Mobile Crane Signals

What is the meaning of the below signal?

CSA Z150

Open clam

Close clam

Swing

Stop

Correct! Wrong!

What is a possible scenario when the crane is taking the weight of the load?

Decrease of radius

Nothing

Increase of radius

Correct! Wrong!

Who's perspective must the crane signal be given?

Operators

Signal persons

Riggers

Doesn't matter. As long as the swing signals are given by the directions East and West

Correct! Wrong!

What is the meaning of the below signal?

CSA Z150

Raise boom while swinging

Raise boom, lower load

Raise clam,, swing right

Lower boom, raise load

Correct! Wrong!

What is the meaning of the below signal?

CSA Z150

Lower load

Use main line

Lower boom

Lower clam

Correct! Wrong!

During lifts that require radio communication, if the signal person releases the microphone key what must the operator do?

Assume everything is fine, continue the lift

Pause the lift, and get out of the cab to check what the issue is

Stop the lift, wait for direction.

Correct! Wrong!

Each voice signal shall contain three elements given in the following order

Function and direction, distance and/or speed, function stop

Function start, direction up or down, direction left or right

Function to boom out or in, wind speed, release load

Order of functions must be: boom function, swing direction and finally load elevation

Correct! Wrong!

What is the meaning of the below signal?

CSA Z150

Raise load

Raise clam

Raise boom

Use whip/aux line

Correct! Wrong!

CSA Z150

Operators left track

Operators right track

Correct! Wrong!

What is the meaning of the below signal

CSA Z150

Open Clam

Swing

Stop

Close Clam

Correct! Wrong!

Can the following signal be given to a lattice boom crane?

CSA Z150

Yes

No

Correct! Wrong!

Who's responsibilty is it to ensure that the load does not pass over other workers?

Signal person

Rigger

Operator

Foreman

Correct! Wrong!

What is the result of the following signal?

CSA Z150

Increase of radius while load lowers

Increase of radius while the load raises

Decrease of radius while load lowers

Decrease of radius while load raises

Correct! Wrong!

Placing a palm over/beside any signal instructs the operator to do what?

CSA Z150

Perform the function faster

Less than 6 inches remaining

Perform the function slower

Correct! Wrong!

What is the meaning of the below signal?

CSA Z150

Raise boom

Raise load

Use main line

Use aux line

Correct! Wrong!

What is the meaning of the below signal?

CSA Z150

Lower boom

Swing right

Lower load

Raise load

Correct! Wrong!

What is the meaning of the below signal?

CSA Z150

Use main line

Hold

Lunch

Use whip/aux line

Correct! Wrong!

The use of multiple relay signal persons adds what risk to the lift?

There is no added risk

Delayed rection time to a stop signal

Code states that up to three relay signal persons are acceptable

Correct! Wrong!

Mobile Crane Signals

What is the meaning of the below signal?

What is a possible scenario when the crane is taking the weight of the load?

Who's perspective must the crane signal be given?

What is the meaning of the below signal?

What is the meaning of the below signal?

During lifts that require radio communication, if the signal person releases the microphone key what must the operator do?

Each voice signal shall contain three elements given in the following order

What is the meaning of the below signal?

Who can give a stop signal?

What does the below signal mean?

Which worker gives the magnet is disconnected signal?

What is the meaning of the below signal?

What is the meaning of the below signal?

What does the below signal mean?

What must the operator do when given this signal?

Viewed from the operators standpoint, which track will the operator hold/lock?

What is the meaning of the below signal

Can the following signal be given to a lattice boom crane?

Who's responsibilty is it to ensure that the load does not pass over other workers?

What is the result of the following signal?

Placing a palm over/beside any signal instructs the operator to do what?

What is the meaning of the below signal?

What is the meaning of the below signal?

What is the meaning of the below signal?

The use of multiple relay signal persons adds what risk to the lift?

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