NCCER Interior Finishing & Drywall 2

Question 1

What is the first coat of joint compound applied during drywall finishing called?

Accepted Answer

Tape coat (embedding coat)

Answer

Finish coat

Answer

Skim coat

Answer

Texture coat

Question 2

How many total coats of joint compound are typically required to achieve a professional-quality finish?

Accepted Answer

3 coats

Answer

1 coat

Answer

2 coats

Answer

4 coats

Question 3

What type of drywall tape is most appropriate for finishing inside corners?

Accepted Answer

Paper tape

Answer

Fiberglass mesh tape

Answer

Metal corner bead

Answer

Vinyl corner tape

Question 4

What is the primary purpose of metal or vinyl corner bead on outside drywall corners?

Accepted Answer

To protect the corner from impact damage and provide a straight finishing edge

Answer

To seal the corner joint against moisture infiltration

Answer

To increase fire resistance at exterior corners

Answer

To add decorative detail to wall corners

Question 5

In drywall finishing, what does the technique called 'feathering' mean?

Accepted Answer

Thinning the compound edges so they blend imperceptibly into the surrounding wall

Answer

Applying a thick, even coat across the entire joint

Answer

Using a specialized feather brush to create wall texture

Answer

Mixing compound with water until it reaches a thin, pourable consistency

Question 6

What is the proper preparation step between drywall compound coats?

Accepted Answer

Lightly sand the dried coat and wipe away all dust

Answer

Add water to thin the compound for easier spreading

Answer

Mix in a hardener to accelerate drying

Answer

Apply a primer to seal the previous coat

Question 7

Which type of joint compound is best suited for the final finish coat?

Accepted Answer

Lightweight topping compound

Answer

All-purpose compound

Answer

Setting-type compound (hot mud)

Answer

Base coat compound