MAAE 2001 Final Exam Ultimate Pack | 370
Practice Q&As with Expert Solutions &
Descriptive Geometry Guide (Carleton
University Blueprint)2026-2027
• Ace your engineering graphics exam with the ultimate MAAE 2001 study resource. This
high-yield guide features 370 rigorous multiple-choice and descriptive geometry practice
questions modeled directly after engineering curriculum archives. Master complex topics
with detailed, step-by-step rationales for worst-case tolerance stack-ups, ISO metric
limits/fits, spur gear mechanics, and multi-view auxiliary projections. Perfect for
troubleshooting lab layouts and scoring an A+ on your finals!
Part I: Limits, Fits, and Tolerances (Questions 1–15)
1. Reference dimensions are included in engineering drawings primarily to:
• A) reference a particular feature to a drawing note.
• B) reference a particular dimension to an auxiliary view.
• C) eliminate arithmetic calculations for the reader.
• D) mandate strict quality control inspection limits.
• Rationale: Reference dimensions (indicated within parentheses) are provided for
information purposes only to prevent calculations, and they carry no manufacturing
tolerance.
2. The limits of a hole are 1.5000–1.5040 inches, and the limits of the mating
shaft are 1.4925–1.4950 inches. What is the allowance for this assembly?
• A) +0.0050 inches
• B) -0.0050 inches
• C) +0.0115 inches
• D) 0.0040 inches
• Rationale: Allowance is the tightest fit, calculated as minimum hole size minus
maximum shaft size. Here, 1.5000 - 1.4950 = +0.0050 inches.
3. Which term describes the condition where the algebraic difference between
the maximum limit of size and the corresponding basic size is calculated?
• A) Lower deviation
• B) Actual deviation
• C) Upper deviation
• D) Fundamental deviation
• Rationale: Upper deviation is defined mathematically as the maximum limit of size
minus the basic size.
, 4. When the maximum hole size is smaller than the minimum shaft size under all
manufacturing conditions, the resulting fit is classified as a:
• A) Clearance fit
• B) Transition fit
• C) Interference fit
• D) Line fit
• Rationale: An interference fit occurs when the mating parts always overlap
structurally, meaning the shaft is strictly larger than the hole.
5. A hole is dimensioned as 25.00 +0.03 / +0.01 mm. This tolerance
specification is an example of a:
• A) Bilateral tolerance
• B) Unilateral tolerance
• C) Limit tolerance
• D) Geometric tolerance
• Rationale: It is unilateral because both deviations vary in only one direction relative
to the nominal size (both are positive).
6. If a shaft is dimensioned as 50.00 ± 0.02 mm, what is the total tolerance zone
value of the shaft?
• A) 0.02 mm
• B) 0.04 mm
• C) 50.02 mm
• D) 49.98 mm
• Rationale: Total tolerance is the difference between the upper limit (50.02) and the
lower limit (49.98), which equals 0.04 mm.
7. In the metric ISO limits and fits system, a capital letter designation (such as
H7) always denotes the tolerance class of a:
• A) Shaft
• B) Hole
• C) Thread pitch
• D) Spline
• Rationale: Standard ISO fits use uppercase letters for internal features (holes) and
lowercase letters for external features (shafts).
8. For an ISO fit designated as H7/g6, the "H" indicates that the lower deviation
of the hole is:
• A) Equal to the tolerance
• B) Exactly zero
• C) Always negative
• D) Dependent on the shaft size
,• Rationale: The 'H' hole is the basis of the hole-basis system; its fundamental (lower)
deviation is exactly 0.
9. Which of the following fit combinations will always result in a transition fit?
• A) H7/g6
• B) H7/p6
• C) H7/js6
• D) H7/e8
• Rationale: The 'js' tolerance zone symmetrically overlaps zero, meaning the
assembly can result in either clearance or interference depending on the parts.
10. The system of limits and fits where the hole size is kept constant and different
fits are achieved by varying the shaft size is called the:
• A) Shaft-basis system
• B) Hole-basis system
• C) Bilateral system
• D) Basic-size system
• Rationale: In a hole-basis system, the minimal hole size is fixed at the basic size
(fundamental deviation H = 0) and the shaft changes.
11. What is the maximum material condition (MMC) of a shaft dimensioned as
12.50 ± 0.05 mm?
