Alaska Petroleum Contractors Crane Operator's Written Test Part 1 - Safe Operations Name: Date: The following 60 questions are based on the safety handbook for the Grove model RT 990 rubber tired crane. The purpose of this open-book test is to determine that the operator-candidate is able to locate important information from the manufacturer's manual. Although this test is open-book, operator- candidates may not work together to answer questions, share answers between themselves, or obtain outside help from anyone other than the instructor. To pass this test, the operator-candidate must correctly answer 45 of the 60 questions. Of the 60 questions, there are 10 critical questions that are marked with asterisks (*). The operator-candidate must correctly answer all ten of these critical questions. In the space to the right of each question, write the page number on which you found the answer to that question. For example, if the answer to question #1 was found in section 1 on page 10, write 1-10 on the line to the right of question 1. 1. What is the maximum radius that the Grove RT 990 crane is capable of safely lifting 90 tons? feet 2. How many boom sections are there? 3. What is the gross weight of the crane? pounds 4. What is the length of the tail swing of the superstructure? inches Alaska Petroleum Contractors Crane Operator’s Written Test Page 1 of 17
Transcript
Alaska Petroleum ContractorsCrane Operator's Written Test
Part 1 - Safe Operations
Name: Date:
The following 60 questions are based on the safety handbook for the Grove model RT 990 rubber tired crane. The purpose of this open-book test is to determine that the operator-candidate is able to locate important information from the manufacturer's manual. Although this test is open-book, operator-candidates may not work together to answer questions, share answers between themselves, or obtain outside help from anyone other than the instructor.
To pass this test, the operator-candidate must correctly answer 45 of the 60 questions. Of the 60 questions, there are 10 critical questions that are marked with asterisks (*). The operator-candidate must correctly answer all ten of these critical questions.
In the space to the right of each question, write the page number on which you found the answer to that question. For example, if the answer to question #1 was found in section 1 on page 10, write 1-10 on the line to the right of question 1.
1. What is the maximum radius that the Grove RT 990 crane iscapable of safely lifting 90 tons? feet
2. How many boom sections are there?
3. What is the gross weight of the crane? pounds
4. What is the length of the tail swing of the superstructure? inches
5. What is the capacity of 3/4" cable on a 26” hoist drum? feet
6. What is the voltage of the electrical system? volts
7. What is the voltage of the starting system? volts
8. What is the overall width of the crane with outriggersretracted and no pads attached? feet inches
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9. What is the machine height with the boom at 0 degrees? feet inches
10. What is the prime responsibility of a crane operator?
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11. How should the operator check for crane stability afterproperly setting up the crane?
12.* Should wheels be suspended clear of the ground beforelifting on outriggers? (Yes or No)
13. Using the "load-line method" the operator can determine if the crane is level by raising the boom, lowering the hook block near the ground and checking to see if the line is aligned with the center of the boom. This test should be done over both the front and side.(True or False).
14. Why must load lines be in a vertical position before lifting a load?
15.* Where does the operator find the allowable lift capacity?
16.* Which of the following are considered as part of the load to be lifted? (Circle the correct answers)
A. Spreader bars, slings, chains, baskets, pallet forksB. Sheave blocks, hook blockC. Boom headD. Boom extension, jibE. All of the above
17. At what speed should the engine be run to move a load slowly and smoothly?
18. When extending hydraulic boom sections, which procedure is correct? (Circle the correct answer)
A. Inner boom extended first
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B. Outer boom extended firstC. Both booms extended equally
19. Who should be consulted before making multiple-crane lifts?
20. When should a qualified signal man be available?
21.* What should a crane operator do if communications are lost between the operator and the signal man during a lift? (Circle the correct answer)
A. Finish the lift then stop.B. Stop and lower the load to the ground.C. Stop and do not move the load.
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22.* When a qualified signal man is on the job, the crane operator should take signals only from the signal man, except for one signal which should be taken from anyone. What is that signal?
23.* Under what circumstances are you allowed to push or pull a load with the crane boom?
24. What type loads are cranes designed to handle?
25. The crane operator is responsible for: (Circle the correct answer)
A. Knowing the correct rigging to use.B. Knowing the correct inspection procedure for wire rope.C. Safety of people while the crane job is being done.D. All of the above.
26. How many wraps of wire rope is the minimum to be left on the hoist drum during operation?
27. When beginning the actual lift of a load, which of the following happens? (Circle the correct answer)
A. The boom bends down bringing the load closer.B. The crane tips slightly, lengthening the boom.C. The boom goes down slightly, increasing the load radius.D. All of the above.
