Quiz
Forensic Examination of Fibres
Questions in this quiz (11)
1Which of These is Not a Cross Sectional Shape?
- AHollow
- BEliptical
- CCylindrical
- DFragmented
- ETrilobal
2Which of These is Not a Cross Sectional Shape?
- AHollow
- BEliptical
- CCylindrical
- DFragmented
- ETrilobal
3Which of the Following Would You Look For in a Natural Fibre?
- AUneven Width
- BAn Unusual Cross Sectional Shape
- CIrregular Surface
- DScaly Appearance
- EThe Presence of Delustrants
- FSmooth Surface
4Interference Colours Viewed Under Polarising Light Microscopy Are Best Seen on White Fibres.
- ATrue
- BFalse
5Interference Colours Give a Good Indication of the Type of Fibre Being Examined. A 1st Order Fibre is Likely To Be....?
- APolyester
- BAcetate
- CNylon
6The Michel-Levy Chart is Used for Colours Seen With a Red Compensator Plate.
- ATrue
- BFalse
7What Analytical Techniques Would You Use on Fibres?
- AMicro - Spectrophotometry
- BThin Layer Chromatography
- CInfra-Red
- DGas Chromatography
- EGC - Pyrolysis
- FPhysical Fit
8Which of These Illumination Types Would You Use in Fibre Examination?
- ABright Field Illumination
- BCrossed Polars Illumination
- CUV Light Illumination
- DBlue Light Illumination
9The Equation to Calculate the Refractive Indices of a Fibre (n) is:
n = (speed of light in vacuum/speed of light in fibre).- ATrue
- BFalse
10Birefringence = (Optical path difference/thickness of fibre in micrometers).
- ATrue
- BFalse
11What is the Meaning of Anisotropy?
- ALight Travels at Different Speeds in Different Directions in the Fibre.
- BLight Travels at Different Speeds in the Same Direction in the Fibre.
Information
- Description
- Quiz on the examination techniques used for fibres.
- Author
- Charlotte Camilla
- Language
- English
- Views
- 78
- History
- Created on 23 Mar 2014 · updated on 19 Feb 2016
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