Theory test according to ISO standards

WHO MAKES THE FINAL DECISION FOR A LIFTING OPERATION?

The craneoperator (as he/she is the one who deciding when to lift or not)
The slinger (as he/she is the one who connects all loads to the crane with the proper lifting gear)
Both above (as it is teamwork to create safety all the time)

AN ALL TERRAIN CRANE CAN BE CONTROLLED IN DIFFERENT WAYS. WHAT IS IT CALLED THE STEERING MODE, SIDE MOVEMENT SHOWN IN THE PICTURE?

Cross Control
Crab steering
Diagonal Control

LIFTING WITH HANGING LOAD MUST NOT OCCUR IN TOO HIGH WIND SPEED. WHO DETERMINES IF THE WIND SPEED IS TOO HIGH?

Swedish Metrological Institute (SMHI)
Site manager
You as craneoperator but always based on what the manufacturer specifies in the manual

WHAT DETERMENS THE LOAD TORQUE, THE FORCE THAT WANTS TO TIP THE CRANE?

Load weight x working radius
Load weight x boom length
Boom angle x lift radius

YOU AS DRIVER ARE RESPONSIBLE FOR:

That wires ropes, yokes and other lifting equipment are not damaged
Just for the lifting operation itself and not anything about the equipment. Thats up to the slinger
That ropes, yoke and other lifting devices are purchased from a serious supplier

WHO CAN INFORM YOU ABOUT THE GROUNDS LOAD BEARING CAPACITY ON WHICH TO SET UP YOUR MOBILE CRANE?

The crane rental company
Site manager
It does not matter because it is not your responsibility

WHICH OF THE FOLLOWING LIFTING IS PROHIBITED?

To carry out lifting without the outrigger lowered
To lift a load when the crane tilts more than 5 °
Moving a mobile crane with hanging load

WHAT IS IMPORTANT TO KEEP IN MIND WHEN ROUTING BY RADIO COMMUNICATION?

To give short and definite orders, specify distance and keep open channel throughout the lifting operation
To talk as little as possible so as not to interfere with other radio traffic
To always use headset

WHICH OF THE FOLLOWING LIFTING WORK IS ABSOLUTELY PROHIBITED?

To perform a lift without the outriggers lowered
Trying to lift a load that is stuck
To move an object by moving the mobile crane / Carry load

A TOP DRIVING / HOIST LIMIT SWITCH (MARKED WITH YELLOW) SHOULD STOP…?

Hoisting, extending boom and lowering boom
Hoisting, extending boom and raising boom
All features

AN OVERLOAD SWITCH SHOULD STOP?

Hoist, extend boom and lowering boom
Hoisting, retracting boom and raising boom
All features

CAN YOU LEAVE THE MOBILE CRANE WITH A LOAD IN THE HOOK?

Yes, but the area under the load should be blocked off from access
No, most safe is to not leave any load hoisted in the hook when leaving the crane
Yes, but you have to make it as a safe area beneath it by putting up signs

TEMPORARY LIFTING WITH A HANGING PERSONELL BASKET MAY BE CARRIED OUT WITH A MOBILE CRANE IF THE BASKET IS INSPECTED TOGETHER WITH THE CRANE. THE TOTAL WEIGHT OF THE BASKET AND THE LOAD MUST NOT EXCEED:

25% of the crane's capacity
50% of the crane's capacity
75% of the crane's capacity

IN CASE OF TEMPORARY LIFTING OF PEOPLE WITH A CRANE, IT IS AN ABSOLUTE REQUIREMENT THAT:

at least one person in the basket has a professional certificate for mobile crane
the persons in the basket use personal safety harnest connected to the basket
the people in the basket have taken a special safety course

WHICH LIFTING GEAR SHOULD YOU USE WHEN LIFTING A PERSON IN A PERSONNEL BASKET?

Any CE-marked straps
Synthetic fibre straps to reduce the risk of electric shock
Chain slings or wire rope straps are the only option due to the fact that they withstand more wear

WHEN STATING THE LIFTING CAPACITY IN THE LIFTING CHART BELOW, THE FOLLOWING HAS NOT BEEN TAKEN INTO ACCOUNT:

how much the lifting gear, the lifting hook and the wire weight
how long the boom has been extended out
that the boom bends due to the weight of the load

YOU WILL LIFT 15 TONS, 9 M FROM THE CRANE’S CENTER OF ROTATION. HOW LONG BOOM SHOULD YOU EXTEND OUT?

Between 9 – 11.4 m
Between 16.7 – 22 m
Between 22 – 27.3 m

WHAT MAXIMUM WORKING HEIGHT (HOOK HEIGHT) IS ACHIEVED WITH A STRAIGHT 8.6 M LONG JIB, AT A WORKING RADIUS OF 20 M?