28. How would you check the hoist brake to see if it is working properly?
29. When should all braking and holding devices be checked?
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30. Pulling a load sideways with the boom and using swing to move the load is permissible? (True or False)
31. Is it permissible to wrap hoist cable around a load?(Yes or No)
32. Who must authorize any modifications to a crane?
33.* Does the operator need to know the procedures and specifications for inspecting the wire rope?(Yes or No)
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34. Write, in your own words, what the term “two blocking” means.
35. What are three ways “two blocking” could occur on hydraulic cranes?
1.
2.
3.
36.* What is the closest distance away from an electrical power source that a crane can be operated? feet
37.* Are there special procedures when working near electrical power sources? (Yes or No)
38. Above what wind speed is it NOT permissible to lift personnel using a manbasket? MPH
39.* When is it permissible to lift a larger load than the load chart indicates is safe?
40. How long is the boom of the RT 990 when fully retracted? feet
41. How long is the four section boom of the RT 990 when fully extended? feet
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42. What is the highest angle, in degrees, that the boom will go? °
43. What is the normal CAT low idle oil pressure? psi
What is the normal CAT high rpm oil pressure? psi
44. When the axle oscillation lockout system override light is on, the axle: (Circle the correct answer)
A. Will not oscillateB. Will oscillate
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45. List eight things to be checked during a complete walk around visual inspection before operation of the crane:
46. The hydraulic pump must be engaged before starting a cold engine. (True or False)
47. The engine must be shut off before engaging the PTO to the hydraulic pump. (True or False)
48. All crane functions should be performed with the engine at high or near-high rpm. (True or False)
49. An outrigger selector push button must be pushed before moving the toggle switch to extend or retract the outriggers in order to: (Circle the correct answer)
A. To warm up cold hydraulic oilB. To prevent hydraulic lockC. To engage the hydraulic motor
50. How high must the carrier be on the outriggers for the best crane stability?
51. After arriving on the job site and before swinging the crane, you must check: (Circle the correct answer)
A. Boom swing pathB. Tail swing areaC. Swing lock pinD. Electric house brakeE. All of the above
52. In the event that an equalizer line breaks, you must perform which of the following boom operations? (Circle the correct
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answer)
A. Slow the engine and lower the boom to set the load downB. Keep engine speed up and put the boom lever in the up
position while swinging to a safe area. Then lower the load.C. Swing to a safe area while lifting the load line to keep the load
off the ground.
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53. Moving the swing lever through neutral to the opposite direction of movement: (Circle the correct answer)
A. Can cause side pull on the boomB. Can damage the machineC. Both of the above
54. Why should the crane NOT be driven with the boom off center? (Circle the correct answer)
A. The auto oscillation switch will engage, locking the axleB. The house should be locked when travelingC. Both of the above
55. The crane should not be driven with the boom cylinders bottomed out because: (Circle the correct answer)
A. This could cause damage to the cylindersB. This could bend the boomC. Both of the above
56. Rear steering is used only at the job site for added maneuverability. It should not be used on the road.(True or false)
57. What would be the result of shifting to a lower speed when traveling faster than the allowed speed for the new gear?
58. Does the crane need to come to a complete stop when shifting from four-wheel to two-wheel drive?(Yes or No)
59. Describe the procedure for engaging the hydraulic pump.
60. What is the correct position of the ignition switch before engaging the hydraulic pump?
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Alaska Petroleum ContractorsCrane Operator's Written Test
Part 2 - Rigging
Name: Date:
The following 16 questions are based on the rigging, slings and wire rope reference materials supplied as part of the study materials. The purpose of this open-book test is to determine that the operator-candidate is able to correctly use basic safe rigging practices as they apply to crane operations. Although this test is open-book, operator-candidates may not work together to answer questions, share answers between themselves, or obtain outside help from anyone other than the instructor.
To pass this test, the operator-candidate must correctly answer 12 of the 16 questions. Of the 16 questions, there are 4 critical questions that are marked with asterisks (*). The operator-candidate must correctly answer all four of these critical questions.
