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NCCCO Signalperson study materials
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NCCCO Signalperson practice questions

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First 50 of 200 questions. Each one lists the choices, the correct answer, and an explanation. The checker at the top of this page saves progress in this browser when it is available.

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Question 1Hand Signals

Which hand signal directs the operator to stop the crane?

  1. Arm raised overhead with the fist clenched, moved in a circle
  2. Arm extended downward with the forefinger pointing down, hand circling
  3. Both arms extended horizontally with the palms down, moved back and forth
  4. Arm extended horizontally with the palm down, moved back and forth Correct answer.

Explanation

The stop signal is given with one arm extended horizontally, palm down, moving the arm back and forth in front of the body. It is a one-arm signal and is distinctly different from the two-arm emergency stop signal.

Question 2Hand Signals

Which signal tells the operator to stop immediately because of an emergency?

  1. One arm extended horizontally with the palm down, moved back and forth
  2. Arm extended forward with the hand open, making a pushing motion
  3. Both arms extended, palms down, moved back and forth Correct answer.
  4. Hands clasped together in front of the body

Explanation

Emergency stop is given with both arms extended horizontally, palms down, moved back and forth. Using both arms distinguishes it from the ordinary one-arm stop signal so the operator recognizes the urgency.

Question 3Hand Signals

A signalperson extends an arm horizontally with the palm up, forefinger pointing up, and moves the hand in small horizontal circles. What is being signaled?

  1. Arm extended, fingers closed, thumb pointing up
  2. Both fists in front of the body, thumbs pointing outward
  3. Arm extended, palm up, forefinger up, hand circling Correct answer.
  4. Arm extended overhead, palm open, held steady

Explanation

Hoisting the load is signaled with the arm extended, palm up, forefinger pointing up, while the hand makes small horizontal circles. The upward forefinger indicates raising the load, while a downward forefinger would indicate lowering it.

Question 4Hand Signals

Which hand signal instructs the operator to lower the load?

  1. Both arms extended downward, fists closed, moved in circles
  2. Arm extended, thumb pointing down, fingers flexing in and out
  3. Arm extended, palm down, moved back and forth
  4. Arm extended downward, forefinger down, hand circling Correct answer.

Explanation

Lowering the load uses the same small circular hand motion as hoisting, but with the arm extended downward and the forefinger pointing down. The direction of the forefinger tells the operator which way the load should move.

Question 5Hand Signals

How does the signalperson tell the operator to swing (turn) the boom?

  1. Points the finger in the direction the boom should swing Correct answer.
  2. Moves a clenched fist in a circle above the head
  3. Taps the head with a fist and then points
  4. Extends both arms sideways and rotates the wrists

Explanation

Swing is signaled by pointing the finger in the direction the boom should travel. The operator swings the boom toward the pointing finger, so the signalperson must point the direction of the desired movement.

Question 6Hand Signals

The signalperson clasps both hands together in front of the body. What does this signal mean?

  1. Stop the crane immediately
  2. Lower the boom and raise the load
  3. Hoist the load slowly
  4. Lock or hold all motions (dog everything) Correct answer.

Explanation

Clasping the hands in front of the body is the dog everything signal, which tells the operator to lock or hold all crane motions. It is often used to secure a suspended load or to hold position before the next move.

Question 7Hand Signals

A signalperson holds an arm extended horizontally with the fingers closed and the thumb pointing upward. What does this signal mean?

  1. Extend the boom
  2. Raise the boom Correct answer.
  3. Lower the boom
  4. Retract the boom

Explanation

An arm extended horizontally with fingers closed and the thumb pointing up signals raise the boom. The thumb gives the direction of boom movement, so a downward thumb would mean lower the boom.

Question 8Hand Signals

A signalperson holds an arm extended horizontally with the fingers closed and the thumb pointing downward. What does this signal mean?

  1. Raise the boom and lower the load
  2. Dog everything
  3. Extend the boom
  4. Lower the boom Correct answer.

Explanation

With the fingers closed and the thumb pointing down, the signal means lower the boom. The thumb indicates the direction of boom travel while the closed fingers distinguish it from the combined boom-and-load signals.

Question 9Hand Signals

The signalperson taps the top of the head with a fist and then gives a hoist signal. What does this direct the operator to do?