About 32 meters
About 38 meters
About 40 meters

USE LIFT CHART AND LIFT TABLES IN PICTURE. HOW MUCH CAN YOU LIFT WITH THE BOOM EXTENDED 32,6 M WITH 9.2 LONG JIB, ANGLED 40 °, AT 20 M WORKING RADIUS?

apx 1.9 tons
apx 2.5 tons
apx 3,5 tons

USE LIFT CHARTS AND LIFT TABLE. HOW MUCH CAN YOU FULLY LIFT WITH THE BOOM FULLY EXTENDED, THE JIB 9.2 M MOUNTED AND ANGLED 60 ° AND THE OUTRIGGERS FULLY EXTENDED?

1.6 tonnes at 34 m working radius
2.3 tons at 24 m working radius
2.7 tonnes at 22 m working radius

IF THE CRANES ANEMOMTETER IS SHOWING 4 M/S BEFORE LUNCH AND AT THE END OF THE DAYS SHOWS 8 M/S. THEN THE WIND PRESSURE HAS INCREESED BYA A FACTOR OF…?

1 (the pressure is the same).
2 (the pressure is twice as high)
4 (the pressure is four times as high)

CAN TWO CRANES BE USED TO LIFT A SINGLE LOAD, A SO-CALLED “JOINT LIFT” / MULTIPLE LIFT ?

No
Yes, but you or an appointed person must always make a specific qualified risk assessment
Yes, but the cranes must be identical in order for them to be equally loaded

THE SAFE LOAD INDICATOR IS GREEN UP TO ____ % OF THE CRANES MAX CAPACITY.

75% of max load
97,5 % of max load
90 % of max load

HOW OFTEN MUST A MOBILE CRANE BE INSPECTED BY AN ACCREDITED COMPANY?

Every 12 months
Every 24 months
Every 36 months

WHEN CONNECTING LOADS THERE IS A LIMIT FOR THE MAXIMUM BETA ANGLE – WHATSTHE MAXIMUM ALLOWED?

Beta angle 45 degrees
Beta angle max 60 degrees
Beta angle max 75 degrees

CAN A MACHINE BECOME ELECTRIFIED WITHOUT COMING INTO DIRECT CONTACT WITH A HIGH VOLTAGE POWER LINE?

Yes, if you get to close it could result in a electrical arc
No
Yes, but only when it rains

IF A ACTIVE POWER CABLE FALLS ON YOUR MACHINE AND STAYS ON THE MACHINE, YOU SHOULD:

Stay in the driver's seat if possible due to other hazards.
Lean a metal rod towards the machine so that the current is guided through it
Jump out of the driver cabin as soon as possible

SAFETY MARGINS DUE TO STABILITY. WHEN A MOBILE CRANE’S LOADINDICATOR SIGNALS 100% ITS FOR YOUR SAFTEY. BUT WHAT DOES THAT 100% REALLY MEAN? IT MEANS THAT THE CRANE STILL HAVE ___ % OF CAPACITY LEFT UNTIL IT TILTS OVER

10 %
25 %
33 %

SEE THE FIGURE TO THE RIGHT. WHAT NUMBERS CORRESPOND TO THE MOBILE CRANE’S HOIST LIMIT SWITCH, OUTRIGGER BEAM, OUTRIGGER CYLINDER, OUTRIGGER PADS AND BOOM ROOT?

1-2-3-4-5
5-4-3-2-1
3-1-5-2-4

SEE THE FIGURE TO THE RIGHT. WHAT NUMBERS CORRESPOND TO THE MOBILE CRANE’S JIB, COUNTERWEIGHT, MAIN HOIST, AUXILIARY HOIST AND HOOK BLOCK?

1-2-3-4-5
5-4-3-2-1
3-1-5-2-4

MODERN MACHINES REQUIRE PROPER SERVICE AND LUBRICANT. ITS DONE IN SPECIFIED INTEVALS. WHERE ARE THOSE INTERVALS TO BE FOUND:

In specifications from the owner
in the cranes manual
In general rulebooks

THE MOST COMMON REASON FOR WATER BEING COLLECTED IN THE FUEL TANK IN NORDIC CLIMATES IS THAT:

Condensation is formed on the inside of the tank as the outdoor temperature changes
Water leaks into it when it rains
The water is already in the fuel already when it comes from the fuel supplier

IF YOUR MOBILE CRANE IS EQUIPPED WITH A CENTRAL LUBRICATION SYSTEM:

You can ignore the responsibility for lubricating the crane
You must make sure that grease comes out to the different lubrication points and lubricate the parts that are not lubricated automatically
You just need to keep track of error message on the central lubrication control panel

AFTER A DAY’S DRIVING, ITS GOOD TO LET THE ENGINE IDLE FOR A FEW MINUTES TO:

Make the liquid level in the various components of the machine stabilize
Allow moving components such as the turbo and hydraulic systems to unwind and cool down
Make the machine easier to start the next day

WHAT DOES THIS SIGNAL MEAN?