1.* What is the safety factor for wire rope used for most crane operations? (Circle the correct answer)
A. 5B. 10C. 2
2.* What is the safety factor for wire rope used for lifting personnel? (Circle the correct answer)
A. 5B. 10C. 2
3.* Wire rope, used as running rope on cranes, must be replaced if: (Circle the correct answer)
A. There are 3 or more broken wires in one strand in one layB. There are 3 or more broken wires in one lay
4. Wire rope, used as running rope on cranes, must be replaced if there are 6 or more randomly distributed broken wires in one rope lay. (True or False)
5. What is the maximum safe working load, in tons, of 18 x 7, non-rotating, 3/4”, grade 100-110 round strand wire? tons
6. What is the safe working load, in pounds, of a 4” wide, 12 gauge metal mesh sling used as a single basket hitch? pounds
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7. What is the safe working load, in pounds, of a 7/8”, 6 x 37, improved plow steel wire rope sling with a fiber core when used in a single choker hitch? pounds
8. What is the safe working load, in pounds, of a forged alloy steel swivel hook with a throat opening of 1 1/2”? pounds
9. What is the safe working load, in pounds, of a 7/8” shoulder type eye bolt used with a sling angle of 75°? (Circle the correct answer)
A. 7,200 poundsB. 3,960 poundsC. 5,200 pounds
10. What is the safe working load, in pounds, of a 3/4”, weldless construction, forged alloy steel shackle used in a single vertical pull? pounds
Label each of the following as correct or wrong:
Use Word 6.0c or later to
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11. 12. 13.
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14. Which is correct? (A or B)
Use Word 6.0c or later to
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14. Which is correct? (A or B)
Use Word 6.0c or later to
view Macintosh picture.
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16* Is this correct? (Yes or No)
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Alaska Petroleum ContractorsCrane Operator's Written Test
Part 3 - Load Charts
Name: Date:
The following 38 questions are based on the Grove RT 990 crane load charts supplied as part of the study materials. The purpose of this open-book test is to determine that the operator-candidate is able to correctly use load charts to determine safe working loads and safe crane working configurations. Although this test is open-book, operator-candidates may not work together to answer questions, share answers between themselves, or obtain outside help from anyone other than the instructor.
To pass this test, the operator-candidate must correctly answer 29 of the 38 questions. Of the 38 questions, there are 16 critical questions that are marked with asterisks (*). The operator-candidate must correctly answer all 16 of these critical questions.
For this test, use 200 pounds for the weight of slings. Show your calculations in the space provided.
1. What is the heaviest load that can be lifted with the RT 990 crane with the load set at a 20 foot radius? pounds
2.* When calculating a lift using the main boom only, which of the following items are considered as part of the load? (Circle the correct answers)
A. Telescopic boom extension, stowed or erectedB. Headache ballC. Hook blockD. SlingsE. Spreader barF. Auxiliary boom headG. All of the above
3. When calculating the weight of a load to be lifted on rubber (no outriggers), which items must be considered? (Circle the correct answers)
A. Tire sizeB. Tire pressureC. The ambient temperatureD. All of the above
4. What is the highest angle (in degrees) that the boom will operate? degrees
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5. When on outriggers and using 87 feet of boom, what is the lowest boom angle that a load can be lifted? degrees
6. Using the answer to question #5, what is the radius? feet
7. When on outriggers, the maximum loads shown above the bold line on load charts are calculated on structural strength of the crane while those below the bold line are calculated at 85% of tipping. (True or False)
8. When on rubber, the maximum loads shown above the bold line on load charts are calculated on structural strength of the crane while those below the bold line are calculated at 75% of tipping. (True or False)
9. What is the maximum length of boom that can safely be laid down to 0 degrees with no load when:
A. on outriggers and over the side? feetB. on outriggers and over the front? feetC. on rubber and over the side? feetD. on rubber and over the front? feet
10. What is the maximum radius that you can set a load weighing 23,000 pounds? feet
11.* You are asked to pick a total load weighing 14,850 pounds over the front and to set the load over the side. What is the maximum radius (in feet) that you can set the load? feet
12. Show your calculations in the work-space below:
A. You are asked to set a turbine weighing 56,100 pounds over the side. What is the largest radius, in feet, that you can safely set the load? feet
B. The lifting eyes on the turbine are 12 feet high and you are using 10 foot slings. What is the maximum height, in feet, you can set the load? feet
What boom angle do you use? degrees
What is the longest permissible boom length? feet
Weights: Load: pounds10 ton headache ball: pounds90 ton hook block: poundsTeleboom (stowed): poundsAux. boom head: poundsSlings: pounds
Total load weight: pounds
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13.* With the teleboom extension in the working position, the main boom extended to 96 feet, and no load on the line, what is the lowest permissible boom angle before tipping? degrees
14. You are asked to lift a load onto the top of a building. The load weighs 5,000 pounds. The building is 110 feet high. The load is 15 feet tall at the anchor points and you are using 15 foot slings. Show your calculations below.
