120101b-kB Climbing Lifting Load Moving and Materials Handling Part B

Question 1

Question: Who is ultimately responsible for ensuring the integrity of the rigging equipment prior to each shift?

a) The employee
b) The employer
c) The supervisor
d) A consultant

Answer 1

Answer: b) The employer

Explanation: This highlights the responsibility of the employer to ensure that all rigging equipment is safe and reliable before being used in any shift.

Question 2

Question: What must always be present on a sling before it is used?

a) A protective coating
b) A label
c) An expiry date
d) A thimble

Answer 2

Answer: b) A label
Explanation: The presence of a label on a sling is critical as it usually contains important information about the sling, such as its capacity and safety instructions.

Question 3

Question: What is the minimum ultimate load ratio for a chain?

a) 1:1
b) 2:1
c) 4:1
d) 5:1

Answer 3

Answer: c) 4:1
Explanation: This ratio indicates the minimum standard for the strength of a chain, ensuring it can handle at least four times the maximum intended load.

Question 4

Question: List three (3) things synthetic web slings should be inspected for.

Answer 4

Answer:
a) Missing or unreadable tags
b) Visible signs of melting, charring, cuts, tears, or chemical damage
c) Signs of excessive wear or fraying

Explanation: These are critical inspection points to ensure the safety and integrity of synthetic web slings.

Question 5

Question: What does the acronym WLL stand for?

Answer 5

Answer: Working load limit

Explanation: WLL is a crucial measure in rigging, indicating the maximum load that a piece of equipment can safely handle.

Question 6

Question: Why have most workplaces reduced their use of synthetic ropes for lifting and hoisting?

a) They often fray or tear during the lift.
b) They have a lower engineer rating.
c) It is difficult to balance a load using them.
d) There are too many types of knots.

Answer 6

Answer: b) They have a lower engineer rating.
Explanation: This reflects a preference for materials with higher engineering ratings for safety and efficiency in lifting and hoisting tasks.

Question 7

Question: _____________ a wire rope can expose broken wires in the valley between strands.

Answer 7

Answer: Flexing
Explanation: Flexing a wire rope is a technique used to reveal hidden damages like broken wires, enhancing safety checks.

Question 8

Question: Plate clamps are equipped with what type of jaw?

a) Serrated jaw
b) Knurled jaw
c) Magnetic jaw
d) All the above

Answer 8

Answer: a) Serrated jaw
Explanation: Serrated jaws provide a stronger grip on the plate, making them suitable for hoisting operations.

Question 9

Question: With regards to U-bolts, what does the phrase “never saddle a dead horse” refer to?

a) The saddle must always be on the live (loaded) end.
b) The saddle must always be on the dead (non-loaded) end.
c) The U-bolt must always be on the live (loaded) end.
d) You must put two U-bolts on the live (loaded) end.

Answer 9

Answer: a) The saddle must always be on the live (loaded) end.
Explanation: This phrase is a mnemonic to remember that the saddle (the part of the clip bearing the load) should always be on the live end of the rope for maximum safety.

Question 10

Question: When using a plate clamp to pull or lift a plate, make sure your line is _______________________ to prevent it from releasing and sliding off.

Answer 10

Answer: directly overhead
Explanation: Proper alignment of the lifting line ensures the safety and stability of the plate during lifting or pulling operations.

Question 11

Question: ____________________ must be re-torqued after the rope is subjected to a load for an hour or two and periodically after that.

Answer 11

Answer: Wire rope clips

Explanation: Regular retorquing of wire rope clips is essential for maintaining the integrity and safety of the connection, especially after the rope has been under load.

Question 12

Question: Calculate the working load limit for a ¾” (0.75”) diameter wire rope in tons.

Answer 12

The formula for wire rope is WLL = D2 x 8 (in tons).

Working Load Limit = D2 x 8
= 0.75x0.75x8
= 4.5 tons

Question 13

Question: The _________________ is the weight that can be safely lifted by a wire rope.

