LIFT DIRECTOR — PART 2
Load Chart Mastery — Grove TLL & Manitowoc LBC · Tandem Lifts · Net Capacity Math
Download the NCCCO Lift Director Load Charts First
This quiz uses the same load charts provided during the actual NCCCO Lift Director Specialty exam — the Grove RT540E (TLL) and the Manitowoc 888 Series 2 (LBC). You will need them open to answer the load chart questions accurately. Download them free directly from NCCCO:
DOWNLOAD AT nccco.org/LDloadchartsWhat Makes This Quiz Hard
The NCCCO Lift Director Mobile Crane Specialty exam is scenario-based — you get the actual crane load charts and must interpret them to answer lift planning questions. This Part 2 quiz replicates that experience with 30 challenging questions that require real load chart lookups.
Net Capacity Math
Block, rigging, jib deductions from gross chart ratings
Tandem Lift Planning
Proportional load sharing, percentage of capacity, critical lift thresholds
Configuration Rules
Outrigger spread, crawler extension, on-rubber, pick-and-carry limits
Critical Load Chart Rules to Know
Between-Values Rule
When radius or boom falls between listed values, use the SMALLEST capacity shown at the next larger radius or next longer/shorter boom.
Jib Attachment Deduction
When any jib is attached — even stowed — deduct the published jib weight from main boom rated capacity.
On-Rubber: No Extensions
Boom extensions (jibs) cannot be used for on-rubber lifts on the Grove TLL — outriggers must be set.
Critical Lift Threshold
Any lift exceeding 75% of rated capacity is a critical lift — written plan required. Tandem lifts are always critical lifts.
Gross Load Includes Everything
Gross load = payload + hookblock + all rigging + slings + shackles. ALL hardware counts against capacity.
Outrigger Spread Matters
Partial outrigger extension requires the partial-extension chart — not the fully-extended chart, even for loads within full-extension limits.
Open the Load Charts & Start the Quiz
30 load chart questions including net capacity math, jib deductions, tandem lift planning, and real NCCCO exam-style scenarios. Download the Grove TLL and Manitowoc LBC charts before starting.