Advanced Environmental Testing Instrumentation

Question 1

What are data loggers?

Answer 1

Stand-alone instruments that automatically measure and store environmental data

Question 2

What are electronic hygrometers?

Answer 2

Device designed to determine relative humidity, air temperature, and dew-point temperature

Question 2

What are oven data loggers?

Answer 2

Devices that measure and record oven temperature profiles

Question 3

What is a stand alone wind data monitor?

Answer 3

Convenient way to gather wind data. Depending on the manufacturer, these instruments may record wind speed, gusts, and direction, as well as time, date, temperature, and other important wind parameters

Question 4

What is a wind speed monitor?

Answer 4

An instrument that gathers wind data to help users decide if conditions are appropriate for coating application projects

Question 5

What do basic electronic hygrometers determine?

Answer 5

• Relative humidity
• Air temperature
• Dew-point temperature

Question 6

What can more advanced electronic instruments determine

Answer 6

• Relative humidity
• Air temperature
• Dew-point temperature
• Surface temperature
• Delta T
• Dry bulb temperature

Question 7

What is Delta T?

Answer 7

Difference of surface temperature and dew point

Question 8

Handheld electronic hygrometers can be used __________?
A. Immediately when changing from one environment to another
B. In an environment requiring intrinsically safe tools
C. Anywhere since there are temperature/environmental restrictions
D. After stabilization in accordance with manufacturer’s requirements

Answer 8

D. After stabilization in accordance with manufacturer’s requirements

Question 9

Standalone data loggers have the following characteristics:
A. Automatically measure and store environmental conditions
B. May have alarms when conditions are not met
C. Are exclusively used in labs
D. Could be some handheld hygrometers with special attachments

Answer 9

A. Automatically measure and store environmental conditions
B. May have alarms when conditions are not met

D. Could be some handheld hygrometers with special attachments

Question 10

What is a digital microscope?

Answer 10

This device uses optics and a charge-coupled device (CCD) camera to output a digital image a monitor

Question 11

What is an Eddy-Current Gauge?

Answer 11

Instruments based on the eddy-current principle are used to measure the DFT of non-conductive films applied to conductive substrates such as aluminum, copper, brass, and stainless steel.

Question 12

What is are Magnifiers?

Answer 12

These devices are used to view surface profile, potential contamination, blisters, rust, mill scale, pinholes, and other surface preparation or coating defects.

Question 13

What is a Moisture Meter?

Answer 13

This instrument indicates the degree of moisture in concrete, fiberglass or wood to a depth of 12.5 cm (5 in.).

Question 14

What is an Optical Microscope?

Answer 14

This instrument uses visible light and a system of lenses to magnify images of small samples.

Question 15

What is a Stereo Microscope?

Answer 15

This instrument uses two separate optical paths with two eyepieces and two objectives to provide slightly different viewing angles for your left and right eye.

Question 16

What is an Ultrasonic Thickness Gauge?

Answer 16

This instrument measures the thickness of coatings on nonmetal substrates (plastic, wood, etc.) without damaging the coating.

Question 17

What is ASTM D6132?

Answer 17

ASTM D6132, Standard Test Method for Nondestructive Measurement of Dry Film Thickness of Applied Organic Coatings Using an Ultrasonic Gauge

Question 18

The pH of a solution that is between 0.0 and 6.5 is considered to be ________?
A Alkaline
B. Basic
C. Neutral
D. Acidic

Answer 18

D. Acidic

Question 19

You are the inspector on a project that requires the use of a ph meter. What steps are required to assure the owner that the results give are accurate? (Select all that apply.)
A. Calibration of instruments
B. Place the probe in a solid material
C. Verification of calibration with buffer solution
D. Using unit with a lightly damaged probe

Answer 19

A. Calibration of instruments

C. Verification of calibration with buffer solution

Question 20

You are the inspector on a project where bronze is the coated substrate. To determine the DFT nondestructively you would use which of the following gauges?
A. Eddy current
B. Electromagnetic
C. Banana
D. Tooke

Answer 20

A. Eddy current

Question 21

Ultrasonic DFT gauges are designed to measure the film non-destructively by sending _______?
A. A magnetic pulse through the film
B. An eddy current through the film
C. A sound pulse through the coating
D. A sound pulse through the concrete

Answer 21

C. A sound pulse through the coating

Question 22

Moisture meters would commonly be used to determine the moisture content in
________? (Select all that apply.)

A. Concrete
В. Plaster
C. Wood
D. Steel

Answer 22

A. Concrete
В. Plaster
C. Wood