8.
You are called to repair a CS-8952 system in which the generator does not turn on
and the MAINS switch does not light up. Which of the following is a likely cause?
a. A fault on the rotor-controller PCB.
b. A burnt coil on the contactor.
c.
An open back-up contactor.
d. A fault in the spot-film device.
9.
During PMCS of a CS-8952 X-ray system, the safety light comes on while you are
making an exposure. Which of the following conditions could be present?
a. Dirty contacts on the ma-select relay(s).
b. A burnt coil on the contactor.
c.
The high-voltage generator could be unbalanced.
d. The circuit breaker could be open in the filament circuit.
10.
You are troubleshooting a spot-film device with a jammed cassette carriage.
Which of the following conditions is a probable cause?
a. Position-sensor flags out of adjustment.
b. An unloosened column-rotation lock.
c.
The cassette-present sensor may be out of alignment.
d. An open 27vac power-supply protection fuse (F-2).
11.
You diagnose an image intensifier problem as ionized gas in the intensifier tube.
How do you remedy the condition?
a. Open the bleed valve, bleed off the gas, and recharge the tube.
b. Ground out the intensifier tube.
c.
Momentarily apply maximum kvp and mas to the intensifier tube.
d. Apply power to the intensifier tube and let it run for 24 hours without X-rays.
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MD0351
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