Before replacing the bulb in a projector, it must have been
A) not recently replaced.
B) turned off for a few minutes prior.
C) unplugged.
D) B and C.
Correct Answer:
Verified
Q6: What is the first thing you should
Q7: To ensure a correct reading, a lensometer's
Q8: Avoid using what chemical when cleaning a
Q9: If streaks are visible on a projection
Q10: A phoropter should be serviced every
A)5 years.
B)3
Q11: Which of the following should be recorded?
A)Instrument
Q12: If an instrument with moving parts requires
Q13: If the joystick of a slit-lamp biomicroscope
Q14: How often should a tonometer's head be
Q15: The SLI light on the tonometer has
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