aoife_152
Test por , creado hace más de 1 año

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.

59
0
0
aoife_152
Creado por aoife_152 hace alrededor de 8 años
Cerrar

SEM Competency Test

SEM Competency Test

Pregunta 1 de 4

1

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

Selecciona una de las siguientes respuestas posibles:

  • 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

Explicación

Pregunta 2 de 4

1

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

Selecciona una de las siguientes respuestas posibles:

  • Leave the stage where it is

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

  • Move to 10mm immediately

Explicación

Pregunta 3 de 4

1

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

Selecciona una de las siguientes respuestas posibles:

  • Get signal to all the detectors

  • Be able to image

  • Be able to focus

Explicación

Pregunta 4 de 4

1

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

Selecciona una de las siguientes respuestas posibles:

  • The magnification is correct

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

  • The focus is correct

Explicación

Anterior
Siguiente