aoife_152
Quiz by , created more than 1 year ago

In order to be granted access to an SEM after hours you are required to pass a competency test. You must answer all questions correctly. Please note that Adelaide Microscopy staff reserve the right to refuse after-hours access until an adequate level of competence on the instrument is demonstrated. Completion of the competency test does not guarantee access.

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aoife_152
Created by aoife_152 about 8 years ago
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SEM Competency Test

Question 1 of 4

1

When not in use what state should the vacuum system be in:

Select one of the following:

  • Always kept under vacuum – before finishing a session the chamber must be pumped.

  • The chamber must be vented at the end of a session

  • Doesn’t matter

Explanation

Question 2 of 4

1

It is dangerous to move the stage when the sample is first inserted. You must first:

Select one of the following:

  • Leave the stage where it is

  • Get the sample into focus and link to the working distance

  • Move to 10mm immediately

Explanation

Question 3 of 4

1

If the sample is not at the correct working distance you won’t:

Select one of the following:

  • Get signal to all the detectors

  • Be able to image

  • Be able to focus

Explanation

Question 4 of 4

1

You can’t get an image, what do you check first:

Select one of the following:

  • The magnification is correct

  • The beam is turned on and you are looking at the sample

  • The focus is correct

Explanation

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