Alberta Heavy Equipment Technician Second Period AIT Exam QUESTIONS AND
CORRECT ANSWERS WITH RATIONALES
Exam coverage
• diesel engine service
• fuel systems
• hydraulic systems
• powertrain components
• electrical starting and charging
• steering and suspension
• brake systems
• preventive maintenance
• diagnostic testing
• workplace safety
,1. During a service situation, which option best describes why A diesel engine requires
appropriate fuel delivery, air supply, compression, and combustion conditions to
operate correctly.. Which answer best applies to the underlying heavy equipment
technician period 2 concept in this situation?
A. Hydraulic systems depend on clean fluid, correct pressure, flow, and properly maintained
components..
B. Charging and starting systems should be tested systematically using appropriate electrical
measurements..
C. A diesel engine requires appropriate fuel delivery, air supply, compression, and combustion
conditions to operate correctly..
D. Powertrain diagnosis should consider symptoms, operating conditions, and measured
evidence before component replacement..
Correct answer: C
Rationale: The correct choice directly states the governing principle: A diesel engine requires
appropriate fuel delivery, air supply, compression, and combustion conditions to operate
correctly.. The alternatives address related topics but do not directly answer the issue being
tested.
2. A technician is evaluating a condition; which response is most appropriate because
Hydraulic systems depend on clean fluid, correct pressure, flow, and properly
maintained components.. Which answer best applies to the underlying heavy
equipment technician period 2 concept in this situation?
,A. Powertrain diagnosis should consider symptoms, operating conditions, and measured
evidence before component replacement..
B. Hydraulic systems depend on clean fluid, correct pressure, flow, and properly maintained
components..
C. Charging and starting systems should be tested systematically using appropriate electrical
measurements..
D. Brake and steering components require inspection because failures can directly affect
machine control and stopping..
Correct answer: B
Rationale: The correct choice directly states the governing principle: Hydraulic systems
depend on clean fluid, correct pressure, flow, and properly maintained components.. The
alternatives address related topics but do not directly answer the issue being tested.
3. Which choice correctly identifies the main reason that Powertrain diagnosis should
consider symptoms, operating conditions, and measured evidence before component
replacement.. Which answer best applies to the underlying heavy equipment technician
period 2 concept in this situation?
A. Brake and steering components require inspection because failures can directly affect
machine control and stopping..
B. Powertrain diagnosis should consider symptoms, operating conditions, and measured
evidence before component replacement..
, C. Charging and starting systems should be tested systematically using appropriate electrical
measurements..
D. Preventive maintenance reduces avoidable failures by addressing lubrication, adjustments,
contamination, and wear..
Correct answer: B
Rationale: The correct choice directly states the governing principle: Powertrain diagnosis
should consider symptoms, operating conditions, and measured evidence before component
replacement.. The alternatives address related topics but do not directly answer the issue
being tested.
4. When reviewing this equipment, which statement best applies because Charging and
starting systems should be tested systematically using appropriate electrical
measurements.. Which answer best applies to the underlying heavy equipment
technician period 2 concept in this situation?
A. Diagnostic testing is most useful when measurements are compared with known
specifications or expected operating values..
B. Brake and steering components require inspection because failures can directly affect
machine control and stopping..
C. Charging and starting systems should be tested systematically using appropriate electrical
measurements..
D. Preventive maintenance reduces avoidable failures by addressing lubrication, adjustments,
contamination, and wear..
CORRECT ANSWERS WITH RATIONALES
Exam coverage
• diesel engine service
• fuel systems
• hydraulic systems
• powertrain components
• electrical starting and charging
• steering and suspension
• brake systems
• preventive maintenance
• diagnostic testing
• workplace safety
,1. During a service situation, which option best describes why A diesel engine requires
appropriate fuel delivery, air supply, compression, and combustion conditions to
operate correctly.. Which answer best applies to the underlying heavy equipment
technician period 2 concept in this situation?
A. Hydraulic systems depend on clean fluid, correct pressure, flow, and properly maintained
components..
B. Charging and starting systems should be tested systematically using appropriate electrical
measurements..
C. A diesel engine requires appropriate fuel delivery, air supply, compression, and combustion
conditions to operate correctly..
D. Powertrain diagnosis should consider symptoms, operating conditions, and measured
evidence before component replacement..
Correct answer: C
Rationale: The correct choice directly states the governing principle: A diesel engine requires
appropriate fuel delivery, air supply, compression, and combustion conditions to operate
correctly.. The alternatives address related topics but do not directly answer the issue being
tested.
2. A technician is evaluating a condition; which response is most appropriate because
Hydraulic systems depend on clean fluid, correct pressure, flow, and properly
maintained components.. Which answer best applies to the underlying heavy
equipment technician period 2 concept in this situation?
,A. Powertrain diagnosis should consider symptoms, operating conditions, and measured
evidence before component replacement..
B. Hydraulic systems depend on clean fluid, correct pressure, flow, and properly maintained
components..
C. Charging and starting systems should be tested systematically using appropriate electrical
measurements..
D. Brake and steering components require inspection because failures can directly affect
machine control and stopping..
Correct answer: B
Rationale: The correct choice directly states the governing principle: Hydraulic systems
depend on clean fluid, correct pressure, flow, and properly maintained components.. The
alternatives address related topics but do not directly answer the issue being tested.
3. Which choice correctly identifies the main reason that Powertrain diagnosis should
consider symptoms, operating conditions, and measured evidence before component
replacement.. Which answer best applies to the underlying heavy equipment technician
period 2 concept in this situation?
A. Brake and steering components require inspection because failures can directly affect
machine control and stopping..
B. Powertrain diagnosis should consider symptoms, operating conditions, and measured
evidence before component replacement..
, C. Charging and starting systems should be tested systematically using appropriate electrical
measurements..
D. Preventive maintenance reduces avoidable failures by addressing lubrication, adjustments,
contamination, and wear..
Correct answer: B
Rationale: The correct choice directly states the governing principle: Powertrain diagnosis
should consider symptoms, operating conditions, and measured evidence before component
replacement.. The alternatives address related topics but do not directly answer the issue
being tested.
4. When reviewing this equipment, which statement best applies because Charging and
starting systems should be tested systematically using appropriate electrical
measurements.. Which answer best applies to the underlying heavy equipment
technician period 2 concept in this situation?
A. Diagnostic testing is most useful when measurements are compared with known
specifications or expected operating values..
B. Brake and steering components require inspection because failures can directly affect
machine control and stopping..
C. Charging and starting systems should be tested systematically using appropriate electrical
measurements..
D. Preventive maintenance reduces avoidable failures by addressing lubrication, adjustments,
contamination, and wear..
