Plastering Wall Quiz

What is the first step in preparing a wall for plastering?

• Apply the finish coat

• Wet the wall

• Remove any old plaster

• Sand the wall

Answer explanation

The correct first step in preparing a wall for plastering is to remove any old plaster, ensuring a clean surface for the new plaster to adhere to.

Which tool is essential for mixing plaster?

• Trowel

• Hawk

• Mixing bucket

• Float

Answer explanation

The mixing bucket is essential for mixing plaster as it provides a suitable container for combining the plaster with water to achieve the desired consistency.

What is the purpose of a plasterer's hawk?

• To smooth the plaster

• To hold mixed plaster

• To mix plaster

• To apply plaster to high areas

Answer explanation

The purpose of a plasterer's hawk is to hold mixed plaster, making it easier for the plasterer to apply it to the desired surface.

When applying plaster, what is the correct angle to hold the trowel?

• 90 degrees

• 45 degrees

• 30 degrees

• 60 degrees

Answer explanation

The correct angle to hold the trowel when applying plaster is 45 degrees, as it allows for proper spreading and smoothing of the plaster.

What is the recommended thickness for the first coat of plaster on the wall?

• 1mm

• 2mm

• 5mm

• 10mm

Answer explanation

The recommended thickness for the first coat of plaster on the wall is 5mm, as it provides a suitable base for further layers and ensures proper coverage and durability.

Which of the following is NOT a smoothing and finishing technique for plastering?

• Using a wet sponge

• Applying a second coat before the first one dries

• Polishing with a trowel

• Sanding after the plaster dries

Answer explanation

The correct choice is applying a second coat before the first one dries, as it is not a smoothing and finishing technique for plastering.

What safety equipment should be worn when mixing plaster?

• Gloves only

• Safety goggles only

• Gloves and safety goggles

• Gloves, safety goggles, and a dust mask

Answer explanation

The correct safety equipment for mixing plaster includes gloves, safety goggles, and a dust mask to protect against skin irritation, eye injuries, and inhalation of dust particles.

How long should you wait before applying a second coat of plaster?

• Immediately after the first coat

• 1 hour

• When the first coat is touch-dry

• 24 hours

Answer explanation

Wait for the first coat of plaster to be touch-dry before applying a second coat to ensure proper adhesion and finish.

What is the main reason for applying a base coat of plaster?

• To provide a smooth finish

• To ensure better adhesion of the finish coat

• To fill in large gaps and holes

• To waterproof the wall

Answer explanation

The main reason for applying a base coat of plaster is to ensure better adhesion of the finish coat, allowing it to stick properly to the wall surface.

Which of the following is NOT a tool used for plastering?

• Hammer

• Float

• Trowel

• Hawk

Answer explanation

The hammer is NOT a tool used for plastering. The other options - float, trowel, and hawk - are commonly used tools in plastering work.