  1. Hold the load without moving it
  2. Raise the boom instead of hoisting
  3. Use the main hoist for the next signal Correct answer.
  4. Use the whip line for the next signal

Explanation

Tapping the head with a fist designates the main hoist, and the regular signal that follows applies to that hoist. The head tap is a qualifying signal and does not by itself move the load.

Question 10Hand Signals

The signalperson taps one elbow with the other hand and then gives a hoist signal. What does this direct the operator to do?

  1. Stop hoisting and hold the load
  2. Use the whip line for the next signal Correct answer.
  3. Raise the boom with the load
  4. Use the main hoist for the next signal

Explanation

Tapping the elbow designates the auxiliary hoist, commonly called the whip line, and the signal that follows applies to it. The head tap performs the same function for the main hoist.

Question 11Hand Signals

The signalperson gives a hoist signal with one hand while the other hand is held motionless in front of it. What does this mean?

  1. Stop the motion immediately
  2. Hoist the load at normal speed
  3. Hold the load with both hands
  4. Perform the motion slowly Correct answer.

Explanation

Holding one hand motionless in front of the hand giving the motion signal modifies that signal to mean the motion should be performed slowly. The same modification can be applied to hoisting, booming, swinging, or traveling.

Question 12Hand Signals

The signalperson extends an arm horizontally with the thumb up and fingers closed, then flexes the fingers in and out. What does this signal mean?

  1. Lower the load only
  2. Lower the boom and raise the load
  3. Raise the boom without moving the load
  4. Raise the boom and lower the load Correct answer.

Explanation

The thumb-up position calls for raising the boom, and the flexing fingers call for lowering the load at the same time. This combined signal is used to keep a load level as the boom angle changes.

Question 13Hand Signals

The signalperson extends an arm horizontally with the thumb down and fingers closed, then flexes the fingers in and out. What does this signal mean?

  1. Raise the boom and lower the load
  2. Lower the boom and raise the load Correct answer.
  3. Lower the load with the whip line
  4. Lower the boom without moving the load

Explanation

The thumb-down position calls for lowering the boom, and the flexing fingers call for raising the load at the same time. It is the counterpart of the thumb-up version used to keep a load level.

Question 14Hand Signals

The signalperson holds both fists in front of the body with the thumbs pointing outward. What does this signal mean?

  1. Travel the crane forward
  2. Extend the boom Correct answer.
  3. Raise the boom and lower the load
  4. Retract the boom

Explanation

Both fists in front of the body with the thumbs pointing outward signal the boom to be extended, or telescoped out. The outward direction of the thumbs shows the boom sections moving apart.

Question 15Hand Signals

The signalperson holds both fists in front of the body with the thumbs pointing toward each other. What does this signal mean?

  1. Extend the boom
  2. Dog everything
  3. Retract the boom Correct answer.
  4. Swing the boom left

Explanation

Both fists in front of the body with the thumbs pointing toward each other signal the boom to be retracted, or telescoped in. The inward thumbs show the boom sections coming together.

Question 16Hand Signals

The signalperson extends an arm forward with the hand open and slightly raised and makes a pushing motion in the direction of travel. What does this signal the operator to do?

  1. Travel the crane in the direction of the push Correct answer.
  2. Stop all crane motion
  3. Hoist the load at slow speed
  4. Swing the boom in the direction of the push

Explanation

The travel signal is an arm extended forward with the hand open and slightly raised, pushing in the direction of travel. It directs movement of the crane itself rather than movement of the boom or hoist line.

Question 17Hand Signals

How does the signalperson signal a crawler crane to travel on both tracks?

  1. Pointing the index finger in the direction the crane should travel
  2. A pushing motion with one open hand
  3. Thumb up with fingers flexing in and out
  4. Both fists circling about each other in front of the body Correct answer.

Explanation

For a crawler crane traveling on both tracks, the signalperson makes circular motions with both fists about each other in front of the body to show the direction of travel. Traveling on only one track uses a different signal.

Question 18Hand Signals

Which describes the correct signal for traveling a crawler crane on one track only?

  1. Points the index finger in the direction the crane should travel
  2. Extends both arms forward with the thumbs pointing outward and fists closed
  3. Makes a circular motion with both fists in front of the body
  4. Raises a fist for the track to hold and travels the other track Correct answer.

