
MASS Practice Test
Updated for October 2026The MASS test is administered by individual utility companies. Your score on the MASS exam is often transferable between different utility companies that use the EEI testing standard, valid for several years.

MASS Practice Test Questions
Prepare for the MASS - Test exam with our free practice test modules. Each quiz covers key topics to help you pass on your first try.
MASS Test Dig Safe Regulations
MASS Exam Questions covering Test Dig Safe Regulations. Master MASS Test concepts for certification prep.
MASS Test Equipment Components and Inspection
Free MASS Practice Test featuring Test Equipment Components and Inspection. Improve your MASS Exam score with mock test prep.
MASS Test Load Charts and Capacity
MASS Mock Exam on Test Load Charts and Capacity. MASS Study Guide questions to pass on your first try.
MASS Test MA Laws and Regulations
MASS Test Prep for Test MA Laws and Regulations. Practice MASS Quiz questions and boost your score.
MASS Test Safe Operating Procedures
MASS Questions and Answers on Test Safe Operating Procedures. Free MASS practice for exam readiness.
MASS Test Standard Hand Signals
MASS Mock Test covering Test Standard Hand Signals. Online MASS Test practice with instant feedback.
MASS Aptitude Test
MASS Practice Questions for Aptitude Test. Build confidence for your MASS certification exam.
MASS Assembling Objects
MASS Test Online for Assembling Objects. Free practice with instant results and feedback.
MASS Dig Safe Regulations
MASS Study Material on Dig Safe Regulations. Prepare effectively with real exam-style questions.
MASS Electrical Safety and Power Line Awar...
Free MASS Test covering Electrical Safety and Power Line Awareness. Practice and track your MASS exam readiness.
MASS Equipment Components and Inspection
MASS Exam Questions covering Equipment Components and Inspection. Master MASS Test concepts for certification prep.
MASS Load Charts and Capacity
Free MASS Practice Test featuring Load Charts and Capacity. Improve your MASS Exam score with mock test prep.
MASS MA Laws and Regulations
MASS Mock Exam on MA Laws and Regulations. MASS Study Guide questions to pass on your first try.
MASS Test Rigging and Slings
MASS Test Prep for MASS Test Rigging and Slings. Practice MASS Quiz questions and boost your score.
MASS Mathematical Usage
MASS Mock Test covering Mathematical Usage. Online MASS Test practice with instant feedback.
MASS Mechanical Concepts
MASS Practice Questions for Mechanical Concepts. Build confidence for your MASS certification exam.
MASS Power Plant Safety
MASS Test Online for Power Plant Safety. Free practice with instant results and feedback.
MASS Safe Operating Procedures
MASS Study Material on Safe Operating Procedures. Prepare effectively with real exam-style questions.
MASS Spatial Reasoning Principles
Free MASS Test covering Spatial Reasoning Principles. Practice and track your MASS exam readiness.
MASS Standard Hand Signals
MASS Exam Questions covering Standard Hand Signals. Master MASS Test concepts for certification prep.
MASS Technical Reading Comprehension
Free MASS Practice Test featuring Technical Reading Comprehension. Improve your MASS Exam score with mock test prep.
MASS Test Assembling Objects
MASS Mock Exam on Test Assembling Objects. MASS Study Guide questions to pass on your first try.
MASS Test Mathematical Usage
MASS Test Prep for Test Mathematical Usage. Practice MASS Quiz questions and boost your score.
MASS Test Mechanical Concepts
MASS Questions and Answers on Test Mechanical Concepts. Free MASS practice for exam readiness.
MASS Test Power Plant Safety
MASS Mock Test covering Test Power Plant Safety. Online MASS Test practice with instant feedback.
MASS Exam Flashcards
Quick review for the Maintenance Positions Selection System
๐ง What does the MASS test measure?
The MASS test measures aptitude for power plant maintenance jobs like mechanics and electricians.
START MASS PRACTICE TEST๐งWhat are the 4 main sections?
The four sections are Assembly, Mechanical Concepts, Reading Comprehension, and Math Usage.
GET MASS EXAM PREPโฑ๏ธHow long is the MASS exam?
The total testing time is approximately 4 hours, including instructions and breaks.
REVIEW MASS QUESTIONSโ๏ธWhat is Mechanical Concepts?
It tests understanding of basic mechanical principles like gears, pulleys, and levers.
TRY MASS MOCK EXAM๐Is reading comprehension hard?
It involves reading technical passages and answering questions to test information retention.
ACCESS MASS STUDY GUIDE๐ขCan I use a calculator?
No, calculators are generally not permitted on the MASS Math Usage section.
PRACTICE MASS TEST NOWMASS Exam Study Guide
This comprehensive MASS study guide helps you understand the key components of the EEI MASS test.
MASS Score Calculator
Total Scored Questions
150
105 out of 150 correct
70%
Required to Pass: ~70% (Estimated)
Since the utility company covers the MASS test fee, your only investment is in preparation materials to ensure you pass.

