front 1 __________inch minimum length block should be used with 7/8-inch rope. | back 1 7 |
front 2 According to the Florida Contractors Manual, excavations
less than ____________ feet in depth do not | back 2 5 |
front 3 The required depth for a 5/8-inch eyebolt is ____________. | back 3 15/16 inches |
front 4 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 ____________ | back 4 2,538 |
front 5 The required depth for a 1/2-inch eyebolt is ____________ inches. | back 5 3/4 |
front 6 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. | back 6 2,448 |
front 7 The diameter of the eyebolt is 5/8 inches. The depth of the hole should be ____________. | back 7 15/16 |
front 8 The safe working load of 1/2 inch manila rope in pounds is ____________ | back 8 Less than 400 |
front 9 The safe working load of Grade 110/120 Improved Plow Grade steel core 3/4-inch rope is ____________ pounds. | back 9 9,560 |
front 10 The safety factor for the 1/2-inch rope is 6. The SWL using the general rule is ____________ ton(s). | back 10 1.5 |
front 11 The maximum allowable slope (H:V) for an excavation less than 20 feet deep for soil or rock type "C" is ____________. | back 11 1/2:1 |
front 12 The tapped hole for a 3/4-inch eyebolt should be ____________ inches. | back 12 1 1/8 |
front 13 Nylon is often used to make ropes because it has ____________ times the strength of manila. | back 13 2 1/2 |
front 14 The toggle block angle is 90 degrees. The weight is 1,800 pounds. The weight on the toggle block is ____________ pounds. | back 14 2,538 |
front 15 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 ____________. | back 15 55 feet by 55 |
front 16 There are ____________ grades of commonly used manila rope. | back 16 6 |
front 17 Given an 8-inch block, the rope diameter size should be | back 17 7/8 to 1 inch |
front 18 The contractor is lifting 1,800 pounds. The load on the toggle block will be ____________ pounds. The angle is 90 degrees. | back 18 2,538 |
front 19 The contractor must lift 800 pounds of material to the rooftop. The
contractor should use rope with a breaking strength of ____________ | back 19 4,000 |
front 20 A 6-inch sheave diameter when using a 3/4-inch rope will produce a
strength efficiency of ____________ | back 20 83 |
front 21 Spelter sockets will usually provide ____________ | back 21 100 |
front 22 When hoisting personnel, a safety factor of____________ | back 22 10 |
front 23 Charlic is installing a 5/8-inch cycbolt. Charlie should drill the hole____________ inches deep. | back 23 15/16 |
front 24 When pulling with a rope in other than a straight-line, the contractor may expect a/an | back 24 A fifty-percent reduction in strength |
front 25 An 8-inch block requires a rope diameter of____________ | back 25 1 |
front 26 Nylon ropes should only be used in which of following? | back 26 Wet locations |
front 27 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 | back 27 1,000 pounds |
front 28 When acting as a signaler, which of the following is not allowed? | back 28 Placing a signaler on each side of the crane |
front 29 Bob is using a braided sling with a hook. The maximum percent from
plane twist allowed from the | back 29 10 |
front 30 At which of the following angles, measured from the vertical, would a sling have the highest load carrying capacity? | back 30 30 |
front 31 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. | back 31 45 |
front 32 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. | back 32 1-1/8" |
front 33 Synthetic fiber ropes are not generally used in roofing because of the tendency to | back 33 Stretch |
front 34 The reduced capacity of a multiple leg sling with a rated cap of
2,000 pounds at an angle of 45 | back 34 1,414 |
front 35 According to I, for general rigging, the Safety Factor is____________ for materials. | back 35 5 |
front 36 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. | back 36 2,160 |
front 37 Wire rope with a tensile strength of 224,000 - 246,000 PSI is referred to as | back 37 grade 100/110, plow steel |
front 38 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. | back 38 400 |
front 39 If at all possible, keep sling angles greater than | back 39 45° |
front 40 The single most important rigging precaution is determining____________ before attempting to lift them. | back 40 the weight of the loads |
front 41 When manufacturer's charts are not available, SWL can be calculated by dividing the_________ by the_________. | back 41 breaking strength, factor of safety |
front 42 What is the SWL of 7/8" nylon rope? | back 42 2,940 lbs. |
front 43 What is the SWL of 3/8" nylon rope? | back 43 What is the SWL of 3/8" nylon rope? |
front 44 What is the SWL of 3/8" polyethylene rope? | back 44 315 lbs. |
front 45 What is the SWL of 1/2" nylon rope? | back 45 960 lbs. |
front 46 Which of the following manila rope grades is the standard hoisting rope, and usually has an identifying trademark? | back 46 Number 1 grade |
front 47 Which of the following is not one of the most commonly used rope splices? | back 47 sailor splice |
front 48 Fiber ropes are made from | back 48 both natural and synthetic fibers |
front 49 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 | back 49 A. Safe Working Load = Breaking Strength + Factor of Safety |
front 50 According to the Florida Contractors Manual, for general rigging, the Safety Factor is_________ for personnel. | back 50 10 |
front 51 For safe rope use, | back 51 avoid all but straight line pulls |
front 52 In general, all running ropes (except elevator ropes) in continuous service must be inspected | back 52 once every working day |
front 53 The breaking test of 7/8" dacron rope at 25.0 lbs. per 100 feet is ______lbs. | back 53 18,000 |
front 54 The maximum working load of 7/8" dacron rope at 25.0 lbs. per 100 feet is______ lbs. | back 54 1,980 |