Explanation

One-track travel is signaled by raising one fist to show which track stays locked while the other hand gives a travel signal for the opposite track. This lets the crane pivot or steer itself using a single track.

Question 19Hand Signals

The crew needs a crane motion that is not covered by any standard hand signal. What is the correct practice?

  1. Agree on and confirm the signal before the lift begins Correct answer.
  2. Stop work permanently until a standard signal is published
  3. Use only voice commands for the remainder of the shift
  4. Improvise a motion and let the operator interpret it as it is given

Explanation

When a needed motion has no standard signal, the signalperson and operator must agree on a specific signal and confirm that both understand it before lifting begins. Improvised or unplanned signals must never be used during a lift.

Question 20Hand Signals

A signalperson gives a hoist signal while another worker is simultaneously giving the operator a travel signal. What should the operator do?

  1. Stop all movement until the conflicting signals are resolved Correct answer.
  2. Follow the signalperson, who outranks the other worker
  3. Follow whichever signal was received last
  4. Continue the previous motion until a stop signal is given

Explanation

Only one person should direct the operator at a time. When conflicting signals are received, the operator stops all movement until the signals are clarified and a single signal source is established.

Question 21Hand Signals

For hoist, lower, swing, and travel commands, who is authorized to direct the operator?

  1. Any rigger working near the load
  2. Any worker who knows the standard hand signals
  3. Any crew member with a clear view of the load
  4. The designated signalperson Correct answer.

Explanation

Hoist, lower, swing, and travel commands must come from the designated signalperson so the operator has a single source of direction. Stop and emergency stop are exceptions, because anyone may give those signals.

Question 22Hand Signals

The operator cannot see the designated signalperson because the load blocks the view. What is the correct practice?

  1. The operator relies on radio and ignores all hand signals
  2. A relay signalperson passes the signals along the line of sight Correct answer.
  3. The signalperson moves underneath the suspended load
  4. The signalperson gives larger motions from the same position

Explanation

When the operator cannot see the designated signalperson, a relay signalperson is used to pass the signals along so the operator receives them as if from the designated signalperson. Crane work must not proceed without a clear line of sight to a signaler.

Question 23Hand Signals

During a boom-down movement the operator loses sight of the signalperson. What should the operator do?

  1. Stop the movement until communication is restored Correct answer.
  2. Continue and wait for the signalperson to reappear
  3. Lower the load to the ground as quickly as possible
  4. Continue the movement at a slower speed

Explanation

If the signalperson goes out of view during a movement, the operator must stop until communication is restored. Moving a crane or load without signals or sight of the signaler removes the ability to react to hazards.

Question 24Hand Signals

A signalperson taps one hand on the elbow and then gives a hoist signal. The operator should:

  1. Hold the load with the whip line locked
  2. Raise the boom without moving the load
  3. Raise the load using the main hoist
  4. Raise the load with the whip line Correct answer.

Explanation

The elbow tap identifies the auxiliary hoist, or whip line, and the hoist signal that follows applies to that hoist. A head tap would have designated the main hoist instead.

Question 25Hand Signals

A crane is booming down when a rigger who is not the designated signalperson gives the stop signal. What should the operator do?

  1. Stop the motion immediately Correct answer.
  2. Continue booming down until the signalperson repeats the signal
  3. Ask the rigger to repeat the signal before acting
  4. Complete the boom-down movement and then stop

Explanation

A stop signal may be given by anyone on the site, and the operator must obey it immediately regardless of who gave it. Work resumes only after the reason for the stop has been cleared with the designated signalperson.

Question 26Hand Signals

The signalperson extends one arm horizontally with the palm down and moves the arm back and forth. What does this signal mean?

  1. Emergency stop
  2. Swing
  3. Stop Correct answer.
  4. Move slowly

Explanation

The standard stop signal is one arm extended horizontally, palm down, moved back and forth. It tells the operator to stop the crane motion.

Question 27Hand Signals

Which hand signal is the emergency stop signal?

  1. Both arms extended horizontally, palms down, moved back and forth Correct answer.
  2. One arm extended horizontally, thumb pointing
  3. One arm extended downward, palm down
  4. Both fists held in front of the body

Explanation

The emergency stop signal uses both arms extended horizontally with palms down, moved back and forth. It is distinct from the one-arm stop signal.

