MLPAO Test Prep ~ Lab Safety and Equipment Questions with Correct Answers Volumetric pipette - Correct Answer Extremely accurate, calibrated to accurately deliver a fixed volume of liquid Serological pipette - Correct Answer Graduated pipette in which calibration marks extend to the tip Mohr pipette - Correct Answer Graduated pipette in which calibration marks end at a point above the tip Most accurate pipette - Correct Answer Volumetric What is the graduated cylinder used to measure - Correct Answer make accurate volume measurements What is more accurate a graduated cylinder or beaker? - Correct Answer Graduated Cylinder Borosilicate glassware is used for it's high ___ and _____ resistance - Correct Answer temperature and chemical Polystrene is commonly used for _____ materials, is not autoclavable, and limited to ____ - Correct Answer disposable, solvents Autoclave ideal temperature - Correct Answer 121c for 15m at 15 psi Biohazard waste for decontamination - Correct Answer Garbage cycle Liquids and slow steam exhaustion - Correct Answer Liquid cycle Dry glassware/Plastic - Correct Answer Dry Cycle Bagged - Correct Answer Gravity cycle 1 / 2
Ideal temperature for dry heat - Correct Answer 160c for 1h Sterilization definition - Correct Answer Destruction of all microbial life including spores Disinfection definition - Correct Answer Elimination or reduction harmful microorganisms Microscope: Magnification definition - Correct Answer Ability to increase the size or enlarge the image (not clarity) Microscope: Resolution definition - Correct Answer Ability to clearly differentiate and determine two close objects as separate identities Microscope: Refraction definition - Correct Answer The act of bending light as it passes from one medium to another Microscope: Refractive index definition - Correct Answer The speed at which light passes from one medium of a particular density to another in a vacuum Microscope: Numerical Aperture definition - Correct Answer Measure of its ability to resolve fine details of an image Microscope: Vernier scales definition - Correct Answer Relocate a specific object on a slide using the scales located on the microscope stage WHMIS classes and Hazard symbols: Hazards under Class A - Correct Answer Compressed Gas WHMIS classes and Hazard symbols: Hazards under Class B - Correct Answer Flammable and Combustible material WHMIS classes and Hazard symbols: Hazards under Class C - Correct Answer Oxidizing Materials WHMIS classes and Hazard symbols: Hazards under Class D - Correct Answer Materials causing Immediate and serious toxic effects (1), Materials causing other toxic effects (2), Biohazardous infectious materials (3)
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