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ERS Test

1. PVM refers to

a) Peroteneal viscolas mass
b) paravetebral massage
c) Pass the vegetables ma'am
d) Partial variable massage
2. A 3 Mhz US oscillator refers to how many cycles per second

a) 30000000
b) 300000
c) 3000000
d) 300000
3. The black wire in a power cord is the:



a) The ground wire
b) The neutral wire
c) The hot wire
4. As Frequency rises, skin resistance goes down

a) Both
b) False
c) True
d) Neither
5. In interferecntial therapy, one frequecny is fixed (stable), the other is:

a) DC straight
b) it cancells out the other frequency
c) fixed at a the same frequency
d) vairiable
6. A 2cm crystal producing an output of 2.5 watts/cm2 equals :

a) 1/2 watt
b) 5 watts total
c) 25 wats total
d) 2.5 watts total
7. Diathermy operates at what frequency:

a) 27 MHz
b) 27 Khz
c) 4000 Hz
d) 0-100 Hz
8. A variable envelope frequency of 1-10 hz is used for treating:

a) Chronic situations
b) edema/muscle re-ed situations
c) Acute situations
9. What is the frequency nomenclature of a low volt AC unit

a) none of the above
b) Medium frequency
c) Ultra high frequency
d) Low frequency
e) Low frequency
10. Part number 2 refers to:



a) The ring
b) The sleeve
c) The probe
d) The tip
11. What is Calibration entry code for the Excel Ultra III

a) US Up intensity at turn on
b) 4545
c) 632
d) 63 and the date on unit
12. A variable envelope frequency of 0-100 hz is used for treating:

a) Chronic situations
b) Edema/muscle re-ed situations
c) Acute situations
13. A variable envelope frequency of 80-100 hz is used for treating:

a) Acute situations
b) edema/muscle re-ed situations
c) Chronic situations
14. "ERA" on an ultrasound applicator refers to:

a) Emphasis Regulation Act
b) Efficiancy Rating Allowance
c) Effective Radiating Area
d) Energy Resistance Amplitude
15. What is the maximun ground resistance for class "B" equipment during safety test

a) 500 milli ohms
b) 1/2 an milli ohm
c) 30 milli ohms
d) 5 ohms
16. What is the frequency nomenclature of interferential current

a) None of the above
b) Low frequency
c) ultra high frequency
d) Medium frequency
e) Medium frequency
17. You go to a clinic, it's a PI clinic and no one speaks engilsh, the first thing you say is:



a) Isthe therapist available
b) Where is the equipment to be checked
c) Are those real?
d) I need a check por vavour
18. "BNR" on an ultrasound applicator refers to:

a) Barrington-Nano reactance
b) Balanced null resistance
c) Beam non-uniformity ratio
d) Balanced neutral resistance
19. A 5cm crystal set at 2.5 watts/cm2 pulsed at 50% equals :

a) 15 total watts
b) 6.25 total watts
c) 12.5 total watts
d) 7.5 total wats
20. and interferential unit uses how many electrodes to produce an interference effect:

a) 4
b) 1
c) 5
d) 3
e) 2
21. In the new FDA standard for lead wires the electrical connection to the pins eminates from;



a) The tip and Sleeve
b) The ring and sleeve
c) The sleeve only
d) The tip and ring
22. Current leakage during safety test is measured in

a) pico amps
b) amps
c) micro amps
d) milli amps
23. The more efficiant a crystal on the US applicator the higher the "BNR"

a) Both
b) False
c) Neither
d) True
24. What is the frequency nomenclature of a 1mhzUltrasound

a) Low frequency
b) Medium frequency
c) Ultra high frequency
d) None of the above
e) High frequency
25. A current leakage test during safety analysis is measured between:

a) neutral and ground
b) hot to neutral
c) ground to ground
d) Hot and ground
26. ERS stands for

a) Emergency Repair Service
b) ERS Biomedical
c) Electronic Repair Services
d) Edward Robert Sam
27. Interferential is more apt to burn a patients skin at the treatment site than DC current

a) Neither
b) True
c) False
28. Part number 3 refers to:



a) The ring
b) The tip
c) The sleeve
d) The probe
29. An Error "8" on a model 110"D" fluidotherapy indicates

a) A heater failure
b) A power issue
c) A Distributor failure
d) A motor failure
30. What is the frequency nomenclature of Diathermy

a) High frequency
b) Ultra high frequency
c) Low frequency
d) None of the above
e) High frequency
31. What is the calibration entry code for an Excel Max US



a) the Date and 63
b) 4545
c) Hold down the US button during power up
d) 632
32. What is the maximum current leakage for class "B" equipment

a) 300 ma
b) 500 ma
c) 4000 uA
d) 500uA
33. What is the frequency nomenclature of a DC current unit

a) Medium Frequency
b) None of the above
c) High Frequency
d) Low Frequency
e) Ultra High Frequency
34. and IST table refers to :

a) Intervatebral massage
b) Interferential Segment treatment
c) Intersegmental traction
d) Isolated Sgemental traction
35. Which blade on a power plug does the neutral wire attach to:



a) The ground pin
b) The gold blade
c) The silver blade
d) The gay blade
36. 12 watts total measured on your UPM from a 5cm applicator equals

a) 2.5 Watts/cm2
b) 2.4 Watts/cm2
c) 6.2 Watts/cm2
d) 2 Watts/cm2
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