• A) 12.45 mm
• B) 12.50 mm
• C) 12.55 mm
• D) 12.60 mm
• Rationale: For an external feature like a shaft, maximum material condition occurs at
its largest allowable physical limit, which is 12.50 + 0.05 = 12.55 mm.
12. What is the least material condition (LMC) of a hole dimensioned as 30.00
+0.10 / +0.02 mm?
• A) 30.00 mm
• B) 30.02 mm
• C) 31.10 mm
• D) 29.98 mm
• Rationale: For an internal feature like a hole, the least material condition occurs
when the hole is at its largest allowable size: 30.00 + 0.10 = 31.10 mm.
13. The structural difference between the upper limit and lower limit of a single
manufactured feature is defined as its:
• A) Deviation
• B) Allowance
• C) Tolerance
, • D) Clearance
• Rationale: Tolerance is the absolute total permissible variation from the specified
nominal dimension.
14. When evaluating a clearance fit, the minimum clearance is mathematically
identical to the:
• A) Maximum clearance
• B) Allowance
• C) Tolerance sum
• D) Fundamental deviation of the hole
• Rationale: Minimum clearance is the tightest assembly condition, which matches the
definition of Allowance.
15. If a shaft is measured and found to have an actual deviation of zero, it means
the part is exactly at its:
• A) Maximum limit
• B) Minimum limit
• C) Basic size
• D) Virtual condition
• Rationale: Actual deviation is the difference between actual size and basic size. If it
is zero, the actual size equals the basic size.
Part II: Thread Specifications and Fasteners (Questions 16–25)
16. Consider a thread specified by M20 × 1.5–6H/5g6g. What does the value 1.5
represent?
• A) Major diameter
• B) Lead length
• C) Thread pitch
• D) Tolerance class
• Rationale: In an ISO metric thread callout, the number following the "×" dictates the
pitch of the thread in millimeters.
17. In the thread callout M20 × 1.5–6H/5g6g, what feature is controlled by the 6H
tolerance class?
• A) The internal thread
• B) The external thread
• C) The mating wash plate
• D) The tool length offset
• Rationale: Capital letters in thread classes designate internal threads (nuts/holes),
while lowercase letters designate external threads (bolts).
Practice Q&As with Expert Solutions &
Descriptive Geometry Guide (Carleton
University Blueprint)2026-2027
• Ace your engineering graphics exam with the ultimate MAAE 2001 study resource. This
high-yield guide features 370 rigorous multiple-choice and descriptive geometry practice
questions modeled directly after engineering curriculum archives. Master complex topics
with detailed, step-by-step rationales for worst-case tolerance stack-ups, ISO metric
limits/fits, spur gear mechanics, and multi-view auxiliary projections. Perfect for
troubleshooting lab layouts and scoring an A+ on your finals!
Part I: Limits, Fits, and Tolerances (Questions 1–15)
1. Reference dimensions are included in engineering drawings primarily to:
• A) reference a particular feature to a drawing note.
• B) reference a particular dimension to an auxiliary view.
• C) eliminate arithmetic calculations for the reader.
• D) mandate strict quality control inspection limits.
• Rationale: Reference dimensions (indicated within parentheses) are provided for
information purposes only to prevent calculations, and they carry no manufacturing
tolerance.
2. The limits of a hole are 1.5000–1.5040 inches, and the limits of the mating
shaft are 1.4925–1.4950 inches. What is the allowance for this assembly?
• A) +0.0050 inches
• B) -0.0050 inches
• C) +0.0115 inches
• D) 0.0040 inches
• Rationale: Allowance is the tightest fit, calculated as minimum hole size minus
maximum shaft size. Here, 1.5000 - 1.4950 = +0.0050 inches.
3. Which term describes the condition where the algebraic difference between
the maximum limit of size and the corresponding basic size is calculated?
• A) Lower deviation
• B) Actual deviation
• C) Upper deviation
• D) Fundamental deviation
• Rationale: Upper deviation is defined mathematically as the maximum limit of size
minus the basic size.
, 4. When the maximum hole size is smaller than the minimum shaft size under all
manufacturing conditions, the resulting fit is classified as a:
• A) Clearance fit
• B) Transition fit
• C) Interference fit
• D) Line fit
• Rationale: An interference fit occurs when the mating parts always overlap
structurally, meaning the shaft is strictly larger than the hole.
