Warehouse staff load and secure your truck while you complete paperwork. Does that remove your responsibility for the load?
Correct answer: No; you still need to assure yourself it is safely distributed and secured
The driver remains responsible for safe cargo, even when someone else performs the loading. Check securement, balance and safe access before the trip.
Source: Washington Commercial Driver Guide, N/10/20; section 3.1, physical PDF 72, printed 3-1. ↗
A firmly tied load blocks your access to the truck's emergency equipment. Is its arrangement acceptable?
Correct answer: No; secure cargo must also leave ready access to emergency equipment
A load can be firmly secured and still be unsafe because it obstructs emergency access, controls or vision. Correct the arrangement before driving.
Source: 49 CFR 392.9(a)(3); emergency access and cab obstructions. ↗
You start a trip with accessible cargo in an interstate truck; no inspection exception applies. When must you first recheck its securement on the road?
Correct answer: Within the first 50 miles
Inspect within the first 50 miles and make needed adjustments. The later reinspection intervals do not replace this initial check.
Source: 49 CFR 392.9(b)(2), (b)(4); initial check with sealed/impracticable exceptions excluded. ↗
With accessible cargo and no exception, you have driven 3 hours but only 110 miles since the last cargo recheck. What is required?
Correct answer: Reexamine the load now; the three-hour trigger has been reached
For applicable trucks, recheck when duty status changes, after three driving hours or after 150 miles, whichever comes first. The mileage limit does not postpone a time-based check.
Source: 49 CFR 392.9(b)(3); duty change, 3 hours or 150 miles, whichever first. ↗
You change duty status after a short drive with an inspectable load. Neither 3 hours nor 150 miles has elapsed. Does the cargo rule still require a recheck?
Correct answer: Yes; a duty-status change is a separate reexamination trigger
The rule lists duty-status changes as well as time and distance. An applicable driver does not need to wait for the other thresholds.
Source: 49 CFR 392.9(b)(3)(i); duty-status-change trigger, no inspection exception. ↗
Your trailer is sealed and you have been ordered not to open it for inspection. What remains important despite that inspection exception?
Correct answer: Check gross and axle weights and the vehicle's external condition
The sealed-load exception does not certify safe weights or the condition of the vehicle. Respect the seal and verify the checks that remain possible, including gross and axle loads.
Source: Washington Commercial Driver Guide, N/10/20; section 3.3.5, physical PDF 74, printed 3-3. ↗
A loaded truck is within its overall weight limit, but cargo is concentrated over one axle. What must be checked?
Correct answer: Individual axle loading as well as the total vehicle weight
An acceptable total does not prove acceptable axle loading or balance. Load distribution affects both equipment limits and handling.
Source: Washington Commercial Driver Guide, N/10/20; section 3.2.4, physical PDF 73, printed 3-2. ↗
When arranging heavy and light freight, which layout generally lowers rollover risk?
Correct answer: Place the heavier freight low and the lighter freight above it
Keeping heavy cargo low reduces the center of gravity. High stacks and heavy freight on top increase instability in curves or evasive moves.
Source: Washington Commercial Driver Guide, N/10/20; section 3.2.3, physical PDF 73, printed 3-2. ↗
Too much cargo weight is shifted toward the back, leaving the front axle too lightly loaded. What can result?
Correct answer: Reduced steering traction and unsafe directional control
The steering axle needs suitable loading for traction and control. Moving weight rearward without checking balance can make steering unsafe.
Source: Washington Commercial Driver Guide, N/10/20; section 3.2.4, physical PDF 73, printed 3-2. ↗
Your truck has too little weight on its drive axles for the conditions. Which difficulty is more likely?
Correct answer: Drive-wheel spin and reduced traction
Drive tires need adequate traction to move the load. Too little drive-axle weight can make wheelspin especially troublesome in bad weather.