Answer 13

Answer: working load limit (WLL)

Question 14

Question: What is the safety factor for wire rope when lifting people?

a) 5:1
b) 8:1
c) 10:1
d) 15:1

Answer 14

Answer: c) 10:1
Explanation: When lifting people, a higher safety factor is required to ensure additional safety and strength. A 10:1 safety factor means the wire rope can handle ten times the intended load.

Question 15

Question: Explain safety factor.

Answer 15

Answer: A safety factor is a ratio that provides a margin of extra strength so that even if extra stresses are placed on the rope, it will not fail. In other words, it refers to how much stronger the system is than what is required.

Explanation: The safety factor is an essential aspect of rigging, ensuring that equipment can handle unexpected loads or stresses without failing.

Question 16

Question: List the four steps taken to ensure that the sling angle is safe for lifting.

Answer 16

Answer:
a) Measure the length of the sling leg and fittings.
b) Find the center of gravity of the load.
c) Measure an equal distance on either side of the center of gravity, equal to half the length of the sling leg and fittings.
d) Position the sling legs to these two points before making the lift.

Explanation: This sequence ensures that the load is balanced and the sling angle is appropriate, reducing the risk of load slipping or sling failure.

Question 17

Question: What is the arc radius that the rope in the sheave should be supported at?

a) 60° to 90°
b) 90° to 120°
c) 120° to 150°
d) 150° to 180°

Answer 17

Answer: c) 120° to 150°
Explanation: This range ensures optimal support and minimizes wear on the rope, enhancing safety and efficiency.

Question 18

Question: You provide a mechanical advantage with the use of _____________ to safely move a load that is greater in weight than the WLL of the single rope.

Answer 18

Answer: blocks
Explanation: Using blocks increases the capacity to lift heavier loads safely by distributing the weight and reducing the strain on a single rope.

Question 19

Question: In what situation is it appropriate to use an anchor shackle?

Answer 19

Answer: When two slings are used to lift a load in a bridle sling arrangement, the anchor shackle is an appropriate equipment selection.
Explanation: An anchor shackle is suitable for connecting multiple slings, ensuring a secure and balanced lift.

Question 20

Question: List two (2) actions that can be used to safely apply force when guiding and following a suspended load.

Answer 20

Answer:
a) Apply a sideways force; always push the load away from you.
e) Use a rope to pull the load to avoid back strain or entrapment.
Explanation: These actions help in safely maneuvering a suspended load while minimizing the risk of injury or accidents.

Question 21

Question: A __________________ must watch the load; the ___________________ must watch you.

Answer 21

Answer: signal person, operator

Explanation: Ensures clear communication and safety, as the signal person focuses on the load’s movement, and the operator takes cues from the signal person.

Question 22

The signal shown in Figure 47 is the ____________________ signal.

Explain the motions of the signal.

Answer 22

This is the emergency stop signal.

Both arms should be swept out from the body at shoulder height.

Question 23

The signal shown in Figure 48 is the ____________________ signal.

Explain the motions of the signal.

Answer 23

This is the raise boom slowly signal.

Arm out with palm open and down. Make a fist and point to palm with outstretched
thumb.

Question 24

Question: What standard must a full body harness meet?

a) WCB
b) ULC
c) PPE
d) CSA

Answer 24

Answer: d) CSA

Explanation: This question emphasizes the importance of meeting specific safety standards, like those set by the Canadian Standards Association, for personal protective equipment.

Question 25

Question: How often must you inspect your fall arrest equipment?

a) Before use on the first shift of the week
b) Before use on the first shift of the month
c) Before use on each shift
d) Only after the equipment was used to protect you from a fall

Answer 25

Answer: c) Before use on each shift

Explanation: Regular inspection is crucial for ensuring the safety and reliability of fall arrest equipment.

Question 26

Question: What is the minimum distance a ladder must protrude above the intended landing point?

a) 0.3 m (1ft)
b) 1 m (3 ft)
c) ½ the length of the ladder
d) ¼ the distance of the base of the ladder from the base of the wall or structure

Answer 26

Answer: b) 1 m (3 ft)

Explanation: This specification ensures stability and safety when transitioning from the ladder to the landing point.

