665199
Beschreibung
Quiz von Charlotte Camilla, aktualisiert more than 1 year ago
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Erstellt von Charlotte Camilla
vor mehr als 10 Jahre
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Frage 1
Frage
Which of These is Not a Cross Sectional Shape?
Antworten
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Hollow
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Eliptical
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Cylindrical
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Fragmented
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Trilobal
Frage 2
Frage
Which of These is Not a Cross Sectional Shape?
Antworten
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Hollow
-
Eliptical
-
Cylindrical
-
Fragmented
-
Trilobal
Frage 3
Frage
Which of the Following Would You Look For in a Natural Fibre?
Antworten
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Uneven Width
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An Unusual Cross Sectional Shape
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Irregular Surface
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Scaly Appearance
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The Presence of Delustrants
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Smooth Surface
Frage 4
Frage
Interference Colours Viewed Under Polarising Light Microscopy Are Best Seen on White Fibres.
Antworten
- True
- False
Frage 5
Frage
Interference Colours Give a Good Indication of the Type of Fibre Being Examined. A 1st Order Fibre is Likely To Be....?
Antworten
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Polyester
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Acetate
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Nylon
Frage 6
Frage
The Michel-Levy Chart is Used for Colours Seen With a Red Compensator Plate.
Antworten
- True
- False
Frage 7
Frage
What Analytical Techniques Would You Use on Fibres?
Antworten
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Micro - Spectrophotometry
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Thin Layer Chromatography
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Infra-Red
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Gas Chromatography
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GC - Pyrolysis
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Physical Fit
Frage 8
Frage
Which of These Illumination Types Would You Use in Fibre Examination?
Antworten
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Bright Field Illumination
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Crossed Polars Illumination
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UV Light Illumination
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Blue Light Illumination
Frage 9
Frage
The Equation to Calculate the Refractive Indices of a Fibre (n) is:
n = (speed of light in vacuum/speed of light in fibre).
Antworten
- True
- False
Frage 10
Frage
Birefringence = (Optical path difference/thickness of fibre in micrometers).
Antworten
- True
- False
Frage 11
Frage
What is the Meaning of Anisotropy?
Antworten
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Light Travels at Different Speeds in Different Directions in the Fibre.
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Light Travels at Different Speeds in the Same Direction in the Fibre.
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