PART 1

Question 1

Convert 1 L to mL

Answer 1

1,000

Question 2

Convert 50 mL to L

Answer 2

0.05

Question 3

Convert 5 dL to mL

Answer 3

500

Question 4

A containers that is calibrated to hold only one exact volume of liquid?

Answer 4

Volumetric flask

Question 5

a standards requires that SDSs are accessible to all employees who come in contact with a hazardous compound?

Answer 5

Hazardous Communication Standards

Question 6

Chemical should be stored

Answer 6

According to their chemical properties and classification

Question 7

Proper personal protection equipment (PPE) in the chemistry laboratory for ROUTINE testing

Answer 7

Impermeable lab coat with gloves

Question 8

A fire caused by a flammable liquid should be extinguished by using which type of extinguisher?

Answer 8

Class B

Question 9

A proper means of disposal for the type of waste?

Answer 9

Microbiologic waste by steam sterilization

Question 10

examples of NONIONIZING RADIATION?

Answer 10

Ultraviolet light and microwaves

Question 11

10 6th

Answer 11

MEGA

Question 12

The prefix which means 10 -9 is

Answer 12

NANO

Question 13

Concentration expressed as the amount of solute per 100 parts of sol

Answer 13

Percent solution

Question 14

Indication of relative concentration:

Answer 14

Dilution

Question 15

molarity of a solution that contains 18.7 grams of KCl in 500 mL (MW 74.5)?

Answer 15

M = 18.7 g / (74.5)(0.5L) = 0.5 M

Question 16

How much 95% v/v alcohol is required to prepare 5L of 70% v/v alcohol?

Answer 16

C1V1 = C2V2
V1 = (70)(5L) / 95 = 3.7 L

Question 17

Convert 72 Fahrenheit to its Celsius equivalent:

Answer 17

C = 5/9 (F - 32) = 5/9 (72 - 32) = 22.2C

Question 18

Convert 100 Celsius to its Kelvin equivalent:

Answer 18

K = C + 273.15 = 100 + 273.15 = 373.15K

Question 19

Most basic pipette:

Answer 19

Glass pipette

Question 20

ROUTINELY USED Pipette

Answer 20

automatic pipette

Question 21

Does not have graduations to the tip

Answer 21

Mohr pipet

Question 22

Pipets are used with biologic fluids having a viscosity greater than that of water:

Answer 22

Ostwald-Folin pipets

Question 23

Pipette with BULB CLOSER TO THE DELIVERY TIP and are used for accurate measurement of VISCOUS FLUIDS, such as blood or serum:

Answer 23

Ostwald-Folin pipets

Question 24

ipette with cylindrical glass bulb near the CENTER of the pipette that helps to distinguish them from other types of transfer pipettes.

Answer 24

Volumetric pipette

Question 25

Extremely inert, excellent temperature tolerance and chemical resistance; used for stir bars, stopcocks and tubing:

Answer 25

Teflon

Question 26

Widely used in plastic ware, too, including test tubes, bottles, graduated tubes, stoppers, disposable transfer pipets, volumetric pipets, and test tube racks. May bind or absorb proteins, dyes, stains, and picric acid

Answer 26

POLYETHYLENE

Question 27

Used in tubes for centrifugation, graduated cylinders, a Very strong plastic but is not suitable for use with strong acids, bases, and oxidizing agents May be autoclaved but with limitations

Answer 27

POLYCARBONATE

Question 28

Rigid, clear type of plastic that should not be autoclaved Used in an assortment of tubes, including capped graduated tubes and test tubes Not resistant to most hydrocarbons, ketones, and alcohols

Answer 28

POLYSTYRENE

Question 29

Horizontal-head centrifuge:

Answer 29

Swinging bucket centrifuge

Question 30

It is used when rapid centrifugation of solutions containing small particles is needed; an example is the microhematocrit centrifuge:

Answer 30

Fixed-angle head centrifuge

Question 31

High-speed centrifuges used to separate layers of different specific gravities, commonly used to separate lipoproteins:

Answer 31

Ultracentrifuge

Question 32

Uses a very high-torque and low-inertia motor to spread MONOLAYER OF CELLS rapidly across a special slide for critical morphologic studies:

Answer 32

Cytocentrifuge

Question 33

The speed of the centrifuge should be checked every 3 months with:

Answer 33

Tachometer

Question 34

Calibration of centrifuges is customarily performed every ______.