Question 27

Question: The safety factor for a scaffold must be designed and constructed to support at least how many times the load that may be imposed on it?

a) Three (3) times
b) Four (4) times
c) Five (5) times
d) Six (6) times

Answer 27

Answer: b) Four (4) times

Explanation: This safety factor ensures that scaffolds have a sufficient margin of strength beyond the expected loads.

Question 28

Question: At what height must an employer have a guardrail erected for a temporary work area?

a) 2.4 m (8 ft)
b) 3.0 m (10 ft)
c) 3.7 m (12 ft)
d) 4.2 m (14 ft)

Answer 28

Answer: b) 3.0 m (10 ft)

Explanation: The establishment of a guardrail at this height is a safety measure to prevent falls.

Question 29

Question: When conducting a hazard assessment related to lifting and handling a load, your employer must consider the:

a) Weight, size, and shape of the load
b) Cost of renting moving equipment
c) Insured value of the load to be moved
d) Number of people required to move the load
Answer: a) Weight, size, and shape of the load
Explanation: Understanding these factors is crucial for planning safe lifting and handling procedures.

Answer 29

Answer: a) Weight, size, and shape of the load

Explanation: Understanding these factors is crucial for planning safe lifting and handling procedures.

Question 30

Question: What is not an example of a recommended lifting technique?

a) Avoid awkward postures
b) Lift loads smoothly
c) Lift no higher than eye level
d) Begin lifting at knee level

Answer 30

Answer: c) Lift no higher than eye level

Explanation: This question addresses common misconceptions about safe lifting practices.

Question 31

Question: What is the goal of proper lifting technique?

a) To constantly practice lifting to become more skilled
b) To increase lifting efficiency and capacity with practice
c) To increase the number of lifts performed per day
d) To eliminate loading stresses on the soft tissue of your lower back

Answer 31

Answer: d) To eliminate loading stresses on the soft tissue of your lower back

Explanation: Proper lifting technique is aimed at reducing the risk of injury, particularly to the lower back.

Question 32

Question: How is the working load limit (WLL) defined?

a) Breaking strength divided by the safety factor
b) Safety factor divided by the breaking strength
c) The ultimate tensile strength (UTS)
d) The safest way to move and lower a load

Answer 32

Answer: a) Breaking strength divided by the safety factor

Explanation: WLL is calculated to ensure a significant safety margin in the strength of lifting equipment.

Question 33

Question: What does the term shock loading mean when applied to rigging equipment?

a) A stray spark from a work operation occurs when the sling has load applied to it.
b) The sling is exposed to stress from the load suddenly starting or stopping.
c) The sling contacts an electrical conductor when the sling is loaded.
d) The sling is used as an electrical conductor to connect to a load sensor in the lifting equipment.

Answer 33

Answer: b) The sling is exposed to stress from the load suddenly starting or stopping.

Explanation: Shock loading refers to the sudden force or stress applied to rigging equipment when a load starts or stops moving abruptly, which can significantly affect the equipment’s performance and safety.

Question 34

Question: What rigging factor of safety is to be used when lifting and transporting workers?

a) 2:1
b) 5:1
c) 10:1
d) 20:1

Answer 34

Answer: c) 10:1

Explanation: When lifting and transporting workers, a high factor of safety is required. A 10:1 ratio ensures a large margin of safety to account for any additional stresses or unexpected conditions.

Question 35

Question: How often must rigging be inspected?

a) When first put into service and every three months after that
b) At the beginning of each work shift
c) At the beginning of the first shift of the month
d) At the beginning of the first shift of the week

Answer 35

Answer: b) At the beginning of each work shift

Explanation: Regular inspections at the beginning of each work shift ensure that rigging equipment is in good condition and safe to use.

