Install MOD Week 1 EXAM

Safety protection should be worn:

• At all times when performing any work that requires PPE.

• When handling refrigerant cylinders.

• When working with liquids, vapors, or solid objects that are extremely hot or cold.

The base of an extension ladder that is correctly set up will be:

• 1 foot from the wall for every 4 feet in length.

• Exactly 3 feet from the wall.

• The same distance away from the wall as the height of the ladder

• As close to vertical as possible.

The top of an extension ladder:

• Should extend at least 36 inches above the point where it rests on the building.

• Flush with the edge of the roof

• At least 12 inches above the point where it rests on the building.

• At least 12 inches below the point where it rests on the building.

How can a confined space, such as a walk-in cooler or underground tunnel, become a safety hazard?

• The nitrogen can combine with carbon dioxide to form a toxic gas.

•  Cell phones do not receive service in confined spaces.

• Displace oxygen and can cause suffocation.

What are symptoms of CO poisoning?

• Loss of blood and appetite

• Headache, dizziness, weakness

• Dehydration, slurred speech, blurred vision

• Memory loss, nervous energy, agitationc

How can maintaining an orderly shop or service van be beneficial?

• Less time is spent using required tools or materials.

• Less time is wasted searching for required tools or materials.

• There is less productivity when using required tools or materials.

• There is more frustration when searching for required tools or materials.

To keep rust from forming on hand tools, technicians can:

• Sand the outside of the tool periodically.

• Keep each tool inside a plastic bag.

• Apply a light coat of oil to the metal parts.

• Paint all your hand tools with a rust-inhibiting paint

Why should pliers NOT be used to tighten bolts and nuts?

• They will overtighten the nut.

• They will round off the corners.

• They will strip the threads of the bolt.

• It is too difficult to get the pliers to fit the nut.

What is a service valve wrench?

• A wrench used to install service valves on a hermetic system

• A ratchet wrench with square openings that fit service valve stems

• A pair of pliers that is used to turn a manual service valve stem

• A tool used to change the core in Schrader valves

Deburring tools are used for:

• Removing splinters from wood frame members.

• Removing the small burr left by pipe cutters.

• Preparing a compressor head before applying a head gasket.

• Removing rough edges from electrical wiring.