Question 28Hand Signals

The signalperson extends an arm downward with the palm down and moves the hand downward. What does this signal mean?

  1. Lower the load Correct answer.
  2. Stop the crane
  3. Raise the load
  4. Swing the boom

Explanation

The lower signal is an arm extended downward, palm down, with a downward hand motion. It directs the operator to lower the load.

Question 29Hand Signals

The signalperson extends an arm horizontally with the fingers closed and the thumb pointing to one side. What does this signal mean?

  1. Lower the boom
  2. Swing in the direction the thumb points Correct answer.
  3. Travel forward
  4. Raise the boom

Explanation

The swing signal is an arm extended horizontally with fingers closed and the thumb pointing in the direction of swing. The operator swings the boom that way.

Question 30Hand Signals

The signalperson extends a hand with the palm down and moves it slowly in the direction of travel. What does this signal mean?

  1. Lower the boom
  2. Move slowly in that direction Correct answer.
  3. Stop immediately
  4. Hoist the load

Explanation

The move slowly signal is a slow hand motion in the desired direction. It tells the operator to make the movement at reduced speed.

Question 31Hand Signals

How should a signalperson give hand signals to the crane operator?

  1. Clearly and distinctly Correct answer.
  2. Only after the load moves
  3. Using only one finger
  4. As fast as possible

Explanation

Hand signals must be clear and distinct so the operator can recognize each command without confusion. Fast or unclear motions can be misread.

Question 32Hand Signals

How many signalpersons should direct the crane operator at one time?

  1. One designated signalperson Correct answer.
  2. Two, one on each side of the load
  3. One for each crane function
  4. As many as are available

Explanation

Only one designated signalperson should direct the operator at a time. Multiple signalers can create conflicting commands.

Question 33Hand Signals

Where should the signalperson stand when giving hand signals?

  1. Inside the crane cab
  2. Behind the operator
  3. Where the operator can clearly see the signals Correct answer.
  4. Directly under the load

Explanation

The signalperson must be positioned so the operator has a clear, unobstructed view of the hand signals. If the operator cannot see the signals, the movement should not proceed.

Question 34Hand Signals

When is the emergency stop signal used?

  1. When the boom should be raised
  2. When immediate stopping is needed to prevent injury or damage Correct answer.
  3. When the crane should travel
  4. When the load should move slowly

Explanation

The emergency stop signal is for an immediate hazard requiring all crane motion to stop at once. It is not a routine speed-control or travel signal.

Question 35Hand Signals

The signalperson gives a stop signal while the load is moving. What should the operator do?

  1. Stop the crane motion Correct answer.
  2. Continue until the load reaches the ground
  3. Finish the movement, then stop
  4. Wait for a second stop signal

Explanation

A stop signal requires the operator to stop the crane motion. The operator should not finish the movement or wait for a repeated signal.

Question 36Hand Signals

The signalperson needs to start a crane movement, but the operator is not looking toward the signalperson. What should the signalperson do?

  1. Give the signal anyway
  2. Move closer to the load
  3. Ask a bystander to shout the command
  4. Wait until the operator acknowledges visual contact Correct answer.

Explanation

Hand signals work only when the operator is watching. The signalperson should wait until visual contact is established before signaling a movement.

Question 37Hand Signals

When giving hand signals, the signalperson should generally do what?

  1. Stand behind the load
  2. Use only movements below the waist
  3. Turn away from the operator
  4. Face the operator and maintain visual contact Correct answer.

Explanation

The signalperson should face the operator and keep visual contact so the signals can be seen and understood. Turning away or hiding behind the load breaks communication.

Question 38Hand Signals

Before a lift begins, what should the signalperson and operator confirm?

  1. The color of the load
  2. The number of workers on site
  3. The hand signals to be used and their meanings Correct answer.
  4. The operator's break schedule

Explanation

A pre-lift review of the hand signals helps ensure both people interpret each command the same way. This reduces the risk of a misunderstood signal during the lift.

Question 39Hand Signals

If the operator does not understand a hand signal from the signalperson, what is the correct action?

  1. Stop and clarify the signal before proceeding Correct answer.
  2. Continue at slow speed
  3. Ignore the signal
  4. Ask another worker to guess

Explanation

An unclear signal must be resolved before the crane moves. The operator should stop and the signalperson should clarify the command.

