EICA Mobile Crane & Digger
Derrick | Study Guide (Latest
2026/2027 Update) Questions &
Answers | Grade A | 100% Correct
Description
This EICA (Electrical Industry Certification Association) Mobile
Crane & Digger Derrick exam certifies operators in the
electrical industry through this written test. The exams evaluate
knowledge and skill in safe operation, load chart interpretation,
inspection, and site setup according to OSHA regulations and
industry standards.
Written Exam Components
General Knowledge Exam: Covers safety, power systems,
electrical line operations, travel, setup, and shutdown
procedures.
Practical Exam Components (Digger Derrick/Crane)
NB The practical exam, which often uses the actual equipment, typically consists of
these key tasks:
Pre-Operational Inspection: Identifying 19 specific inspection items.
Site Setup & Leveling: Properly setting up the machine on a site.
Hand Signals: Interpreting and responding to standard signals.
1
, Operational Tasks: Maneuvering, load handling (including "touch and
go" exercises), and, for digger derricks, pole handling and digging
operations.
Securement: Returning the unit to a "road ready" condition.
Quiz_________________?
If not overloaded, the ground bearing pressure of a single outrigger pad
can approach a weight equal to:
Answer
85% of the weight of the crane and 100% of the suspended load
Quiz_________________?
If you move a crawler crane from soft ground to harder ground,
ground bearing pressure will -
Answer
increase
Quiz_________________?
On a crawler crane, ground bearing pressure is greatest when hoisting
where? -
Answer
over the corner
2
, Quiz_________________?
If an outrigger pad has 45,000 pounds applied to it and the pad
measures 2ft x 2ft how many psi is it applying to the ground? -
Answer
78 PSI
Quiz_________________?
How much area would be required for 45,000 pounds to create only 20
PSI? -
Answer
2,250 square inches
Quiz_________________?
Why use mats or cribbing? -
Answer
To reduce ground bearing pressure
Quiz_________________?
What is the purpose of placing blocking or pads under the outrigger
floats? -
3
, Answer
Distribute the force over a larger area
Quiz_________________?
While swinging a heavy load with a crane set up on outriggers and the
operator swings over one of the outriggers, that outrigger must be able
to support -
Answer
85% of the weight of the crane and 100% of the weight of the load
Quiz_________________?
What is the first thing an operator should do before traveling under a
low pipe rack or obstruction? -
Answer
post a signalperson to check clearances
Quiz_________________?
According to OSHA, when traveling under an energized power line,
what is the minimum distance for a line with over 750kv? -
Answer
20ft
4
Derrick | Study Guide (Latest
2026/2027 Update) Questions &
Answers | Grade A | 100% Correct
Description
This EICA (Electrical Industry Certification Association) Mobile
Crane & Digger Derrick exam certifies operators in the
electrical industry through this written test. The exams evaluate
knowledge and skill in safe operation, load chart interpretation,
inspection, and site setup according to OSHA regulations and
industry standards.
Written Exam Components
General Knowledge Exam: Covers safety, power systems,
electrical line operations, travel, setup, and shutdown
procedures.
Practical Exam Components (Digger Derrick/Crane)
NB The practical exam, which often uses the actual equipment, typically consists of
these key tasks:
Pre-Operational Inspection: Identifying 19 specific inspection items.
Site Setup & Leveling: Properly setting up the machine on a site.
Hand Signals: Interpreting and responding to standard signals.
1
, Operational Tasks: Maneuvering, load handling (including "touch and
go" exercises), and, for digger derricks, pole handling and digging
operations.
Securement: Returning the unit to a "road ready" condition.
Quiz_________________?
If not overloaded, the ground bearing pressure of a single outrigger pad
can approach a weight equal to:
Answer
85% of the weight of the crane and 100% of the suspended load
Quiz_________________?
If you move a crawler crane from soft ground to harder ground,
ground bearing pressure will -
Answer
increase
Quiz_________________?
On a crawler crane, ground bearing pressure is greatest when hoisting
where? -
Answer
over the corner
2
, Quiz_________________?
If an outrigger pad has 45,000 pounds applied to it and the pad
measures 2ft x 2ft how many psi is it applying to the ground? -
Answer
78 PSI
Quiz_________________?
How much area would be required for 45,000 pounds to create only 20
PSI? -
Answer
2,250 square inches
Quiz_________________?
Why use mats or cribbing? -
Answer
To reduce ground bearing pressure
Quiz_________________?
What is the purpose of placing blocking or pads under the outrigger
floats? -
3
, Answer
Distribute the force over a larger area
Quiz_________________?
While swinging a heavy load with a crane set up on outriggers and the
operator swings over one of the outriggers, that outrigger must be able
to support -
Answer
85% of the weight of the crane and 100% of the weight of the load
Quiz_________________?
What is the first thing an operator should do before traveling under a
low pipe rack or obstruction? -
Answer
post a signalperson to check clearances
Quiz_________________?
According to OSHA, when traveling under an energized power line,
what is the minimum distance for a line with over 750kv? -
Answer
20ft
4
