20 Safety & Hazardous Materials Practice Questions & Answers
Every Safety & Hazardous Materials practice question from the Logistics Technician Practice Test, with the correct answer and a short explanation.
Start practice test →1. A packing station has workers lifting cartons off the floor all shift. Using the hierarchy of controls, which action deals with the hazard most effectively?
- A.Rotate packers to other jobs so each one lifts fewer hours
- B.Install a lift table so cartons arrive at waist height✓ Answer
- C.Issue back support belts and require them on every shift
- D.Post lifting technique reminders and coach the crew weekly
Engineering controls rank above administrative controls and PPE because they change the work itself: a lift table removes the floor-level lift, so no one has to remember a rule or wear anything for the protection to work. Belts, signs and job rotation leave the same lift in place and depend on human behavior every time.
Source: NIOSH Hierarchy of Controls; MSSC Certified Logistics Associate standardsReport a problem with this question
2. A pallet slides off a load and hits the floor where nobody happened to be standing. Why does the site want this near miss reported?
- A.It shifts responsibility for the damaged goods onto the carrier
- B.It records who was at fault so a disciplinary step can follow
- C.It reveals a hazard that can be corrected before someone is hurt✓ Answer
- D.It meets the requirement to enter every event on the injury record
A near miss is a free lesson: the same conditions that dropped the pallet are still present, and reporting lets them be fixed before the next drop lands on a person. Near-miss reporting is about finding causes, not about blame, paperwork or claims.
Source: OSHA Recommended Practices for Safety and Health Programs, incident and near-miss investigationReport a problem with this question
3. Returned cartons are stacked in front of an emergency exit door for a single shift. What is the correct assessment of that stack?
- A.The stack may stay if a sign directs people to another exit door
- B.The stack is acceptable while the door still opens from the inside
- C.The stack is acceptable if the aisle beside it is marked and kept swept
- D.The stack must be moved because exit routes stay clear at all times✓ Answer
An exit route has to be usable in the dark, in smoke and in a crowd, so nothing may narrow or block it even briefly; a person fleeing will not stop to read a sign or move freight. Housekeeping rules treat blocked exits, extinguishers and panels the same way, and the block is a violation from the moment it is placed.
Source: OSHA Exit Routes, Emergency Action Plans, and Fire Prevention Plans standardReport a problem with this question
4. The evacuation alarm sounds while an order selector is halfway through a pick. What does the emergency action plan expect of that worker?
- A.Close the order in the system first so the pick count is not lost
- B.Stop at the supervisor office to get instructions before going out
- C.Check the nearby aisles for co-workers who may not have heard it
- D.Go to the assigned assembly point and stay there for the head count✓ Answer
The head count at the assembly point is how the site learns whether anyone is still inside, so a worker who detours, lingers or searches on their own makes the count wrong and may be reported as missing. Searching the building is the job of trained responders, not of evacuating employees.
Source: OSHA Emergency Action Plans standard, 29 CFR 1910.38Report a problem with this question
5. A worker has to move a carton that is heavier than they can comfortably handle alone. What is the best first choice?
- A.Push it along the floor with a foot until it reaches the pallet
- B.Use a pallet jack or cart, or get a second person for the lift✓ Answer
- C.Lift it while wearing a back belt to support the lower spine
- D.Lift it fast in one motion so the strain lasts a short time
Deciding not to lift is itself a safety skill: mechanical aids and team lifts remove the overload instead of managing it, which is why they come before any technique. Back belts are not recognized as protection against lifting injury, and no lifting style makes an overweight load safe for one person.
Source: NIOSH Ergonomic Guidelines for Manual Material HandlingReport a problem with this question
6. Partway through a lift a worker must set the load on a bench behind them. What is the safe way to change direction?
- A.Swing the load sideways with the arms while the hips stay still
- B.Turn the whole body by stepping the feet around, hips square to the load✓ Answer
- C.Bend at the waist and twist the upper back toward the bench top
- D.Rotate the shoulders toward the bench while both feet stay planted
Twisting under load puts uneven shear on the discs of the lower back while the spine is already compressed, which is a common way a routine lift becomes an injury. Moving the feet keeps the hips, shoulders and load lined up so the legs, not the spine, do the turning.
Source: NIOSH Ergonomic Guidelines for Manual Material HandlingReport a problem with this question
7. Two chemicals on the same inbound order may not be put away side by side. What principle decides where each one goes?
- A.Incompatible materials are separated so a leak cannot mix them✓ Answer
- B.Matching materials are placed together to speed up picking
- C.Heavier materials are placed on the lower storage levels first
- D.Fast-moving materials are placed nearest the shipping doors first
Segregation exists because some pairs react when they meet, so a leak, a dropped drum or a sprinkler discharge could put them in contact and start a fire, a violent reaction or a toxic gas release. Distance and separate containment remove that pathway; picking speed and weight decide layout only after compatibility is satisfied.