Answer 34

Every 3 months (quarterly)

Question 35

Centrifuges are routinely disinfected on a ___ basis.

Answer 35

weekly

Question 36

HIGHLY PURIFIED SUBSTANCES of a known composition:

Answer 36

Standard

Question 37

It represents a specimen that is SIMILAR IN COMPOSITION TO THE PATIENT’S WHOLE BLOOD or plasma:

Answer 37

Control

Question 38

Water produced using either an anion or a cation EXCHANGE RESIN, followed by replacement of the removed ions with hydroxyl or hydrogen ions.

Answer 38

Deionized water

Question 39

The PUREST TYPE OF REAGENT WATER is:

Answer 39

Type I

Question 40

Chemicals that are used to manufacture drugs:

Answer 40

USP and NF chemical grade

Question 41

Basic unit for mass:

Answer 41

Kilogram

Question 42

Which of the following is NOT A COLLIGATIVE PROPERTY of solutions?

Answer 42

pH

Question 43

Most clinical microbiology laboratories are categorized at what biosafety level?

Answer 43

2

Question 44

Degree of hazard #2:

Answer 44

Moderate

Question 45

Degree of hazard 4:

Answer 45

Extreme

Question 46

Degree of hazard 3:

Answer 46

Serious

Question 47

Degree of hazard 1:

Answer 47

Slight

Question 48

Electrical equipment fire:

Answer 48

Class C

Question 49

combustible/reactive metals, such as magnesium, sodium, and potassium

Answer 49

Class D

Question 50

Flammable liquids/gases and combustible petroleum products

Answer 50

Class B

Question 51

Ordinary combustible solid materials, such as paper, wood, plastic, and fabric

Answer 51

Class A

Question 52

Ordinary combustible solid materials, such as paper, wood, plastic, and fabric

Answer 52

Class A

Question 53

Type of extinguisher for CLASS A FIRES

Answer 53

1. Pressurized water 2. Dry chemical

Question 54

Repetitive strain disorders such as tenosynovitis, bursitis, and ganglion

Answer 54

Ergonomic hazards

Question 55

The first step to take when attempting to repair electronic equipment is to

Answer 55

Turn instrument off and unplug it

Question 56

Most common source of light for work in the visible and near-infrared regions

Answer 56

Incandescent tungsten or tungsten-iodide lamp

Question 57

The lamps most commonly used for ultraviolet (UV) work are:

Answer 57

Deuterium discharge lamp and mercury arc lamp

Question 58

Which is the most sensitive detector for spectrophotometry?

Answer 58

Photomultiplier

Question 59

Reflectance spectrometry uses

Answer 59

Tungsten–halogen lamp

Question 60

a light sources is used in atomic absorption spectrophotometry?

Answer 60

Hollow-cathode lamp

Question 61

used to measure concentration of LARGE PARTICLES:

Answer 61

1. Nephelometry 2. Turbidimetry

Question 62

temperature is _______ proportional to fluorescence.

Answer 62

Inversely proportional

Question 63

Low temperature: Increase in fluorescence or Decrease influorescence

Answer 63

Increase in fluorescence

Question 64

Instruments is used in the clinical laboratories to detect beta and gamma emissions?

Answer 64

Scintillation counter

Question 65

Liquids (reagents, diluents, and samples) are pumped through a system of [continuous] tubing:

Answer 65

Continuous flow analysis

Question 66

Checking instrument calibration, temperature accuracy, and electronic parameters are part of:

Answer 66

Function verification