Extend the boom
Quickly stop the any crane movement
The work ends

WHAT DOES THIS SIGNAL MEAN?

Good job
Raise the boom
Hoist

WHAT DOES THIS SIGNAL MEAN?

Move the crane
Increase the speed
Extend boom

IF SOMEONE OTHER THAN THE SIGNAL PERSON GIVES A STOP SIGNAL, YOU SHOULD:

Don't worry about the stop signal. Only follow signs from the signal person.
Don’t worry about the stop signal, unless it is determined beforehand that signals from other than the signal man should apply.
Stop the all movements with the crane

IS SOMETING WRONG IN THE PICTURE BELOW? IT IS SOMETING THAT I PROHIBITED IN THE REGULATIONS AFS 2006:6?

The lift is with open hooks. Open hooks are prohibited
The load is not secured.
There is nothing wrong with this lift- it looks all ok

THE CONCRETE SLAB YOU WILL SET UP THE CRANE ON CAN WITHSTAND A GROUND PRESSURE OF 5 KG/CM2 . YOUR BASEPLATES ARE 70 X 70 CM. YOUR MAXIMUM SUPPORT LEG PRESSURE IS 20 TONNES PER PLATE. WILL THE CONCRETE BE ABLE TO SUPPORT YOUR CRANE?

Yes, concrete is a strong material so it should be possible!
No, the pressure is above 5 kg / cm2.
Yes, the pressure is below 5 kg / cm 2.

WHAT KIND OF DOCUMENTATION ARE MANDATORY TO HAVE WITH YOU WHEN OPERATING A CRANE?

Insurance certificate, personal crane certificate, cranes manual
Personal crane certificate, personal operating permit (signed by the employer), crane manual
Crane manual, personal crane certificate

A LARGE HYDRAULIC HOSE HAS COME OFF YOUR CRANE AND A LOT OF OIL IS LEAKING. YOU SHUT OFF THE ENGINE DIRECT – BUT WHAT´S NEXT TO DO?

Alert the work site management right away. Then try to limit the leaking, clean up with your own equipment and alert the fire brigade.
Contact the Swedish Work Environment Authority and report an environmental incident at work.
Call your manager and order a new hose.

A SECURITY CHECK OF THE CRANE AND RIGGING HARDWARE MUST BE PERFORMED REGULARLY BY THE CRANEOPERATOR. HOW OFTEN?

As decided by the owner of the crane.
As a weekly routine
As a daily routine.

YOU WILL HELP A FEW BLACKSMITHS TO LIFT DIFFERENT STEEL STRUCTURES. THEY WANT YOU TO USE SOFT STRAPS / TEXTILE FIBER SLINGS. HOW DO YOU DO?

You do not lift steel with soft straps as they can break.
You must use wire or chain lifting gear as it is safest.
You may use soft straps as it reduces the risk of the load slipping, but its always necessary for you as operator to make a risk assessment on the specific task.

YOU HAVE HUNG A TWO-LEG CHAIN GEAR IN THE HOOKBLOCK AND YOU SEE THAT THE CHAINS HAVE DIFFERENT LENGTHS. WHICH IS THE MOST LIKELY CAUSE?

It is incorrectly manufactured and has one link more than the other.
One chain has been overloaded to stretch.
A link has been damaged in the past and someone has removed the damaged link.

WHY IS IT IMPORTANT TO HAVE GOOD ORDER ON YOUR LIFTING GEAR?

To keep track to that no equipments are damaged or gets damaged
To know if something has been stolen
Not to forget anything on the work site

WHAT IF THE HYDRAULIC HOSE FOR THE BOOM CYLINDER BREAKS IN THE MIDDLE OF A LIFT SO THAT THE CRANE LOSES HYDRAULIC PRESSURE?

It gets messy and I have to quickly turn off the engine
The boom lowers slowly to the ground thanks to the backflow valve slowing the outflow
The hoist drum runs freely and the load falls to the ground since the crane loses pressure

IT’S TIME TO LUBRICATE THE CRANE. DOES THE TELESCOPIC BOOM ALSO NEED TO BE LUBRICATED?

No, the boom has slides and does not need any special grease
Yes, the boom must be rolled or sprayed with a special boom grease and lubricated on the inside when specified
No, most cranes have a central lubrication system so no extra grease is needed

WHICH OF THE FOLLOWING IS THE MAX LOAD / WIDTH YOU CAN LIFT WITH THIS GEAR
?