Source: US DOT Hazardous Materials Regulations, segregation of hazardous materials, 49 CFR 177.848Report a problem with this question
8. Before a knife task a worker finds that the required cut-resistant gloves are torn. What is the correct step?
- A.Get an undamaged pair from the employer before starting the task✓ Answer
- B.Tape the tear and finish the shift with the same pair of gloves
- C.Use the torn pair carefully and report the damage at shift end
- D.Buy a replacement pair personally and ask for reimbursement later
PPE is the last line of defense, so damaged PPE means there is no defense left and the task waits until it is replaced; taped or worn gloves give a false sense of protection at the exact moment the blade slips. The employer must supply and maintain the required PPE at no cost to the employee.
Source: OSHA Personal Protective Equipment standard, 29 CFR 1910.132Report a problem with this question
9. A pallet is being built from cartons of mixed weight for storage in a rack. How should the load be arranged?
- A.Heaviest cartons on one side so the forks lift the load evenly
- B.Heaviest cartons in the middle layer with light ones above and below
- C.Heaviest cartons on the bottom, squared up and interlocked✓ Answer
- D.Heaviest cartons on top so the lighter ones are not crushed
Weight low and centered keeps the center of gravity low so the stack resists tipping when it is lifted, turned or braked, and interlocking ties the tiers together against sliding. Weight placed high or off to one side makes the load unstable and can drop cartons on people below.
Source: OSHA Handling Materials, General, 29 CFR 1910.176Report a problem with this question
10. An order selector sees a rack upright that has been bent by an impact. What is the correct response?
- A.Have the bay unloaded and the frame checked by qualified people✓ Answer
- B.Move the pallets in that bay up to the top beam level for now
- C.Mark the upright with tape and keep using the bay for light loads
- D.Straighten the upright with a bar and reload the same pallets
A bent upright has lost the straight line that carries the load down to the floor, and the whole run of rack can come down without warning, so the bay is emptied and evaluated by people qualified to judge and repair it. Straightening or reloading a damaged frame hides the damage without restoring its strength.
Source: OSHA Handling Materials, General, 29 CFR 1910.176; OSHA National Emphasis Program on Warehousing and Distribution Center OperationsReport a problem with this question
11. A carton has jammed inside a powered conveyor. What must be done before anyone reaches into the equipment?
- A.The conveyor is stopped with the pull cord and left ready to restart
- B.The conveyor is set to its slowest speed and watched by a co-worker
- C.The conveyor is shut down, locked out and tagged before the work✓ Answer
- D.The conveyor is cleared by whoever is nearest, using a long hook
A conveyor that is only stopped can still start on its own or be restarted by someone who cannot see the hands in the machine, so the energy is isolated, locked and tagged and the stopped state is verified first. The lock belongs to the person doing the work and only that person removes it.
Source: OSHA Control of Hazardous Energy (Lockout/Tagout) standard, 29 CFR 1910.147Report a problem with this question
12. A worker on the far side of a running conveyor line needs to reach the aisle on the other side. What is correct?
- A.Crawl under the frame where the rollers are guarded from below
- B.Walk to the designated crossover point built for that purpose✓ Answer
- C.Ride the belt a short distance to the opening in the line
- D.Step over the belt at a gap between two cartons going past
Belts, rollers, chains and sprockets create nip points that pull in a glove, a sleeve or a hair in an instant and give no time to pull free, so crossing is only done where a bridge or walkway keeps the body out of the machine. Climbing over, under or onto a live conveyor puts a person inside the moving parts.
Source: ASME B20.1 Safety Standard for Conveyors and Related EquipmentReport a problem with this question
13. Before a powered truck drives into a trailer at a dock door, what has to be confirmed?
- A.The trailer doors are closed behind the truck to block traffic
- B.The trailer is loaded from the rear first so weight stays low
- C.The driver waits in the cab with the engine running to help
- D.The trailer is restrained or chocked and its brakes are set✓ Answer
The truck and its load weigh several times what the trailer suspension expects, and any roll or drift opens a gap the truck can fall into, so the trailer is held to the building and its own brakes are set before anyone drives on. Securing the trailer is checked as part of entering, not after loading starts.
Source: OSHA Powered Industrial Trucks standard, 29 CFR 1910.178Report a problem with this question
14. Why must the restraint or wheel chocks stay in place until loading is finished and the dock signals clear?
- A.The trailer interior can cool down and damage temperature-sensitive goods
- B.The trailer load can shift forward and block the dock doorway
- C.The driver may seal the trailer before the final count is done
- D.The trailer can drift off the dock and drop the truck into the gap✓ Answer
Repeated entries push a trailer away from the building a little at a time, and an early pull-away does it all at once; either way the dock plate loses its support and the truck goes into the gap, which is one of the deadliest dock events. The restraint stays until the person doing the loading says the work is done.
