WorksheetsFingerprint Detection Methods Quiz
Total questions: 10
Worksheet time: 5mins
Which chemical is commonly used to detect fingerprints on paper and produces a purple blueprint as the appearance of the print?
Ninhydrin
Silver Nitrate
Iodine Fuming
Cyanoacrylate Vapor
What is the main fingerprint surface suitable for Cyanoacrylate Vapor?
Paper
Household items: plastic, metal, glass, and skin
Wood, Styrofoam
Cardboard
Which chemical reacts with amino acids found in sweat to reveal fingerprints?
Silver Nitrate
Iodine Fuming
Ninhydrin
All of the above
What is the appearance of a fingerprint developed using Cyanoacrylate Vapor?
Purple blueprint
White print
Black or red print under UV light
Brown print
Which chemical is applied by heating solid iodine crystals in a vapor tent?
Ninhydrin
Silver Nitrate
Iodine Fuming
Cyanoacrylate Vapor
What is the chemical reaction involved when using Silver Nitrate to detect fingerprints?
Reacts with amino acids
Iodine combines with carbohydrates
Chloride from salt in sweat combines with silver nitrate to form silver chloride
Reacts with oils
Which fingerprint detection method is best for wood and Styrofoam surfaces?
Ninhydrin
Cyanoacrylate Vapor
Silver Nitrate
Iodine Fuming
What is a key characteristic of the print developed by Iodine Fuming?
White print
Brown print that fades quickly and must be photographed
Purple blueprint
Black print under UV light
Which chemical method is suitable for detecting fingerprints on unpainted surfaces like cardboard?
Ninhydrin
Iodine Fuming
Silver Nitrate
Cyanoacrylate Vapor
What is the application process for Ninhydrin in fingerprint detection?
Heat sample in a vapor tent
Object dipped or sprayed in Ninhydrin; wait 24 hours
Heat solid iodine crystals in a vapor tent
Object dipped or sprayed in Silver Nitrate