Load 4,5 ton with 9 meters between eyebolts
Load 4,5 ton with 7 meters between eyebolts
Load 4,5 ton with 5 meters between eyebolts

A LIFTING GEAR WITH A KNOT ON IT IS PROHIBITED TO USE . BUT WHY? WHAT APPLIES FOR A TEXTILE FIBERSLING?

It reduces the lifting capacity by 25%
It reduces the lifting capacity but you can always make a proffessional assessment on its remaining capacity
It tihgtens the knot so hard that one can´t loosen it later on and the fibres are damaged permanently which is not visible from outside

WHICH OF THEESE CONDITIONS WILL DRAMATICALLY AFFECT THE VALUES ON ANY CRANE LOADCHARTS?

Improper outrigger setup
Change of radious
Both of the above

IF THE LIFTING WIRE ROPE HAS 5 % OF CORDS THAT ARE BROKEN, THE ROPE MUST:

Be repaired
Be lubricated
Be replaced

WHAT RISKS MIGHT ARISE IF YOU LOWER THE HOOK BLOCK ONTO THE GROUND?

The wire rope can become slack and can then wind incorrectly on the rope drum
There is a risk that the crane will fall over backwards
There is no risk rather then some dirt comes into the inside of hookblock

WINTER CAN CAUSE PROBLEMS WHEN SETTING UP A MOBILE CRANE. HOW?

The outrigger pads and the load may freeze stuck on the ground when working around zero degrees celcius
The steel in the crane becomes brittle in cold weather
Loads containing water become heavier in the winter as the water freezes to ice

CAN A MOBILE CRANE BE MOVED WITH THE BOOM RAISED?

No
Yes, if you follow the manufacturer's instructions
Yes, if you drive carefully

YOU LIFT A CONTAINER WITH A 4-LEGGED CHAIN GEAR. HOW MANY LEGS DO YOU CALCULATE WILL CARRY THE LOAD?

Two
Three
Four

YOU USE A YELLOW ROUND SLING. YOU HAVE CONNECTED IT WITH A “NOOSE” (CHOKED) AROUND A POST. HOW MUCH WEIGHT CAN THIS SLING HANDLE?

About 1.6 tons
Approximately 2.4 tons
About 3 tons

WHAT FUNCTION DOES A LIFTING YOKE/SPREADER FRAME HAVE?

To protect the load and avoid side forces
To minimize the risk of load sway
As a carrier for water buckets

YOU, AS A CRANE OPERATOR, SEE THAT YOUR SLINGER IS RIGGING THE LOAD INCORRECTLY. WHAT DO YOU DO?

Stop lifting and inform the slinger of the correct way to connect the load and I may also inform the lift director, because I'm in charge of the lift
This is not my responsibility. The lift director is responsible for the lifting.
I don't usually look closely at the rigging crew. I assume they know their job.

YOU WILL LIFT A WALL BLOCK OF CONCRETE THAT IS LINED UP ON THE FLATBED OF A TRUCK. THE BLOCK WEIGHS 9 TONS AND IS 7 METERS LONG. THE DISTANCE BETWEEN THE LIFTING POINTS IS 6 METERS. YOUR CHAIN SLINGS ARE 6 METERS LONG AND, ACCORDING TO THE TAG, CAN BE LOADED WITH 8 TONNES PER CHAIN DURING A LIFT STRAIGHT UP. DO THE CHAINS HOLD FOR THIS LIFT?

Yes. The angle of inclination is 60 ° and each chain may be loaded with 5.6 tonnes.
No. The beta angle is way over 45 ° and each chain can only be loaded with 4 tonnes.
Yes. The beta angle is below 45 ° and each chain may then be loaded with 5.6 tonnes.

Theory test according to ISO standards

Theory test according to ISO standards

Prov Sammanfattning

Information

Resultat

Resultat

Kategorier

1. Fråga

2. Fråga

3. Fråga

4. Fråga

5. Fråga

6. Fråga

7. Fråga

8. Fråga

9. Fråga

10. Fråga

11. Fråga

12. Fråga

13. Fråga

14. Fråga

15. Fråga

16. Fråga

17. Fråga

18. Fråga

19. Fråga

20. Fråga

21. Fråga

22. Fråga

23. Fråga

24. Fråga

25. Fråga

26. Fråga

27. Fråga

28. Fråga

29. Fråga

30. Fråga

31. Fråga

32. Fråga

33. Fråga

34. Fråga

35. Fråga

36. Fråga

37. Fråga

38. Fråga

39. Fråga

40. Fråga

41. Fråga

42. Fråga

43. Fråga

44. Fråga

45. Fråga

46. Fråga

47. Fråga

48. Fråga

49. Fråga

50. Fråga

51. Fråga

52. Fråga

53. Fråga

54. Fråga

55. Fråga

56. Fråga

57. Fråga

58. Fråga

59. Fråga

60. Fråga