MASS Test Day Checklist
- โValid Photo ID
- โConfirmation Email
- โArrive 30mins Early
- โNo Calculator (usually)
- โGlasses (if needed)
- โComfortable Clothes
- โWater Bottle
- โPositive Mindset
Ready to Pass the MASS Exam?
Join thousands of successful candidates who used our MASS practice test to launch their careers in the power industry.
MASS Renewal Requirements
Validity
Varies
Transferable
Yes
Passing the MASS exam at one EEI-member utility often qualifies you at others, meaning you may not need to retest when changing jobs.
- +Industry-recognized credential boosts your resume
- +Higher earning potential (10-20% salary increase on average)
- +Demonstrates commitment to professional development
- +Opens doors to advanced career opportunities
- โExam preparation requires significant time investment (4-8 weeks)
- โCertification fees can be $100-$400+
- โMay require continuing education to maintain
- โSome employers may not require certification
Sample MASS Test Practice Questions
Try these questions from our free MASS Test practice tests. The correct answer and an explanation follow each question.
Why is a permit-to-work system used for high-risk maintenance tasks?
- A. To slow down production
- B. To formally document hazards, controls, and authorization before work begins
- C. To assign parking spaces
- D. To track lunch breaks
Answer: B. To formally document hazards, controls, and authorization before work begins
Permit-to-work ensures hazards are identified and controls authorized so work proceeds only under safe conditions.
If a load chart lists capacities for 'fully extended outriggers,' using mid-extended outriggers means you must:
- A. Use the lower mid-extended capacity column instead
- B. Use the same numbers
- C. Increase the rated capacity
- D. Ignore the outrigger setting
Answer: A. Use the lower mid-extended capacity column instead
Reduced outrigger spread narrows the stability base, so a separate, lower capacity column applies.
Which of the figures below is a rotation of the original figure and NOT a mirror image? (Image showing one original asymmetrical 3D object and four other 3D objects would be here)
- A. Figure A
- B. Figure B
- C. Figure C
- D. Figure D
Answer: B. Figure B
Figure B is the only object that can be achieved by rotating the original object in space. Figures A, C, and D are mirror images (or enantiomorphs), meaning their features are reversed as if seen in a mirror, and they cannot be superimposed on the original through rotation alone.
An operator has a valid Dig Safe ticket and a yellow line has been painted on the ground, indicating a natural gas pipeline. What is the mandatory procedure for digging within the 'tolerance zone' of this marking?
- A. The operator may use a small backhoe bucket if a spotter is present.
- B. Excavation must be performed using non-mechanical means, such as hand digging.
- C. Mechanical digging is permitted as long as it does not go deeper than the frost line.
- D. The gas company must be on-site to supervise any mechanical excavation.
Answer: B. Excavation must be performed using non-mechanical means, such as hand digging.
The tolerance zone is defined as the width of the utility plus 18 inches on each side. Within this zone, Massachusetts law explicitly prohibits the use of mechanized equipment to prevent damage. Excavators must use non-mechanical means, like hand tools or vacuum excavation, to carefully expose the utility.
MASS Questions and Answers
About the Author

Certified Professional Development Expert & Niche Certification Advisor
University of Pennsylvania Graduate School of EducationDr. Alexandra Kim holds a PhD in Professional Studies from the University of Pennsylvania and is a Certified Professional in Learning and Performance (CPLP) and Certified Professional in Talent Development (CPTD). With 17 years of corporate training and professional certification advisory experience, she helps professionals navigate specialized, emerging, and cross-industry certification programs.
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