Alberta Heavy Equipment Technician Fourth Period AIT Exam QUESTIONS AND
CORRECT ANSWERS WITH RATIONALES
Exam coverage
• advanced engine diagnosis
• hydraulic troubleshooting
• transmissions and final drives
• electronic control systems
• emissions systems
• electrical troubleshooting
• failure analysis
• component rebuilding
• service information
• safe repair practices
,1. Which choice correctly identifies the main reason that Advanced diagnosis combines
symptoms, electronic data, hydraulic measurements, and mechanical inspection to
identify root causes.. Which answer best applies to the underlying heavy equipment
technician period 4 concept in this situation?
A. Electronic control systems must be evaluated using wiring diagrams, diagnostic data, and
appropriate test equipment..
B. Transmission and final-drive diagnosis requires attention to lubrication, pressures,
temperatures, noise, and operating behavior..
C. Advanced diagnosis combines symptoms, electronic data, hydraulic measurements, and
mechanical inspection to identify root causes..
D. Hydraulic faults can involve restrictions, leakage, incorrect pressure, contamination, or
component failure..
Correct answer: C
Rationale: The correct choice directly states the governing principle: Advanced diagnosis
combines symptoms, electronic data, hydraulic measurements, and mechanical inspection to
identify root causes.. The alternatives address related topics but do not directly answer the
issue being tested.
2. When reviewing this equipment, which statement best applies because Hydraulic
faults can involve restrictions, leakage, incorrect pressure, contamination, or
component failure.. Which answer best applies to the underlying heavy equipment
technician period 4 concept in this situation?
,A. Hydraulic faults can involve restrictions, leakage, incorrect pressure, contamination, or
component failure..
B. Emissions systems require correct sensors, dosing or regeneration conditions, and fault
diagnosis..
C. Electronic control systems must be evaluated using wiring diagrams, diagnostic data, and
appropriate test equipment..
D. Transmission and final-drive diagnosis requires attention to lubrication, pressures,
temperatures, noise, and operating behavior..
Correct answer: A
Rationale: The correct choice directly states the governing principle: Hydraulic faults can
involve restrictions, leakage, incorrect pressure, contamination, or component failure.. The
alternatives address related topics but do not directly answer the issue being tested.
3. A supervisor asks which practice should guide the work when Transmission and
final-drive diagnosis requires attention to lubrication, pressures, temperatures, noise,
and operating behavior.. Which answer best applies to the underlying heavy equipment
technician period 4 concept in this situation?
A. Failure analysis should connect observed damage with operating conditions, maintenance
history, and likely causes..
B. Electronic control systems must be evaluated using wiring diagrams, diagnostic data, and
appropriate test equipment..
, C. Transmission and final-drive diagnosis requires attention to lubrication, pressures,
temperatures, noise, and operating behavior..
D. Emissions systems require correct sensors, dosing or regeneration conditions, and fault
diagnosis..
Correct answer: C
Rationale: The correct choice directly states the governing principle: Transmission and
final-drive diagnosis requires attention to lubrication, pressures, temperatures, noise, and
operating behavior.. The alternatives address related topics but do not directly answer the
issue being tested.
4. Which explanation best connects the technical requirement with its practical purpose
when Electronic control systems must be evaluated using wiring diagrams, diagnostic
data, and appropriate test equipment.. Which answer best applies to the underlying
heavy equipment technician period 4 concept in this situation?
A. Failure analysis should connect observed damage with operating conditions, maintenance
history, and likely causes..
B. Emissions systems require correct sensors, dosing or regeneration conditions, and fault
diagnosis..
C. Component rebuilding requires dimensional inspection, correct parts, cleanliness, and
specified assembly procedures..
D. Electronic control systems must be evaluated using wiring diagrams, diagnostic data, and
appropriate test equipment..
CORRECT ANSWERS WITH RATIONALES
Exam coverage
• advanced engine diagnosis
• hydraulic troubleshooting
• transmissions and final drives
• electronic control systems
• emissions systems
• electrical troubleshooting
• failure analysis
• component rebuilding
• service information
• safe repair practices
,1. Which choice correctly identifies the main reason that Advanced diagnosis combines
symptoms, electronic data, hydraulic measurements, and mechanical inspection to
identify root causes.. Which answer best applies to the underlying heavy equipment
technician period 4 concept in this situation?
A. Electronic control systems must be evaluated using wiring diagrams, diagnostic data, and
appropriate test equipment..
B. Transmission and final-drive diagnosis requires attention to lubrication, pressures,
temperatures, noise, and operating behavior..
C. Advanced diagnosis combines symptoms, electronic data, hydraulic measurements, and
mechanical inspection to identify root causes..
D. Hydraulic faults can involve restrictions, leakage, incorrect pressure, contamination, or
component failure..
Correct answer: C
Rationale: The correct choice directly states the governing principle: Advanced diagnosis
combines symptoms, electronic data, hydraulic measurements, and mechanical inspection to
identify root causes.. The alternatives address related topics but do not directly answer the
issue being tested.
2. When reviewing this equipment, which statement best applies because Hydraulic
faults can involve restrictions, leakage, incorrect pressure, contamination, or
component failure.. Which answer best applies to the underlying heavy equipment
technician period 4 concept in this situation?
,A. Hydraulic faults can involve restrictions, leakage, incorrect pressure, contamination, or
component failure..
B. Emissions systems require correct sensors, dosing or regeneration conditions, and fault
diagnosis..
C. Electronic control systems must be evaluated using wiring diagrams, diagnostic data, and
appropriate test equipment..
D. Transmission and final-drive diagnosis requires attention to lubrication, pressures,
temperatures, noise, and operating behavior..
Correct answer: A
Rationale: The correct choice directly states the governing principle: Hydraulic faults can
involve restrictions, leakage, incorrect pressure, contamination, or component failure.. The
alternatives address related topics but do not directly answer the issue being tested.
3. A supervisor asks which practice should guide the work when Transmission and
final-drive diagnosis requires attention to lubrication, pressures, temperatures, noise,
and operating behavior.. Which answer best applies to the underlying heavy equipment
technician period 4 concept in this situation?
A. Failure analysis should connect observed damage with operating conditions, maintenance
history, and likely causes..
B. Electronic control systems must be evaluated using wiring diagrams, diagnostic data, and
appropriate test equipment..
, C. Transmission and final-drive diagnosis requires attention to lubrication, pressures,
temperatures, noise, and operating behavior..
D. Emissions systems require correct sensors, dosing or regeneration conditions, and fault
diagnosis..
Correct answer: C
Rationale: The correct choice directly states the governing principle: Transmission and
final-drive diagnosis requires attention to lubrication, pressures, temperatures, noise, and
operating behavior.. The alternatives address related topics but do not directly answer the
issue being tested.
4. Which explanation best connects the technical requirement with its practical purpose
when Electronic control systems must be evaluated using wiring diagrams, diagnostic
data, and appropriate test equipment.. Which answer best applies to the underlying
heavy equipment technician period 4 concept in this situation?
A. Failure analysis should connect observed damage with operating conditions, maintenance
history, and likely causes..
B. Emissions systems require correct sensors, dosing or regeneration conditions, and fault
diagnosis..
C. Component rebuilding requires dimensional inspection, correct parts, cleanliness, and
specified assembly procedures..
D. Electronic control systems must be evaluated using wiring diagrams, diagnostic data, and
appropriate test equipment..
