Examination Advanced 100-Question
Practice Exam 2026 | Questions &
Answers with Detailed Rationales |
Complete Exam Prep & Study Guide
1. Before operating a mobile crane at a new jobsite, which factor should
receive the highest priority during the initial site assessment?
A. The crane's paint condition
B. Ground conditions, overhead hazards, underground utilities, and swing
clearance
C. The operator's preferred control settings
D. The number of workers assigned to the project
Answer: B. Ground conditions, overhead hazards, underground utilities, and
swing clearance
Rationale: A crane's stability and safe operating envelope depend heavily on
ground support, clearance, and site hazards. These conditions must be
evaluated before setup and operation.
, 2. A crane's load chart lists a maximum capacity of 20,000 lb at a particular
radius. The planned load weighs 18,500 lb, but the rigging weighs 1,800 lb.
What is the correct conclusion?
A. The load is within capacity because the payload is below 20,000 lb
B. The rigging weight may be ignored
C. The total suspended load exceeds the rated capacity
D. The operator may proceed if the load is lifted slowly
Answer: C. The total suspended load exceeds the rated capacity
Rationale: Rated capacity applies to the total load imposed on the crane,
including the load, rigging, attachments, and other applicable deductions.
3. What is the primary purpose of a crane's load chart?
A. To establish the operator's maximum working hours
B. To identify allowable capacities under specified configurations and conditions
C. To determine fuel consumption
D. To establish the required number of riggers
Answer: B. To identify allowable capacities under specified configurations and
conditions
Rationale: Load charts provide capacity limits based on factors such as boom
length, radius, counterweight, configuration, outrigger position, and other
manufacturer-specified conditions.
4. If the operating radius increases while all other conditions remain
unchanged, what generally happens to crane capacity?
A. It increases
B. It remains constant
C. It decreases
D. It becomes independent of boom length
Answer: C. It decreases
,Rationale: As operating radius increases, overturning moment increases,
generally reducing the crane's allowable lifting capacity.
5. Which condition creates the greatest concern when positioning a crane
near an excavation?
A. The excavation is freshly painted
B. The crane is positioned too close to the excavation edge
C. The boom is painted a bright color
D. The operator has a radio
Answer: B. The crane is positioned too close to the excavation edge
Rationale: Excavation edges may fail under crane loading. Adequate setback
and evaluation of soil conditions are essential for stability.
6. What is the safest response if the operator cannot see the load or landing
area and no reliable communication system is available?
A. Continue at reduced speed
B. Hoist faster to minimize exposure time
C. Stop the operation until reliable communication is established
D. Ask workers to shout instructions
Answer: C. Stop the operation until reliable communication is established
Rationale: A crane operator must have reliable communication with the
designated signal person whenever the load path or operating area cannot be
adequately observed.
7. What does the term "gross capacity" generally refer to in crane operations?
A. Capacity after all deductions
B. Maximum rated capacity before applicable deductions
C. Weight of the crane only
D. Weight of the counterweight
Answer: B. Maximum rated capacity before applicable deductions
, Rationale: Gross capacity represents the charted capacity before deductions for
items such as auxiliary equipment, attachments, and certain rigging
components when applicable.
8. A crane is operating at a radius of 40 ft with a 50-ft boom. The load chart
provides a lower capacity for a 60-ft boom at the same radius. Why?
A. Longer booms can increase overturning effects and structural loading
B. Longer booms always weigh less
C. Longer booms eliminate counterweight
D. Boom length has no effect on capacity
Answer: A. Longer booms can increase overturning effects and structural
loading
Rationale: Boom length affects geometry, structural stresses, leverage, and
stability. Operators must use the correct chart for the actual configuration.
9. What is the primary purpose of outriggers?
A. Increase engine horsepower
B. Reduce fuel consumption
C. Increase the crane's effective support base and improve stability
D. Increase hoist speed
Answer: C. Increase the crane's effective support base and improve stability
Rationale: Properly deployed outriggers transfer loads to the ground and
provide a wider support footprint when the crane is designed for that
configuration.
10.Why must outrigger floats or pads be properly sized?
A. To increase hydraulic pressure
B. To distribute ground pressure and reduce the risk of ground failure
C. To make the crane easier to transport
D. To increase boom length