Question 36

Question: What is the recommended sling angle when rigging a load?

a) The sling angle must never be greater than 45°.
b) The sling angle must never be less than 45°.
c) The sling angle must never be greater than 60°.
d) The sling angle must never be less than 60°.

Answer 36

Answer: d) The sling angle must never be less than 60°.

Explanation: Maintaining a sling angle of at least 60° helps ensure load stability and balance, reducing the risk of accidents.

Question 37

Question: Before attempting to lift an object, you should determine its:

a) Length
b) Width
c) Weight
d) Height

Answer 37

Answer: c) Weight

Explanation: Knowing the weight of the object is crucial for selecting appropriate lifting equipment and for calculating the required lifting capacity.

Question 38

Question: If you must carry a heavy object, what is the best way to hold it?

a) On your shoulder
b) At arm’s length
c) On your hip
d) Close to your body

Answer 38

Answer: d) Close to your body

Explanation: Holding a heavy object close to your body helps maintain balance and reduces strain on your back and arms.

Question 39

Question: What should you do if you are helping to move a suspended load?

a) Stand directly beside the load.
b) Stand under the load.
c) Guide and follow the load.
d) Stand on top of the load.

Answer 39

Answer: c) Guide and follow the load.

Explanation: Guiding and following the load helps to control its movement and prevents accidents, while avoiding dangerous positions like standing under the load.

Question 40

Question: What is the safest method of storing loose materials?

a) Put them in containers or bins.
b) Pile them into the shape of a pyramid.
c) Stack them according to size on shelves.
d) Stack them against a wall according to length.

Answer 40

Answer: a) Put them in containers or bins.

Explanation: Storing loose materials in containers or bins is the safest method as it prevents spillage, reduces clutter, and minimizes the risk of accidents.

Question 41

Question: What is the hand signal for an emergency stop when hoisting a load?

a) Both arms straight up over your head
b) One arm horizontal and one arm vertical
c) Both arms straight out from your shoulders
d) Both arms straight down at your sides

Answer 41

Answer: c) Both arms straight out from your shoulders

Explanation: This signal is a universal gesture for an emergency stop, indicating that all operations should be halted immediately for safety reasons.

Question 42

Question: Which signal indicates boom down?

a) Arm position horizontal and thumb pointing down
b) Arm position horizontal and thumb pointing up
c) Arm position horizontal and fingers pointing down
d) Arm position vertical and thumb pointing down

Answer 42

Answer: a) Arm position horizontal and thumb pointing down

Explanation: This hand signal is used to instruct the crane operator to lower the boom, a critical movement during hoisting operations.

Question 43

Question: Which signal indicates hoist load?

a) Arm straight out with thumb pointing upwards
b) Arm vertical with fingers pointing upwards
c) Both arms straight up in a vertical position
d) Forearm vertical, forefinger pointing up, small circles

Answer 43

Answer: d) Forearm vertical, forefinger pointing up, small circles

Explanation: This hand signal is used to communicate to the crane operator to hoist the load, a common signal in crane operations.

Question 44

Question: Which signal indicates to lower the boom and raise the load?

a) Thumb pointing down and other hand under thumb
b) Thumb pointing up and other hand above thumb
c) Thumb pointing down and fingers moving back and forth
d) Thumb pointing up and fingers moving back and forth

Answer 44

Answer: c) Thumb pointing down and fingers moving back and forth

Explanation: This signal is given to the crane operator to perform the dual action of lowering the boom while raising the load.

Question 45

Question: A knot in a fibre rope can reduce the strength of the rope by approximately

a) 5%
b) 15%
c) 50%
d) 85%

Answer 45

Answer: c) 50%

Explanation: Knots significantly weaken the rope by concentrating stress on a smaller area, reducing its overall strength by about half.

Question 46

Question: A clove hitch

a) Can be used to attach rope to a post or pipe.
b) Can be used to haul personnel.
c) Reduces the fibre rope to 25% of its working strength.
d) Is a good non-slip knot.

Answer 46

Answer: a) Can be used to attach rope to a post or pipe.