Source: OSHA Powered Industrial Trucks standard, 29 CFR 1910.178Report a problem with this question
15. A worker on foot has to cross an aisle while a powered truck is travelling toward them. What should they do?
- A.Cross quickly in front while a gap in the aisle remains
- B.Cross behind the truck as soon as it has passed the aisle
- C.Wave both arms so the operator knows a person is present
- D.Wait until the operator sees them and signals that it is clear✓ Answer
A loaded truck has blind spots, cannot stop quickly and may reverse without warning, so the pedestrian yields and waits for a clear acknowledgement rather than assuming they have been seen. Eye contact plus a signal is the only confirmation that the operator has actually accounted for the person on foot.
Source: OSHA Powered Industrial Trucks standard, 29 CFR 1910.178Report a problem with this question
16. At the start of a shift a worker finds a cracked wheel on a manual pallet jack. What is correct?
- A.Note the crack in the log book and keep the jack in normal use
- B.Tag the jack out of service and take a different one for the shift✓ Answer
- C.Use the jack only on smooth floor sections where the wheel holds
- D.Use the jack for light pallets only until maintenance has time
Equipment is inspected before use precisely so a defect is caught while it is still only a defect; a wheel that fails under load drops the pallet and can trap a foot or pin a worker against racking. Damaged equipment is removed from service and tagged so no one else picks it up before it is repaired.
Source: Occupational Safety and Health Act General Duty Clause; OSHA Handling Materials, General, 29 CFR 1910.176Report a problem with this question
17. A pallet arrives with diamond-shaped labels on the cartons and one line highlighted on the shipping paper. What does that tell the receiver?
- A.It is temperature-controlled freight and goes to the cooler first
- B.It is hazardous material and the special receiving procedure applies✓ Answer
- C.It is fragile freight and must be moved by hand, not by truck
- D.It is high-value freight and belongs in a locked storage cage
The diamond label and the highlighted entry are the two signals the transport system uses to declare a hazardous material, and they are meant to be recognized before the freight is touched. Recognizing them tells the receiver to stop and follow the hazmat process rather than treat the pallet as ordinary freight.
Source: US DOT Hazardous Materials Regulations, marking, labeling and shipping paper requirements, 49 CFR Part 172Report a problem with this question
18. Before handling a chemical they have not used before, a worker looks up its safety data sheet. What does that sheet provide?
- A.Shipment weight, pallet count and the carrier assigned to the load
- B.First aid, spill measures, storage advice and required protection✓ Answer
- C.Purchase price, supplier contract and the reorder lead time for stock
- D.Production date, lot number and the shelf life still remaining
The safety data sheet is the chemical's own instruction set, written in fixed sections so any worker can find hazards, first aid, spill handling, storage and required protection in the same place every time. It must be available to employees in their work area during every shift, before the chemical is handled.
Source: OSHA Hazard Communication standard, 29 CFR 1910.1200, safety data sheetsReport a problem with this question
19. A worker with no hazardous materials training is asked to load a placarded shipment. How should that request be handled?
- A.A trained co-worker watches from the dock while the loading is done
- B.The written loading instructions on file are followed step by step
- C.A trained employee takes the task and the supervisor is informed✓ Answer
- D.The safety data sheet is read first and then the loading continues
Handling, loading and offering hazardous materials is work reserved for employees who have completed the required hazmat training, because the risks are not obvious from the package and a wrong move can injure people far beyond the dock. Reading a sheet, being watched or following a written instruction does not substitute for that training.
Source: US DOT hazmat employee training requirements, 49 CFR 172.704Report a problem with this question
20. A worker finds liquid leaking from a drum in the storage area and does not know what the liquid is. What should they do?
- A.Wipe the drum down with rags so the printed label can be read
- B.Spread absorbent from the nearest spill kit and bag the waste
- C.Keep people back, then notify as the facility procedure directs✓ Answer
- D.Roll the drum outside the building so the leak is away from goods
An unidentified liquid may be corrosive, flammable or give off vapor, so the first job is to keep people out of it and get the message to those trained and equipped to respond. Cleanup, moving the drum or wiping it by hand all put an untrained person in contact with the very material nobody has identified yet.
Source: OSHA Hazard Communication standard, 29 CFR 1910.1200; US DOT Emergency Response GuidebookReport a problem with this question
Practice questions based on the MSSC national logistics standards and the published key work activities of the Certified Logistics Associate and Certified Logistics Technician assessments, together with federal general-industry safety requirements and standard warehouse and distribution practice. MSSC, CLA and CLT are marks of the Manufacturing Skills Standards Council; this site is not affiliated with or endorsed by MSSC. Questions here never depend on recalling a regulatory limit, a citation number or an equipment rating — always follow your own facility's written procedures and the data plate on the equipment you use, and confirm current requirements before testing. About the CLA and CLT certifications →