chapter 8 rigging

What are parted blocks most commonly used for?

• sagging conductors

• setting poles

• hang pole line equipment

• all the above

Answer explanation

section 8.1

Fill in the blank: Parted blocks are made up of components such as Hook, Safety latch, Shell, Swivel, Sheaves, Center pin, and a _______.

• lift pin

• Pintle

• Becket

• eye link

Answer explanation

section 8.1

Ensure that the ______ is tightly seated or secured.

• center pin

• shell

• swivel

• screw

Answer explanation

section 8.2

What is typically stamped on the hook or shell of blocks?

• Weight rating

• Manufacturer's name

• Date of manufacture

• Serial number

Answer explanation

section 8.3

If a block does not have a weight rating tag visible, what should be done?

• Use it carefully

• Remove it from service immediately

• Check with the manufacturer

• Ignore it

Answer explanation

section 8.3

What is the force required to hold a 1,000 lbs load static when using two parts?

• 1,000 lbs

• 750 lbs

• 500 lbs

• 250 lbs

Answer explanation

section 8.4

What are the two main tensions involved with parted blocks that are critical for lineworkers to understand?

• A) Haul Line and Hook Strain

• B) Load Limit and Hook Strain

• C) Haul Line and Load Limit

Answer explanation

section 8.4

Fill in the blank: Hook Strain is calculated to verify that the working load limit of the ______ is not exceeded.

• blocks.

• pulleys.

• hooks.

• ropes.

Answer explanation

section 8.4

What is added to the weight applied to the rope for every sheave a rope passes through?

• 5% friction

• 10% friction

• 15% friction

• 20% friction

Answer explanation

section 8.5

• friction.

• length.

• blocks.

• weight.

Answer explanation

section 8.5