Explanation: The clove hitch is a versatile knot used for attaching a rope securely to a post or pipe.

Question 47

Question: A bowline knot

a) Slips easily when load is applied.
b) Can be used for hoisting safety personnel.
c) Is easy to tie and untie when a load is applied.
d) Is a hitch type knot.

Answer 47

Answer: c) Is easy to tie and untie when a load is applied.

Explanation: The bowline knot is known for its strength and ease of untying, even after being loaded.

Question 48

Question: What hitch would be best used as a back-up to other knots/hitches?

a) Timber hitch
b) Catspaw
c) Half hitch
d) Carrick bend

Answer 48

Answer: c) Half hitch

Explanation: The half hitch is often used as a supplementary knot to add security to the primary knot or hitch.

Question 49

Question: Which synthetic fibre rope is the strongest?

a) Nylon
b) Polyester
c) Polypropylene
d) Polyethylene

Answer 49

Answer: a) Nylon

Explanation: Nylon is known for its high strength and elasticity, making it the strongest option among the synthetic fibre ropes listed.

Question 50

Question: What is the approximate weight of a piece of steel that is 305 mm x 305 mm and 25.4 mm thick (one foot x one foot and one inch thick)?

a) 4.5 kg (10 lb)
b) 18.5 kg (40 lb)
c) 37.0 kg (80 lb)
d) 45.5 kg (100 lb)

Answer 50

Answer: b) 18.5 kg (40 lb)

Explanation: This calculation is based on the volume and density of steel, giving an approximate weight for the specified dimensions.

Question 51

Question: Where is the centre of gravity of an object located?

a) At the point where it weighs the least
b) At the point where it lands when dropped
c) At the point that causes it to topple over
d) At the point where the object balances

Answer 51

Answer: d) At the point where the object balances

Explanation: The centre of gravity is the point where the weight of the object is evenly distributed and balanced.

Question 52

Question: What can happen if you lift a load with the center of gravity above the lifting points?

a) The load could slide out of the slings.
b) The load could damage the slings.
c) The load could tip over or shift.
d) You could lift the load higher.

Answer 52

Answer: c) The load could tip over or shift.

Explanation: Lifting a load with its center of gravity above the lifting points can lead to instability, causing the load to tip or shift unexpectedly, which is a significant safety risk.

Question 53

Question: What is the safety factor for wire rope when lifting people?

a) 5:1
b) 8:1
c) 10:1
d) 15:1

Answer 53

Answer: c) 10:1

Explanation: A higher safety factor is required when lifting people to ensure maximum safety. The 10:1 ratio means the wire rope can support ten times the intended load.

Question 54

Question: The working load limit for wire rope is D2 x 8 = WLL (in tons). What is the WLL of ¾” diameter wire rope?

a) 4.5 tons
b) 5.6 tons
c) 10.6 tons
d) 12.0 tons

Answer 54

Answer: a) 4.5 tons

Explanation: Using the given formula, the working load limit for a ¾” diameter wire rope is calculated to be 4.5 tons, which is the maximum safe load that can be lifted by the rope.

Question 55

Question: Which statement is true with respect to synthetic web slings?

a) They are heavier than wire rope slings.
b) They are lightweight and very flexible.
c) They can lift on sharp corners without padding.
d) Irregularly shaped loads cannot be lifted.

Answer 55

Answer: b) They are lightweight and very flexible.

Explanation: Synthetic web slings are known for their lightweight and flexibility, making them a versatile choice for various lifting applications.

Question 56

Question: What is the approximate maximum working load limit for a 3” wide nylon sling (8000 lb/in. material) using a single choker hitch?

a) 2400 lbs
b) 3600 lbs
c) 4800 lbs
d) 9600 lbs

Answer 56

Answer: b) 3600 lbs

Explanation: The working load limit for a 3” wide nylon sling with an 8000 lb/in. material strength in a single choker hitch is approximately 3600 lbs. This represents the maximum load that can be safely supported by the sling in this configuration.