New Mexico MM-98 Mechanical Contractor Exam Prep

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Business & Law is half off with this classification. Add it only if you want it, for the same term: $49.50 for 30 days, $64.50 for 60 days, $84.50 for 90 days.

Official sitting

Questions100
Time4 hours 10 minutes
Passing score75%

Confirm question count, time, open-book rules, and passing score on the live board bulletin before you sit. We do not guarantee a passing result. Source: PSI New Mexico contractor CIB bulletin 808, updated 4/3/2026; NMAC 14.6.6.11.

What’s included

20,000+ word study guide

Worked calculations, code-section breakdowns, exam traps, a key-terms glossary and a 30/60/90-day plan.

4 full-length practice exams

Original questions weighted to match the topic mix of the real exam.

400 practice questions

Every one with a written explanation and the code section behind the answer.

Same study guide and four exams on every term. You are choosing how long you can log in.

Instant accessSecure checkoutBuilt on current codes
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What this prep covers

  1. How the four MM-98 papers are actually scored
  2. Which book is in which room
  3. MM-1 drainage, waste, and vents
  4. MM-1 water, backflow, fixtures, and storm
  5. MM-2 gas piping and gas sizing
  6. MM-3 heat, refrigeration, and ducts
  7. MM-4 process piping, boilers, and suppression
  8. Worked figures, and the cards that use different numbers
  9. What these four papers try to swap
  10. How to read an MM-1 isometric without rushing
  11. Drainage sizing as a sequence, not a guess
  12. Water heaters and supply details MM-1 keeps asking
  13. A full gas-sizing pass for MM-2
  14. The refrigeration circuit MM-3 expects you to walk
  15. Boilers, steam, and the suppression arithmetic on MM-4
  16. Sitting the right part on the right day

…and 9 further sections in the full guide.

Other New Mexico exam prep

New Mexico MM-98 Mechanical Contractor exam — common questions

Who administers the New Mexico MM-98 Mechanical Contractor exam?

The New Mexico MM-98 Mechanical (four PSI parts) is administered by PSI NM contractor bulletin 808, copyright 2026, updated 4/3/2026. Four separate open-book parts, each fee $68.88. MM-1 plumbing 100 Q / 250 min / 75% (75). MM-2 natural gas 100 / 255 / 75. MM-3 HVAC 100 / 245 / 75. MM-4 process pipe 90 / 235 / 75% (68 of 90). Not one combination clock. B&L separate 50/130/75. Exam books are the 2021 UPC and UMC and the NMAC volumes the bulletin dates 2015, not the 2024 permit codes, unless a newer bulletin replaces 808. MM-4 does not allow the UPC. MM-1 does not allow OSHA 1926 or the plumber math textbook..

How many questions are on the New Mexico MM-98 Mechanical Contractor exam?

The exam contains 100 questions. You need 75% to pass. You are allowed 4.2 hours.

How much practice does this prep include?

It includes 4 full-length practice exams and 400 practice questions in total. Every question has a written explanation naming the code section the answer comes from.

How long is the study guide?

The New Mexico MM-98 Mechanical Contractor guide runs to roughly 20,502 words, covering 25 sections from licensing rules through worked calculations and solved exam questions.

How long do I get access?

Choose 30, 60 or 90 days at checkout. Access begins the moment you enrol, works on any device, and you can retake every practice exam as often as you like. Days remaining are shown in your dashboard and you can extend at any time.

Is this an official New Mexico MM-98 Mechanical Contractor exam?

No. This is independent preparation material. It is not affiliated with or endorsed by any state licensing board or exam vendor, and it does not contain real exam questions. Always confirm current requirements with your licensing board.

About this New Mexico MM-98 Mechanical Contractor prep

This prep is built specifically for the New Mexico MM-98 Mechanical Contractor examination and includes a 20,000+-word study guide written for this exam, 4 full-length practice exams and 400 practice questions, each with a written explanation.

The New Mexico MM-98 Mechanical (four PSI parts) is administered by PSI NM contractor bulletin 808, copyright 2026, updated 4/3/2026. Four separate open-book parts, each fee $68.88. MM-1 plumbing 100 Q / 250 min / 75% (75). MM-2 natural gas 100 / 255 / 75. MM-3 HVAC 100 / 245 / 75. MM-4 process pipe 90 / 235 / 75% (68 of 90). Not one combination clock. B&L separate 50/130/75. Exam books are the 2021 UPC and UMC and the NMAC volumes the bulletin dates 2015, not the 2024 permit codes, unless a newer bulletin replaces 808. MM-4 does not allow the UPC. MM-1 does not allow OSHA 1926 or the plumber math textbook.. This prep is written to that board’s current scope, not to a generic national syllabus.

The real New Mexico MM-98 Mechanical Contractor exam contains 100 questions, with a passing score of 75%. Our practice exams mirror that structure so the format is familiar before you sit it.

Topics covered

  • How the four MM-98 papers are actually scored
  • Which book is in which room
  • MM-1 drainage, waste, and vents
  • MM-1 water, backflow, fixtures, and storm
  • MM-2 gas piping and gas sizing
  • MM-3 heat, refrigeration, and ducts
  • MM-4 process piping, boilers, and suppression
  • Worked figures, and the cards that use different numbers
  • What these four papers try to swap
  • How to read an MM-1 isometric without rushing
  • Drainage sizing as a sequence, not a guess
  • Water heaters and supply details MM-1 keeps asking
  • A full gas-sizing pass for MM-2
  • The refrigeration circuit MM-3 expects you to walk
  • Boilers, steam, and the suppression arithmetic on MM-4
  • Sitting the right part on the right day
  • Testing, support, and the materials MM-1 actually grades
  • Fixtures, clearances, and the water heater as a plumbing appliance
  • Interceptors, primers, and where the septic rules take over
  • Categories, common vents, and combustion air that can actually breathe

How access works

You are paying for access length (30, 60, or 90 days). The study guide and four timed exams are the same on every term. Access starts when you enrol and works on any device for that term.

Not affiliated with or endorsed by any state licensing board or exam vendor. For exam-preparation purposes only.