5. A hole is dimensioned as 25.00 +0.03 / +0.01 mm. This tolerance
specification is an example of a:
• A) Bilateral tolerance
• B) Unilateral tolerance
• C) Limit tolerance
• D) Geometric tolerance
• Rationale: It is unilateral because both deviations vary in only one direction relative
to the nominal size (both are positive).
6. If a shaft is dimensioned as 50.00 ± 0.02 mm, what is the total tolerance zone
value of the shaft?
• A) 0.02 mm
• B) 0.04 mm
• C) 50.02 mm
• D) 49.98 mm
• Rationale: Total tolerance is the difference between the upper limit (50.02) and the
lower limit (49.98), which equals 0.04 mm.
7. In the metric ISO limits and fits system, a capital letter designation (such as
H7) always denotes the tolerance class of a:
• A) Shaft
• B) Hole
• C) Thread pitch
• D) Spline
• Rationale: Standard ISO fits use uppercase letters for internal features (holes) and
lowercase letters for external features (shafts).
8. For an ISO fit designated as H7/g6, the "H" indicates that the lower deviation
of the hole is:
• A) Equal to the tolerance
• B) Exactly zero
• C) Always negative
• D) Dependent on the shaft size
,• Rationale: The 'H' hole is the basis of the hole-basis system; its fundamental (lower)
deviation is exactly 0.
9. Which of the following fit combinations will always result in a transition fit?
• A) H7/g6
• B) H7/p6
• C) H7/js6
• D) H7/e8
• Rationale: The 'js' tolerance zone symmetrically overlaps zero, meaning the
assembly can result in either clearance or interference depending on the parts.
10. The system of limits and fits where the hole size is kept constant and different
fits are achieved by varying the shaft size is called the:
• A) Shaft-basis system
• B) Hole-basis system
• C) Bilateral system
• D) Basic-size system
• Rationale: In a hole-basis system, the minimal hole size is fixed at the basic size
(fundamental deviation H = 0) and the shaft changes.
11. What is the maximum material condition (MMC) of a shaft dimensioned as
12.50 ± 0.05 mm?
• A) 12.45 mm
• B) 12.50 mm
• C) 12.55 mm
• D) 12.60 mm
• Rationale: For an external feature like a shaft, maximum material condition occurs at
its largest allowable physical limit, which is 12.50 + 0.05 = 12.55 mm.
12. What is the least material condition (LMC) of a hole dimensioned as 30.00
+0.10 / +0.02 mm?
• A) 30.00 mm
• B) 30.02 mm
• C) 31.10 mm
• D) 29.98 mm
• Rationale: For an internal feature like a hole, the least material condition occurs
when the hole is at its largest allowable size: 30.00 + 0.10 = 31.10 mm.
13. The structural difference between the upper limit and lower limit of a single
manufactured feature is defined as its:
• A) Deviation
• B) Allowance
• C) Tolerance
, • D) Clearance
• Rationale: Tolerance is the absolute total permissible variation from the specified
nominal dimension.
14. When evaluating a clearance fit, the minimum clearance is mathematically
identical to the:
• A) Maximum clearance
• B) Allowance
• C) Tolerance sum
• D) Fundamental deviation of the hole
• Rationale: Minimum clearance is the tightest assembly condition, which matches the
definition of Allowance.
15. If a shaft is measured and found to have an actual deviation of zero, it means
the part is exactly at its:
• A) Maximum limit
• B) Minimum limit
• C) Basic size
• D) Virtual condition
• Rationale: Actual deviation is the difference between actual size and basic size. If it
is zero, the actual size equals the basic size.
Part II: Thread Specifications and Fasteners (Questions 16–25)
16. Consider a thread specified by M20 × 1.5–6H/5g6g. What does the value 1.5
represent?
• A) Major diameter
• B) Lead length
• C) Thread pitch
• D) Tolerance class
• Rationale: In an ISO metric thread callout, the number following the "×" dictates the
pitch of the thread in millimeters.
17. In the thread callout M20 × 1.5–6H/5g6g, what feature is controlled by the 6H
tolerance class?
• A) The internal thread
• B) The external thread
• C) The mating wash plate
• D) The tool length offset
• Rationale: Capital letters in thread classes designate internal threads (nuts/holes),
while lowercase letters designate external threads (bolts).
