Wire rope Study guides, Class notes & Summaries

OECP Exam Questions With 100% Complete Solutions What are the four different types of crane signals? - Answer- Hand Voice Audible New The shaded area on a load chart indicates _______? - Answer- A structural chart The minimum distance to a power line of unknown voltage is ? - Answer- 50' When hoisting personnel and have known voltage, can you use Table A and get closer than 20'? - Answer- Never! What is the minimum tale swing clearance requirement - Answer- 2' What kind of rigger i...

you are about to loosen a fishplate bolt. which wrench would be least likely to slip? (Ans- a. 6 point box end wrench b. 12 point box end wrench c. open end wrench you are using a plumb line to check a rail for plumb. you find that at the top it measures 1" and at the bottom it measures 1 1/4". what does this tell you? (Ans- a. the top of the rail needs to go towards the center b. the top of the rail needs to go toward the wall c. the bottom of the rail needs to go toward the wa...

Is there a wire rope deduction? No What is the effective weight of a stowed jib on the Manitex? It is different for every boom length With the jib erected, can you pick off the main? No How many wraps on the drum? 3 When using IWRC or rotation resistant rope, what must you check? You must compare the gross capacity to the max line pull for the reeving configuration

During a rigging operation if an emergency happens who has the authority to give the emergency stop hand signal? CORRECT ANSWER (Anyone on the ground who is in sight of the crane operator). The recommendation when lifting a load longer then __________ is to use two choker hitches. CORRECT ANSWER (12 feet) A hand-operated winching device that should never be used for vertical overhead lifting is a (CORRECT ANSWER come-along All chain hoists use a ____________ to lift heavy loads. CORRECT...

1. What action does a signal person intend the operator to perform if he extends his arm at shoulder height, makes a fist with his hand, and sticks his/her thumb up? a. Boom down b. Swing c. Boom up d. Extend boom - Answer c. 2. When hoisting personnel, within what percentage of level must a telescopic boom crane be in order for the gross ratings in the load chart to remain valid? a. 1% b. 2% c. 5% d. 8% - Answer a. 3. The load line of the crane you're operating contacts ...

Before leveling a mobile crane on outriggers, an operator should ensure: - Answer there is no weight of the crane bearing on any tires Operating a mobile crane with a long boom, on uneven ground, what support condition should be considered? - Answer Keeping 90 degree angle between cylinder rod and pad What is the primary purpose fir a rooster sheave or auxiliary boom point sheave? - Answer Separate the boom hoist lines How many randomly broken wires in a lay length must there be o...

1. A contractor wants to raise the car speed from 100fpm to 125fpm, it currently has a 12" sheave. What sheave is required?: Diam=12" 12/4=3" 25fpm=3" 100fpm + 25fpm= 12"+3"= 15" sheave 2. A MOV (Metal Oxide Varistor) burns out. You replace it, but cannot read voltage or resistance. What should you do?: Replace it with a larger MOV 3. On a Ward-Leonard circuit the break is set, but the motor is trying to slip through the break. What is the issue?: Suicide Circuit 4. You have an old DC ...

1. A load chart range diagram can best be used to help identify:: net capacity 2. for mobile crane working at maximum radius, exceeding what percentage of the cranes capacity requires the radius to be verified?: 80% 3. the minimum depth of thread engagement for a 1/2 in eyebolt into steel object is?: 3/4 in 4. when tying knots in synthetic rope lashing, the rated load is increased by 50% ?: false 5. the size of shackle that can be used in the eye of a wire rope sling must be the wire rope...

Which of the following OSHA regulations govern suspended personnel platforms? correct answers OSHA 1926.1431 According to ASME B30.3 The prohibited zone for power lines that are 60 kV is correct answers 15 ft According to ASME B30.3, load hoist rotation resistant wire rope has a design factor of correct answers 5 to 1 According to ASME B30.3 when Lifting a suspended personnel platform design factor for the rigging hardware is correct answers 5 to 1 According to ASME B30.3 Load hoist ...