20 Reasons You Need to Stop Stressing About Ultrasonic Hatch Cover Tightness Test

The Water Damage Restoration Technician test by the IICRC (Institute of Inspection, Cleaning and Restoration Certification). Water Damage Restoration Technician is a designation that a professional restorer needs to prove that he or she is compiling with the most prevalent standards in the restoration industry. It has become increasingly important for a professional who is performing water damage restoration services to have "WRT" designation. Most companies that hire you require it and insurance companies that hire the companies that provide the service require that their technicians be certified. ™

Since I first took my class ninteen years ago, the material and the test have evolved greatly. There is a lot more information. The class used to be a two day class, but now it is a three day class. There are also five day classes offered that let you take the WRT/ASD (Applied Structural Drying) together. The newest WRT update was published in April of 2006. It is approved by ANSI (Approved National American Standards).

Important items you should know about the test:

Get the book from your teacher prior to attending the class (if possible). Read a few pages everyday. Usually the highlighted parts in the manual are extremely important to know and will defnitely be seen on your test.

Make sure you understand psychrometry completely.

Test has a total of one hundred and sixty multiple choice questions.

The correct answer is not always the only right answer, but rather the best answer.

Currently the answers need to be filled in on a Scantron sheet with a # 2 pencil.

There is no time limit for you to complete the test.

You need to get 75 percent to pass.

It may take up to six weeks to get your results and they are mailed directly to you.

It is also available in Spanish if you request to take it Spanish when registering.

The certification you get is a personal certification and stays with you regardless of who you work for.

Currently the test costs $50.

Cash, personal check, business check and credit cards are accepted. Checks need to be made to the IICRC.

Although I can't tell you the questions on the test, I can give you a good example of what you will see on the test. Answering the questions below will also help you in figuring out how well you'll perform on the test.

IICRC WDR Test Examples:

(1) The study of the relationship between air volume and the amount of moisture it holds at a specific temperature expressed as a percentage of that air's total moisture holding capacity is called:

A) Drying

B) Humidity

C) Psychrometry

D) Ambiance

(2) Harmful microorganisms present in blood or other potentially infectious materials, that could cause disease or death in humans are know as:

A) Bacteria

B) Bloodborne pathogen

(C) Malaise

D) Humectant

(3) Any material that absorbs and retains moisture retains moisture or water vapor from air is know to be:

A) Hepatotoxin

B) Mesophilic

C) Mycotoxin

D) Hygroscopic

(4) Delamination means:

A) Seperation of primary and secondary damage

B) Seperation of primary and secondary backing

C) None of the above

D) A and B both

(5) The person at an insurance company that interprets a policy and works with contractors involved in restoration is known as?

A) Inspector

B) Agent

C) Adjuster

D) Risk manager

(6) The following are potential routes of exposure for workers?

A) Inhalation, contact with mucous membranes, ingestion and dermal

B) Physical, mental, combined and thermal

C) All of the above

D) None of the above

(7) What does H.A.T.T an acronym for?

A) Hot, Alveolar, Temperature, Test

B) Hydrostatic, Absorption, Toxicity, Threshold Limit Value

C) Haitian Cotton, Absorption, Textile, Temperature

D) Humidity, Airflow, Temperature, Time

It isn't as easy as you think. If you have taken the carpet cleaning technician test before or the upholstery cleaning technician test before, you should know that unless you have a background in Biology, you will have to study hard to pass this one.

Since I received a deluge of requests from people wanting to know the answers to test for CCT. I thought I would just add a link on the my website with the answers. Visit the Magic Wand Company website below and select the Article tab then WRT Test Answers.

The purpose of the test is to make sure that a technician learns as much as possible to do his/her job well. I would be happy to help you in your endeavor to learn. Whether you need carpet cleaning supplies or restoration supplies or not, you are welcome to contact me.

IP 56 is a rating for enclosures that are subject to a variety of weather conditions. This is a standard developed by the International Electrotechnical Commission (IEC) and is a worldwide standard. In The original source the U.S., the National Electrical Manufacturers ASsociation (NEMA) sets similar standards.

IEC Ingress Protection Standards

The IEC has a published standard 60529, which defines Ingress Protection using a two digit code. This standard has all the information about testing and applications.

The first digit indicates the protection against access to hazardous sections and whether solid objects can get into the encolosure. In other words, how hard is it to stick your finger in there and cause some trouble.

The second digit indicates the amount of protection against water.

Here are the designations for the first digit - Hazardous Parts:

0 - Non-protected

1 - Protected against access with the back of the hand (50mm size object)

2 - Protected against access with jointed finger (12 mm x 80 mm)

3 - Protected against acess with a tool (2.5 mm)

4, 5, 6 - Protected against access with a wire (1.0 mm)

Here are the designations for the first digit - Solid Foreign Objects:

0 - Non-protected

1 - Objects greater than 50mm

2 - Objects greater than 12.5 mm

3 - Objects greater than 2.5

4 - Objects greater than or equal to 1mm

5 - Dust protected

6 - Dust tight

Protection designation for the second digit - Ingress of Liquids

0 - Non-protected

1 - Water dripping vertically

2 - Water dripping, enclosure tilted up to 15d

3 - Spraying water, upt to 60d angle from vertical

4 - Splashing water, any direction

5 - Jetting water, any direction

6 - Powerful jetting water, any direction

7 - Temporary immersion in water

8 - Continuous immersion in water

You can see that an IP56 rated enclosure is protected against dust (and other small particles) and is water tight against jetting water from any direction.