LTCW Post Construction Quiz

Scratched glass...*

is common and can be hidden under dirt and debris.only happens on tempered pieces of glass.is common on low-e glass from the coating.isn't common and most contractors know about it.

Damage on construction sites...*

is not common because all supplies and products are new.is common because the number of trades involved.is not common because of the constant inspections.is common because of the low-e glass process.

The tempering process has become a problem for window cleaners because...*

the low-e layer that's added to the glass.the pressure inside to two layers of glass can cause scratches.debris from the furnace rollers can become lodged into the surface of the glass.tint scratches with steel wool and razor blades which makes it difficult to clean.

Fabrication debris are difficult to see in most lighting...*

so you should assume they're not there.but they look like sparkles on the glass surface and cause popping sounds under a razor blade.and they're only common on imported glass.but low-e coatings protect the surface of the glass from scratching.

To quickly visually spot tempered glass...*

check the manufacturer's box for instructions.check the exterior screen tab for the tempered sign.check the job report for type of glass installed on project.check the glass corners for a tempered sign, but remember buyers can order without it.

There are two main ways to scratch glass with your razor blade...*

paint and stucco.fabrication debris and glue.fabrication debris and gritty construction debris.gritty construction debris and paint.

Razor blade scratch characteristics consist of...*

sporadic deep scratches all over the glass.consistent straight scratches that can be deep or light.inconsistent swirl marks across the glass surface.deep sporadic swirls across the surface.

Before using your razor blade you should...*

test it on the edge of the glass and make sure there isn't a popping sound.check with the customer to make sure you can scratch it.check with your supervisor to make sure you can razor blade it.read the window manual to see manufacturers recommendation.

If you hear a popping sound with your razor blade, alternatively you could...*

use your razor blade and hope is doesn't scratch.let the customer know it will scratch if you remove it.polish the glass with wet wool to get off debris.leave it for a coworker to deal with.

Instead of razor blading glass the preferred way of removing heavy debris has become...*

polishing with wool with a minimum rating of 0001.polishing with wool with a maximum rating of 0001.polishing with synthetic wool with any rating.polishing with wool with a rating of 0000.

When polishing with wet wool, you should always...*

keep all fingers on your wool to avoid glass contact.keep at least two fingers on the glass so you can feel.put extra pressure on the glass to get stubborn spots.blade the glass first to remove construction debris.

Hard water on glass during construction...*

is common because stucco is sprayed down during the construction process.is common on internal glass because of condensation inside spec homes.is not common because the glass is brand new.is not common until after the water softener is installed.

If you are scrubbing a window with gritty debris on it or get debris lodged in tools/supplies...*

you are doing your job correctly.you should stop immediately because you can severely scratch the glass.you will most likely not scratch the glass.you are fine to have grit lodged in to your tool/supplies.

You should never use wool on...*

low-e glassplexiglasstinted glassall of the above

If you see welding marks on glass you should...*

scrub really hard to get out the marks.pull your squeegee across it with extra pressure to get off the soapy water.notify customer.figure out what kind of window it is.

Hard water on glass is common and...*

will always come out with a good scrub.will always come out with the right chemical.will never come off no matter what.might come up with a good polish if the minerals aren't etched into the glass.

Tempered glass...*

is not common but popular on homes over by the coast.is common but doesn't make a difference in any cleaning process.is common and can contain fabrication debris which can cause severe scratches when dislodged.contains construction debris which makes it easier to clean.

When using chemicals on a project you should read the SDS, wear PPE and...*

always test in a small area.use extra to get the job done efficiently.smell it to make sure it works.assume it works the same on every job.

If you see consistent and severely scratched glass on a project you should...*

continue because that just the trade that we're in.consult with the customer so they know what's going on before you continue.blame it on the last window cleaners and continue.continue because the customer hopefully won't notice or blame you.

When working on a construction site exposed electrical...*

is not common because contractors use generators and grounded electrical chords.is not common because county inspectors regularly inspect for safety hazards.is common because the law doesn't require insulated electrical lines on construction sites.is common because many sites will use temporary power sources not up to regular code.

Hazards on a construction site can be different than a typical job because...*

contractors make sure the job sites are safe.OSHA regularly inspects the sites for safety.there are more individuals involved, moving equipment, sharp objects, and many other hazards.AMSI insures all equipment to be up to American standard for safety.

Mud on a construction site...*

isn't common and doesn't create additional hazards.is common but doesn't create additional hazards.is common and can create dangerous terrain for setting up ladders.isn't common but annoying

The best way to deal with damage on a project is to...*

continue working and let the customer know later how the job went.assume the customer already knows and continue working.contact the supplier to see if it happened before installation.communicate with the property owner before continuing your work.

Bent screens on a construction project...*

are not common because the screens are brand new.are common because contractors will use helpers who are inexperienced with screens to install them.are not common because they're installed by the manufacturer.are common because of vandalism on the project.

When using a chemical on a project, it's important to...*

work quickly to avoid the chemical from cross contaminating.test in a small inconspicuous area.always mix it with water to dilute it.never use it on tempered glass.

Do not forget to hide the score field before you share the quiz.

Score

Enter the email to which your test results should be sent.

(Ask your supervisor, if applicable.)