Source: Washington Commercial Driver Guide, N/10/20; section 3.2.4, physical PDF 73, printed 3-2. ↗
You secure shaped blocks snugly against a crate and fasten them to the deck. What is their main purpose?
Correct answer: Prevent the crate from sliding along the load deck
Blocking restrains movement at the cargo's sides, front or rear. Its installation and strength must suit the load; other applicable securement requirements still matter.
Source: Washington Commercial Driver Guide, N/10/20; section 3.3.1, physical PDF 73, printed 3-2. ↗
Under the general article-securement rule, what minimum aggregate working load limit is needed for an 8,000-pound article?
Correct answer: 4,000 pounds
The aggregate WLL minimum is half the article's weight: 8,000 divided by two. Count and arrangement rules must also be met, and a tiedown's contribution depends on how it is attached.
Source: 49 CFR 393.106(d); aggregate working-load limit, general article rule. ↗
Under the general tiedown-count rule, an unblocked 4-foot, 900-pound article needs at least how many tiedowns? Assume adequate strength and no special commodity rule.
Correct answer: One tiedown
For an article no longer than five feet and no heavier than 1,100 pounds, the unblocked general rule permits one as the count minimum. Strength and securement requirements still apply.
Source: 49 CFR 393.110(b)(1); short/light unblocked article, general count rule. ↗
An 8-foot article weighs only 500 pounds and is not blocked against forward movement. Under the general rule, what is the minimum tiedown count?
Correct answer: Two tiedowns
An unblocked article longer than five feet and no longer than ten feet needs at least two, regardless of its low weight. This assumes no commodity-specific rule and sufficient securement strength.
Source: 49 CFR 393.110(b)(2)(ii); over 5 through 10 feet, unblocked. ↗
A 12-foot article is not blocked against forward movement. Under the general tiedown-count rule, how many are needed at minimum?
Correct answer: Three tiedowns
For an unblocked article longer than ten feet, use two for the first ten feet plus one for the remaining fraction. This is the count minimum, with strength and other applicable requirements separate.
Source: 49 CFR 393.110(b)(3); unblocked 12-foot article, no special-method exception. ↗
A 12-foot article is properly blocked against forward movement. Under the general rule, what is its minimum tiedown count, assuming no special rule applies?
Correct answer: Two tiedowns
Properly blocked articles require at least one tiedown per ten feet or fraction. Twelve feet therefore needs two; adequate blocking, strength and attachment remain necessary.
Source: 49 CFR 393.110(c); blocked 12-foot article, no special-method exception. ↗
Your tiedowns meet the minimum count, but their calculated aggregate WLL is below the required amount. Is the cargo ready to travel?
Correct answer: No; both the count and strength requirements must be met
The requirements work together. Enough tiedowns by number may still provide insufficient rated restraint for the load.
Source: 49 CFR 393.110(a), referring to 393.106; count requirements are additional. ↗
Why must a truck's front-end header board be sound and properly secured?
Correct answer: It helps resist cargo moving forward during a sudden stop
A header board protects the front of the cargo area against forward load movement. A damaged structure may not provide that restraint.
Source: Washington Commercial Driver Guide, N/10/20; section 3.3.3, physical PDF 74, printed 3-3. ↗
A tarp covers freight on a flatbed. What still needs to be established before driving?
Correct answer: That the cargo itself is properly secured against movement
A cover can protect against weather or spillage, but it does not automatically provide the restraint needed to secure the cargo. Secure the load and the cover.
Source: Washington Commercial Driver Guide, N/10/20; section 3.3.4, physical PDF 74, printed 3-3. ↗
Why does a refrigerated trailer carrying hanging meat call for particular caution on a curved exit ramp?
Correct answer: The suspended load can be unstable and has a high center of gravity
Hanging cargo can be unstable and top-heavy. Enter curves slowly and avoid abrupt control changes that can disturb the load.
Source: Washington Commercial Driver Guide, N/10/20; section 3.4.2, physical PDF 74, printed 3-3. ↗
