1-5 Ton crane

Question 1

Telescopic boom cranes manufactured after February 28, 1992 must be equipped with a device which prevents damage from contact between the traveling block/ball and the boom tip this device is called what?

Answer 1

Anti 2 blocking device

Question 2

According to OSHA accessible areas of an operating crane must always be barricaded within?

Answer 2

The swing radius of the rear of the rotating substructure

Question 3

When working near powerlines when is a single person required?

Answer 3

When the crane is within a booms length of the prohibited zone

Question 4

A pre-lift meeting is an operational requirement for a suspended personal platform true or false?

Answer 4

True

Question 5

What prohibits the boom from falling down on a hydraulic crane in the event of a hydraulic line rupture?

Answer 5

Load holding valve 

Question 6

Only use what? grade chain for overhead lifting.

Answer 6

Alloy grade 8/80 or 10/100

Question 7

To determine the necessary parts of line and operator would need to divide the suspended load by either the SWL/safe working load for the PLP/permissible line pull true or false?

Answer 7

True

Question 8

SWL/safe working load of a cranes wire rope is 4000 pounds what is the safe working load of four parts of line?

Answer 8

16,000

Question 9

When working on outriggers the only time they should be less than fully extended is when?

Answer 9

When there is a load chart for this configuration

Question 10

An A/D director is?

Answer 10

A competent/qualified person,

The sole person incharge of Assembly and disassembly of the crane,

The sole person responsible for overseeing operations regarding erecting and dismantling of tower cranes 

Question 11

The capacity of a choker hitch is what? percent of a vertical swing hitch.

Answer 11

70-80%

Question 12

What is the removal criteria for IWRC running wire rope?

Answer 12

6 randomly distributed broken wires and one lay or 3 broken wires in one strand in one lay

Question 13

Significant distortion of the wire rope structure such as, kinking, crushing, birdcages, understranding, core failure, or core protrusion are what?

Answer 13

Category 1 apparent deficiancies

Question 14

How does the operator verify the LMI’s Bloom length or load radius reading?

Answer 14

Actual measurement

Question 15

What does LM I stand for?

Answer 15

Load moment indicator

Question 16

A four legged steel bridal sling has how much capacity increase of a 3 legged steel bridal sling ?

Answer 16

No increase

Question 17

When the number of wraps on the drum increase, what happens?

Answer 17

Permissible line pull may decrease

Question 18

What is the ANSI wear criteria standard for taking wire rope out of service

Answer 18

Metal loss of 1/3 of the diameter of the outside

Question 19

When an operator arrives on a job site and the crane is already erected how would he test the auxiliary and main hoist brakes

Answer 19

Lift the load slightly off the ground, apply the brakes, see if they hold

Question 20

Blocking under outrigger stabilizers must be sufficient to what?

Answer 20

Sustain the entire weight of the crane and it’s Maximum Load 

Question 21

The term upperworks refers to what part of the crane

Answer 21

Above the turntable

Question 22

The removal criteria for rotation resistant wire rope is what?

Answer 22

2 randomly distributed broken wires in 6 rope diameters or 4 randomly distributed broken wires in 30 rope diameters

Question 23

When using cranes of different capacities in a two crane pick, the crane with the larger net capacity should what?

Answer 23

Should be hooked at a distance closer to the loads center of gravity

Question 24

A positive acting anti-two block device is an operational requirement for suspended personnel platform’s true or false?

Answer 24

True

Question 25

Electrocution warning signs should be posted where?

Answer 25

In the cab in view of the operator, and at least two on the outside of the equipment

Question 26

The table a minimum clearance distance during operation of a crane in vicinity of a 200Kv powerline is what?

Answer 26

15ft

Question 27

The removal criteria for a sling replacement is what?

Answer 27

10 randomly distributed wires in one rope lay or five broken wires in one strand in one rope lay

Question 28

On duty cycle operations such as swinging concrete, steel erection, and magnet work, most crane manufacturers require a crane load chart capacity to be what?

Answer 28

To be reduced by 20%

Question 29

The proper way to calibrate a boom angle indicator is what?

