NCCCO LATTICE BOOM GENERAL KNOWLEDGE
EXAM NEWEST / NCCCO LATTICE BOOM GENERAL
KNOWLEDGE EXAM PREPARATION / NCCCO LATTICE
BOOM GENERAL KNOWLEDGE PRACTICE EXAM
WITH COMPLETE 200+ QUESTIONS AND CORRECT
ANSWERS | BRAND NEW VERSION!
Core Domains
Crane Components and Terminology
Wire Rope and Reeving
Load Charts and Capacity
Crane Stability and Ground Conditions
Crane Assembly and Disassembly
Safety Devices and Operational Procedures
OSHA and ASME Regulations
Lift Planning and Critical Lifts
Maintenance and Inspection
Introduction
The NCCCO Lattice Boom General Knowledge examination assesses
the candidate's knowledge of safe lattice boom crane operation as
required by OSHA and ASME standards. The examination evaluates
understanding of crane components, wire rope inspection and
reeving, load chart interpretation, stability principles, assembly and
disassembly procedures, safety devices, and regulatory compliance.
,Candidates are assessed on their ability to apply load chart data,
identify hazards, and demonstrate operational knowledge for lattice
boom crawler and truck cranes. The examination employs a
multiple-choice and scenario-based structure, emphasising real-
world application and decision-making in crane operations.
Section One: Questions 1–200
Question 1
On a lattice boom crawler crane, the main boom length is measured
from which points?
A. The center of the boom heel pins to the center of the boom tip
sheave
B. The base of the boom to the tip of the jib
C. The turntable center to the boom tip
D. The ground to the boom tip
Correct answer: A
RATIONALE: The main boom length is measured from the
center of the boom heel pins to the center of the boom tip sheave.
This point is a fixed reference, allowing for accurate boom length
calculations that remain constant regardless of boom angle changes.
Question 2
What is the primary function of a live mast (gantry) on a
conventional lattice boom crawler crane?
,A. To support the boom suspension pendants and distribute the
structural load from the boom tip back to the upper works and
counterweights
B. To store extra wire rope for the hoist drum
C. To act as a mounting bracket for the operator cab door
D. To drive the crawler tracks during travel maneuvers
Correct answer: A
RATIONALE: The live mast works with the boom hoist
pendants to provide the proper mechanical angle and support for
heavy boom lengths and lifting loads. It distributes the structural
load from the boom tip back to the upper works and
counterweights.
Question 3
What is the main purpose of mid-point suspension pendants on a
lattice boom crane?
A. To absorb shock that comes with dynamic loading
B. To increase the crane's leverage on the boom
C. To support the boom during assembly
D. To reduce the weight of the boom
Correct answer: A
RATIONALE: Mid-point suspension pendants absorb shock
from dynamic loading during lifting operations. They help
, distribute the load along the boom and reduce stress on the boom
sections.
Question 4
The device that automatically stops the boom when it nears the
maximum angle is called the:
A. Boom hoist limit switch
B. Boom hoist kick out
C. Anti-two block device
D. Load moment indicator
Correct answer: B
RATIONALE: The boom hoist kick out automatically stops the
boom when it nears the maximum angle, preventing the boom from
being raised beyond its safe operating limit. This is a critical safety
device on lattice boom cranes.
Question 5
What is the main purpose of a jib or extension on a lattice boom
crane?
A. To extend reach higher or up and over obstacles
B. To increase the crane's lifting capacity
C. To reduce the weight of the main boom
D. To stabilize the crane during lifting
Correct answer: A
EXAM NEWEST / NCCCO LATTICE BOOM GENERAL
KNOWLEDGE EXAM PREPARATION / NCCCO LATTICE
BOOM GENERAL KNOWLEDGE PRACTICE EXAM
WITH COMPLETE 200+ QUESTIONS AND CORRECT
ANSWERS | BRAND NEW VERSION!
Core Domains
Crane Components and Terminology
Wire Rope and Reeving
Load Charts and Capacity
Crane Stability and Ground Conditions
Crane Assembly and Disassembly
Safety Devices and Operational Procedures
OSHA and ASME Regulations
Lift Planning and Critical Lifts
Maintenance and Inspection
Introduction
The NCCCO Lattice Boom General Knowledge examination assesses
the candidate's knowledge of safe lattice boom crane operation as
required by OSHA and ASME standards. The examination evaluates
understanding of crane components, wire rope inspection and
reeving, load chart interpretation, stability principles, assembly and
disassembly procedures, safety devices, and regulatory compliance.
,Candidates are assessed on their ability to apply load chart data,
identify hazards, and demonstrate operational knowledge for lattice
boom crawler and truck cranes. The examination employs a
multiple-choice and scenario-based structure, emphasising real-
world application and decision-making in crane operations.
Section One: Questions 1–200
Question 1
On a lattice boom crawler crane, the main boom length is measured
from which points?
A. The center of the boom heel pins to the center of the boom tip
sheave
B. The base of the boom to the tip of the jib
C. The turntable center to the boom tip
D. The ground to the boom tip
Correct answer: A
RATIONALE: The main boom length is measured from the
center of the boom heel pins to the center of the boom tip sheave.
This point is a fixed reference, allowing for accurate boom length
calculations that remain constant regardless of boom angle changes.
Question 2
What is the primary function of a live mast (gantry) on a
conventional lattice boom crawler crane?
,A. To support the boom suspension pendants and distribute the
structural load from the boom tip back to the upper works and
counterweights
B. To store extra wire rope for the hoist drum
C. To act as a mounting bracket for the operator cab door
D. To drive the crawler tracks during travel maneuvers
Correct answer: A
RATIONALE: The live mast works with the boom hoist
pendants to provide the proper mechanical angle and support for
heavy boom lengths and lifting loads. It distributes the structural
load from the boom tip back to the upper works and
counterweights.
Question 3
What is the main purpose of mid-point suspension pendants on a
lattice boom crane?
A. To absorb shock that comes with dynamic loading
B. To increase the crane's leverage on the boom
C. To support the boom during assembly
D. To reduce the weight of the boom
Correct answer: A
RATIONALE: Mid-point suspension pendants absorb shock
from dynamic loading during lifting operations. They help
, distribute the load along the boom and reduce stress on the boom
sections.
Question 4
The device that automatically stops the boom when it nears the
maximum angle is called the:
A. Boom hoist limit switch
B. Boom hoist kick out
C. Anti-two block device
D. Load moment indicator
Correct answer: B
RATIONALE: The boom hoist kick out automatically stops the
boom when it nears the maximum angle, preventing the boom from
being raised beyond its safe operating limit. This is a critical safety
device on lattice boom cranes.
Question 5
What is the main purpose of a jib or extension on a lattice boom
crane?
A. To extend reach higher or up and over obstacles
B. To increase the crane's lifting capacity
C. To reduce the weight of the main boom
D. To stabilize the crane during lifting
Correct answer: A
