Register
Home Quizzes Quiz Detail
Practice Quiz

ASE H7 HVAC (Transit Bus) Practice Questions - ASE H7 - Heating, Ventilation & Air Conditioning (Transit Bus) Certification Exam

100 questions 5.0 rating Mobile friendly
$69.00

Unlock the full practice quiz

Get complete access to the questions, explanations and printable quiz resources.

Full access: unlock all quiz questions and explanations.
Printable review: access the full quiz PDF with correct answers after purchase.

About this Exam

Prepare with the ASE H7 HVAC (Transit Bus) Practice Questions - ASE H7 - Heating, Ventilation & Air Conditioning (Transit Bus) Certification Exam practice quiz. This question bank includes 100 questions covering refrigerant, transit-bus, compressor, tech, and says. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

Sample Questions

Question 1
A transit bus roof-mounted A/C unit will not cool. The technician's first step before connecting manifold gauges should be to:
Verify the compressor clutch or open-drive belt engages and the evaporator/condenser fans run
Recover all refrigerant from the system
Replace the receiver-drier
Add one pound of R-134a to the system
Question 2
On a large transit-bus A/C system, refrigerant charge is most accurately set by:
Sight glass clarity only
Charging by weight to the OEM specification
Filling until the low side reaches 30 psi
Adding refrigerant until frost forms on the accumulator
Question 3
Tech A says R-134a and R-1234yf must never be mixed in the same system. Tech B says each refrigerant requires its own dedicated recovery/recycling equipment and service fittings. Who is correct?
Tech A only
Tech B only
Both Tech A and Tech B
Neither
Question 4
A high subcooling reading at the condenser outlet on a TXV transit-bus system, combined with a high head pressure, most likely indicates:
Low refrigerant charge
A stuck-open TXV
A failed evaporator blower
Refrigerant overcharge or restricted condenser airflow
Question 5
Which lubricant is correct for an R-134a transit-bus A/C compressor specified for PAG oil?
Polyalkylene glycol (PAG) oil of the OEM-specified viscosity
Mineral oil
Brake fluid
SAE 30 engine oil

Ready to test your knowledge?

Buy Now to Access

Additional Information

ASE H7 HVAC (Transit Bus) Practice Questions - ASE H7 - Heating, Ventilation & Air Conditioning (Transit Bus) Certification Exam

This practice set contains 100 questions from the matching question bank and focuses on refrigerant, transit-bus, compressor, tech, and says. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

Related Quizzes

2026 FFM Agent Broker Certification Practice Exam
150 Qs  |  0 Min
3CX Academy Advanced Certification Practice Exam
50 Qs  |  0 Min
3CX Academy Basic Certification Practice Exam
81 Qs  |  0 Min
3CX Intermediate Certification Practice Exam
30 Qs  |  0 Min
Ultimate Study Guide for the Argus Certification Practice Test
50 Qs  |  0 Min

Frequently Asked Questions

This quiz contains a total of 100 practice questions carefully selected to test your knowledge on this subject.
Yes, you will have exactly 0 minutes to complete the exam. A countdown timer will be visible once you start.
Yes, you can retake this practice test as many times as you need. The questions and options may be randomized on subsequent attempts to ensure comprehensive learning.

Reviews

5.0

Based on 0 reviews

Leave a Review

No reviews yet. Be the first to review!