control master valve for water and air control.
Engaged with 5 or 25 psi.

11 of You are working on a Tuttnauer EZ10. The safety valve is popping and the temperature is at 164F. What could cause the issue?

The safety valve is faulty.
The Air Jet Valve is leaking excessive steam.
The adjunct board is out of whack.
The unit is failing the Dick/Bowie Test.
The unit is failing the I/O test.

12 of Why does Tuttnauer include the Air Jet Valve on all models of autoclaves?

To make the temperature and pressure homogeneous throughout the chamber.
To slowly release steam so that the heating elements turn on regularly.
Used as an indicator that steam is present in the chamber.
It is required by the American Society of Mechanical Engineers (ASMC).
All of the above.

13 of The number one reason a Tuttnauer autoclave will fail a spores test is:

The fill solenoid does not completely close.
The Air Jet Valve is clogged.
The Multivalve or Air Outlet Valve is clogged.
Dry cycle is too short.
One or more heating elements are not heating properly.

14 of Which of the following are indicators of a failing door gasket on an autoclave?

A. Water leaking from the door or cassette.
B. Unit over heating.
C. Visible and/or audible steam loss.
D. Gasket shrinkage or damage.
E. Door is difficult to close.

A, B, C, and D
A, C, D, and E
A, B, D
A, B, D, and E
All of the above.

15 of You are working on a Tuttnauer 2540M and notice a slow water drip from the condensation coil. Which of the below statement(s) is/are correct?

A. This is normal operation.
B. Change the fill solenoid.
C. Change the Multivalve.
D. Turn the Multivalve counter clockwise under pressure.
E. Check the fill solenoid for debris.

B then C
E then B
C then D
D the C
A

16 of Dental X-Ray Machines in Texas are Regulated by what code?

FDA Form 2579
TAC 289.232
TXAC 3185.12(ii)
TXAC 12.3185(II)
None of these

17 of The State of Texas requires technique charts for x-rays to be displayed next to the x-ray control except in which situation?

Units manufactured prior to 1979.
The unit has anatomical settings.
RSO includes in the SOP when technique charts are not to be displayed.
Digital radiography is used.
Always.

18 of When the air button, and only the air button, is pressed on a DCI Quick-Clean syringe yet the customer complains of a quick buff of water, which component is most likely to be failing?

The air button (DCI 3085)
The water button (DCI 3085)
The conical spring to help push the water button back up. (DCI 9028)
Adapter Assembly. (DCI 3071)
Syringe head o-ring. (DCI 2201)

of Which statement is a line from the movie Forrest Gump?

I'm your huckleberry.
There's no crying in baseball.
Call me sometime when you have no class.
I see dead people.
Mama, what does vacation mean?

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