__________inch minimum length block should be used with 7/8-inch rope.

7

According to the Florida Contractors Manual, excavations less than ____________ feet in depth do not
need shoring.

5

The required depth for a 5/8-inch eyebolt is ____________.

15/16 inches

The contractor has to lift 1,800 pounds using block and tackle. The angle will be 90 degrees. The maximum load the contractor can lift using the given information is ____________
pounds.

2,538

The required depth for a 1/2-inch eyebolt is ____________ inches.

3/4

The contractor has to lift 1,600 pounds using block and tackle. The angle will be 80 degrees. The maximum load the contractor can lift using the given information is ____________ pounds.

2,448

The diameter of the eyebolt is 5/8 inches. The depth of the hole should be ____________.

15/16

The safe working load of 1/2 inch manila rope in pounds is ____________

Less than 400

The safe working load of Grade 110/120 Improved Plow Grade steel core 3/4-inch rope is ____________ pounds.

9,560

The safety factor for the 1/2-inch rope is 6. The SWL using the general rule is ____________ ton(s).

1.5

The maximum allowable slope (H:V) for an excavation less than 20 feet deep for soil or rock type "C" is ____________.

1/2:1

The tapped hole for a 3/4-inch eyebolt should be ____________ inches.

1 1/8

Nylon is often used to make ropes because it has ____________ times the strength of manila.

2 1/2

The toggle block angle is 90 degrees. The weight is 1,800 pounds. The weight on the toggle block is ____________ pounds.

2,538

The excavation is 10 feet by 10 feet by 15 feet deep. The excavation was made in Type "C" soil. The measurements at the top of the excavation are ____________.

55 feet by 55

There are ____________ grades of commonly used manila rope.

6

Given an 8-inch block, the rope diameter size should be

7/8 to 1 inch

The contractor is lifting 1,800 pounds. The load on the toggle block will be ____________ pounds. The angle is 90 degrees.

2,538

The contractor must lift 800 pounds of material to the rooftop. The contractor should use rope with a breaking strength of ____________
pounds.

4,000

A 6-inch sheave diameter when using a 3/4-inch rope will produce a strength efficiency of ____________
percent?

83

Spelter sockets will usually provide ____________
percent reliability.

100

When hoisting personnel, a safety factor of____________
should be used for rigging operations.

10

Charlic is installing a 5/8-inch cycbolt. Charlie should drill the hole____________ inches deep.

15/16

When pulling with a rope in other than a straight-line, the contractor may expect a/an

A fifty-percent reduction in strength

An 8-inch block requires a rope diameter of____________
inches maximum.

1

Nylon ropes should only be used in which of following?

Wet locations

Thayer Rope, Inc. sold a rope with a 4,000-pound capacity to 1 Exam Prep. The rope factor was 4:1. The maximum safe load 1 Exam Prep may lift with the rope is

1,000 pounds

When acting as a signaler, which of the following is not allowed?

Placing a signaler on each side of the crane

Bob is using a braided sling with a hook. The maximum percent from plane twist allowed from the
throat is

10

At which of the following angles, measured from the vertical, would a sling have the highest load carrying capacity?

30

According to the Florida Contractors Manual, when unloading materials for storage on the project site, sling angles should be kept at a minimum of ____________ degrees.

45

Using a 6x37 classification of wire rope, Grade 100/110 Plow with a steel core, you would need a ____________ diameter rope to carry a 20,000 lbs. load.

1-1/8"

Synthetic fiber ropes are not generally used in roofing because of the tendency to

Stretch

The reduced capacity of a multiple leg sling with a rated cap of 2,000 pounds at an angle of 45
degrees is____________ pounds.

1,414

According to I, for general rigging, the Safety Factor is____________ for materials.

5

A contractor needs to determine the safe working load of a 3⁄4" nylon rope. There are no manufacturers' charts or tables for the contractor to refer to. The mathematical safe working load (SWL) calculation would yield a SWL of____________ lbs.

2,160

Wire rope with a tensile strength of 224,000 - 246,000 PSI is referred to as

grade 100/110, plow steel

The safe working load (SWL) for a rope with a breaking strength of 2000 lbs. is ____________ lbs. if the rope is being used to hoist materials.

400

If at all possible, keep sling angles greater than

45°

The single most important rigging precaution is determining____________ before attempting to lift them.

the weight of the loads

When manufacturer's charts are not available, SWL can be calculated by dividing the_________ by the_________.

breaking strength, factor of safety

What is the SWL of 7/8" nylon rope?

2,940 lbs.

What is the SWL of 3/8" nylon rope?

What is the SWL of 3/8" nylon rope?

What is the SWL of 3/8" polyethylene rope?

315 lbs.

What is the SWL of 1/2" nylon rope?

960 lbs.

Which of the following manila rope grades is the standard hoisting rope, and usually has an identifying trademark?

Number 1 grade

Which of the following is not one of the most commonly used rope splices?

sailor splice

Fiber ropes are made from

both natural and synthetic fibers

Which of the following is true?

A. Safe Working Load = Breaking Strength + Factor of Safety

B. Safe Working Load = Breaking Strength + Factor of Safety

C. Breaking Strength - Factor of Safety Safe Working Load

D. Safe Working Load + Breaking Strength = Factor of Safety

A. Safe Working Load = Breaking Strength + Factor of Safety

According to the Florida Contractors Manual, for general rigging, the Safety Factor is_________ for personnel.

10

For safe rope use,

avoid all but straight line pulls

In general, all running ropes (except elevator ropes) in continuous service must be inspected

once every working day

The breaking test of 7/8" dacron rope at 25.0 lbs. per 100 feet is ______lbs.

18,000

The maximum working load of 7/8" dacron rope at 25.0 lbs. per 100 feet is______ lbs.

1,980