Answer 29

Have the machine on level ground, using a level, place the boom in a horizontal position and set the indicator to 0°

Question 30

A signal person must have an understanding of what?

Answer 30

Equipment operations Crane dynamics involved in swinging and stopping loads Boom deflection

Question 31

When the boom handle is released to its center position, which action should be expected?

Answer 31

The boom hoist will be held stationary

Question 32

The WLL/working load limit at the bottom of a sorting hook is 7 1/2 tons when fully engaged, and the sling angle is less than 45°. If tip loading occurs due to a sling angle greater than 45° the WLL/weight load limit will be what?

Answer 32

2 tons

Question 33

When performing a multiple crane lift, It is important for the operator to understand what?

Answer 33

The weight may increase if one crane lands the load

Question 34

A trual lift of what % of the platform capacity is an operational requirment for suspended personal platforms.

Answer 34

125%

Question 35

What is encroachment?

Answer 35

When any part of the load, load line, or rigging reaches the minimum clearance distance of powerlines.

Question 36

The correct procedure to follow if the operator of a crane comes in contact with an energized power is to what?

Answer 36

Remain inside the cab unless there is danger of fire, explosion, or other emergency that would force you to leave the cab

Question 37

What is the maximum included angle for a shackle?

Answer 37

120°

Question 38

Most crane manufacturers reduce load capacity for duty cycle operations because?

Answer 38

Side loading forces may occur

Question 39

What is the maximum included angle for hooks?

Answer 39

90°

Question 40

In a range diagram boom length and bloom angle can be used to determine what?

Answer 40

Load radius

Question 41

A Crane’s ground pressure can approach a weight that is?

Answer 41

100% of the weight of the crane and it’s suspended load

Question 42

What is ASME B30.10’s rejection criteria for hoist hooks

Answer 42

Any distortion causing an increase of throat opening of 5%, not to exceed a 1/4”

Question 43

Where is the best location for leveling a crane

Answer 43

Upperworks

Question 44

What is the D/d ratio

Answer 44

The diameter of the wire rope(d), compared to what it goes around(D)

Question 45

What is the purpose of placing mats or cribbing under the outrigger floats?

Answer 45

To distribute the downward force of the float over a larger area

Question 46

What is the best procedure to follow when underground utilities may be present?

Answer 46

Contact the local utility company

Question 47

What is the proper procedure when using an insulating link for boot near powerlines

Answer 47

Be sure to maintain the correct allowable distance from the lines

Question 48

You should always have at least how many wraps on a hoist drum according to ANSI and OSHA?

Answer 48

2

Question 49

What is cabling?

Answer 49

When the traveling block has turned 90° from its neutral position, entangling the hoist lines

Question 50

What is not a good location for crane set up?

Answer 50

Above utilitys

Question 51

0-50Kv

Answer 51

10ft

Question 52

Over 50-200Kv

Answer 52

15ft

Question 53

Over 200-350Kv

Answer 53

20ft

Question 54

Over 350-500 Kv

Answer 54

25ft

Question 55

Over 500-750Kv

Answer 55

35ft

Question 56

Over 750-1000Kv

Answer 56

45ft

Question 57

Over 1000Kv

Answer 57

Consult utility owner

Question 58

What is net capacity?

Answer 58

Gross capacity minus deductions

Question 59

What does IWRC stand for?

Answer 59

Independent Wire Rope Core

Question 60

What does PS stand for?

Answer 60

Plow Steel

Question 61

Out riggers must be fully extended unless?

Answer 61

There is a load chart for the situation

Question 62

Blocking under outrigger floats should be made with what?

Answer 62

Douglas Fir or construction grade equivalent

Question 63

The Crane should have a minimum clearance of what? 360° around it’s swinging radius

Answer 63

2ft

Question 64

90 degree sling angle

Answer 64

1.0 Load angle factor

Question 65

60 degree sling angle

Answer 65

1.155 load angle factor

Question 66

50 degree sling angle

Answer 66

1.305 load angle factor

Question 67

45 degree sling angle

Answer 67

1.414 load angle factor

Question 68

30 degree sling angle

Answer 68

2.0 load angle factor