Question 40Hand Signals

Two workers are giving the crane operator different hand signals at the same time. What should the operator do?

  1. Follow the nearest worker
  2. Follow the louder signal
  3. Stop until a single signalperson is established Correct answer.
  4. Follow both signals alternately

Explanation

Conflicting signals create uncertainty, so the operator should stop. Work should resume only when one designated signalperson is directing the crane.

Question 41Hand Signals

The signalperson cannot see the load or the load path during a movement. What should the signalperson do?

  1. Continue signaling from the same position
  2. Rely on the operator's view only
  3. Ask the operator to guess the path
  4. Stop the movement and reposition to a safe viewing point Correct answer.

Explanation

The signalperson needs to see the load and its path to direct the movement safely. If the view is blocked, the movement should stop and the signalperson should reposition.

Question 42Hand Signals

Which signal tells the operator to lower the load rather than lower the boom?

  1. Arm extended downward, palm down, hand moved downward Correct answer.
  2. Thumb pointing downward from a horizontal arm
  3. Both arms moved back and forth
  4. Arm extended forward with a pushing motion

Explanation

Lowering the load is signaled with an arm extended downward and a downward hand motion. Lowering the boom is signaled with a thumb pointing downward.

Question 43Hand Signals

Why are standard hand signals used on crane operations?

  1. To let each signalperson create personal signals
  2. To allow the crane to move faster
  3. To replace the need for a signalperson
  4. To reduce the chance of misinterpretation Correct answer.

Explanation

Standard signals give the operator and signalperson a common language, which reduces the chance of a command being misunderstood. Personal or improvised signals can be confusing.

Question 44Hand Signals

What should the signalperson do after giving an emergency stop signal?

  1. Immediately give a hoist signal
  2. Wait for the situation to be resolved before signaling again Correct answer.
  3. Walk away from the area
  4. Signal the operator to travel

Explanation

After an emergency stop, the crane should remain stopped until the hazard is addressed. The signalperson should not resume commands until it is safe and clear to do so.

Question 45Hand Signals

A stop signal is followed immediately by a hoist signal from the same signalperson. What should the operator do?

  1. Ignore both signals
  2. Move the load in either direction
  3. Obey the hoist signal first
  4. Stop and wait for a clear, separate command Correct answer.

Explanation

The stop signal must be completed before any new movement command is followed. The operator should stop and receive a clear command before hoisting.

Question 46Hand Signals

During a lift, the signalperson becomes unable to see the operator. What should the operator do?

  1. Continue the movement slowly
  2. Complete the movement from memory
  3. Signal another worker to take over
  4. Stop until visual communication is restored Correct answer.

Explanation

Hand signal communication depends on the operator and signalperson seeing each other. If that contact is lost, the movement should stop until it is restored.

Question 47Hand Signals

What does the emergency stop signal require the operator to do?

  1. Return the boom to its previous position
  2. Lower the load first
  3. Stop all crane motion immediately Correct answer.
  4. Stop only the swing motion

Explanation

The emergency stop signal is an immediate command to stop all crane motion. The operator should not continue any function after receiving it.

Question 48Hand Signals

Hand signal communication breaks down during a lift. What is the safest action?

  1. Continue using guessed signals
  2. Increase crane speed to finish quickly
  3. Pause the lift until communication is restored Correct answer.
  4. Rely on bystanders' gestures

Explanation

When communication is unreliable, the lift should pause. Resuming without clear signals risks an uncontrolled or unintended movement.

Question 49Hand Signals

What is the main purpose of a signalperson's hand signals?

  1. To communicate crane movements to the operator Correct answer.
  2. To mark the load's weight
  3. To direct the truck drivers
  4. To replace the rigging plan

Explanation

The signalperson uses hand signals to tell the operator which crane motion is needed. Clear communication is the core of the role.

Question 50Hand Signals

When giving a hand signal, why should the signalperson keep the arm and hand in the operator's clear view?

  1. So the operator can see and correctly interpret the command Correct answer.
  2. So the load moves faster
  3. So other workers can copy the signal
  4. So the signal can be photographed

Explanation

A hand signal only works if the operator can see it clearly. Keeping the arm and hand visible helps prevent a misread command.