How far in on the roof can you set the center of the load? feet
What is the boom angle? degrees
What is the offset? degrees
What length extension? feet
Weights: Load: pounds10 ton headache ball: pounds90 ton hook block: poundsAux. boom head: poundsSlings: pounds
Total load weight: pounds
15. Field policy states that, except in an emergency, crane operations will cease when working around wells when:
the wind speed is: mph or greater
the ambient temperature is: °F or colder
16. According to field policy, in order to operate a crane under emergency conditions (high winds and/or low ambient temperatures), both the supervisor having the work done and the heavy equipment supervisor must agree to continue the crane operations.(True or False)
17. When the ambient temperature is below 0 °F, the crane must be derated 1% for each 1 degree below 0 °F.(True or False)
18. If the ambient temperature is -14 °F, you would derate the crane by: (Circle the correct answer)
A. Derating the load chart 14%B. Derating the load 14%C. Adding 14% to your load weight
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19. You are asked to lift a load weighing 60,000 pounds (including all lifting devices). The ambient temperature is -30 °F. The load needs to be set at a radius of 20 feet.
What weight listed in the manufacturer’s load chart would you use? pounds
What is the longest boom length allowed? feet
20. You are asked to lift a load weighing a total of 17,000 pounds (including all lifting devices) and set it near a well at a radius of 60 feet. The ambient temperature is -35 °F and you have emergency authorization to work.
Can this be done? (Yes or No)
If so, what is the boom length? feet
What is the boom angle? degrees
21.* When lifting on rubber, what is the maximum safe total load that can be lifted in a 360° arc at a 60 foot radius? pounds
What is the boom length? feet
What is the minimum angle? degrees
22.* What is the defined lifting area for lifting on rubber over the front?
23.* What is the largest load to be picked and carried on rubber over the side?
24.* It is NOT permissible to have the 33’ to 58’ teleboom installed while lifting on rubber at any time.(True or False)
25.* When swinging a load: (Circle the correct answer)
A. The radius may increaseB. The radius may decreaseC. The radius stays the same
26.* When lowering the boom, the radius: (Circle the correct answer)
A. IncreasesB. DecreasesC. Stays the same
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27. When traveling to and from job sites, the swing lock must be locked. (True or False)
28.* The angle given in parenthesis for specified loads on the load charts means: (Circle the correct answer)
A. The minimum boom angle permissible for the loadB. The loaded boom angleC. Both
29. Boom maximum lifts are determined by boom angle.(True or False)
30.* The crane must NOT be transported with the extension installed. (True or False)
31. The axle lockout system must be locked when: (Circle the correct answer)
A. the vehicle is in four wheel driveB. when making picks on rubberC. one wheel starts spinning
32.* For the drawing below, put an “X” on the line where you would start measuring the radius, and an “X” on the line where you would end measuring the radius.
Use Word 6.0c or later to
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33.* Feeling the outrigger lift 1 or 2 inches off the ground is the best way to determine the maximum lift capacity. (True or False)
34. With the teleboom extension installed and extended to 48 feet, and the main boom extended to its full length, what is the total length of main boom and teleboom combined? feet
35.* With the teleboom installed, retracted to 33 feet, and set at a 30° offset, what is the maximum permissible load with a minimum boom angle of 60°? pounds
36.* When using the teleboom extension at a 48 foot length, what is the maximum total load that you can set at a 70 foot radius?
pounds
37* You are asked to pick a valve that weighs 700 pounds and set it at a radius of 90 feet. Your crane is set up as follows:
90 ton hook block10 ton headache ballSwingaway teleboom installed at a 30° offset and extended to
58 feetAuxiliary boom head
Can you do this pick? (Yes or No)
If yes, what is the minimum boom angle? degrees
Auxiliary boom head: pounds90 ton hook block: poundsTeleboom: pounds10 ton headache ball: poundsSlings: poundsLoad: pounds
Total load: pounds
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38. You have the RT 990 set up as follows:
Aux. boom head90 ton sheave block on the main boom15 ton sheave block on the teleboomTeleboom installed and retracted to 33 feet
The load weighs 17,000 pounds and is to be set at a radius of 45 feet over the side.
Can this be done? (Yes or No)
What is the longest permissible boom length? feet
What is the boom angle? degrees
Auxiliary boom head: pounds90 ton hook block: poundsTeleboom installed and retracted: pounds15 ton sheave block: poundsSlings: poundsLoad: pounds
Total load: pounds
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