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Exam Review

Key Facts: CCT Exam

125

Scored Questions

ASQ

4h 18m

Exam Duration

ASQ

$360-460

Exam Fee

ASQ

5 yrs

Experience Required

ASQ

5

BoK Domains

ASQ 2024 BoK

Open Book

Exam Format

ASQ

The CCT has 125 scored questions (135 total) in 4h18m. Open book. Covers general metrology, measurement systems, calibration systems, uncertainty analysis, and quality standards including ISO/IEC 17025 and GUM.

Sample CCT Practice Questions

Try these sample questions to review concepts for the CCT exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1How many base SI units are defined in the International System of Units?
A.Five
B.Six
C.Seven
D.Eight
Explanation: The SI system defines exactly seven base units: meter (length), kilogram (mass), second (time), ampere (electric current), kelvin (thermodynamic temperature), candela (luminous intensity), and mole (amount of substance). All other units are derived from these seven. Recognizing this foundational count is essential for the CCT exam.
2Which SI base unit is used to measure thermodynamic temperature?
A.Celsius
B.Kelvin
C.Joule
D.Candela
Explanation: The kelvin (K) is the SI base unit for thermodynamic temperature. Celsius is a derived scale offset from kelvin by 273.15, making it a derived unit rather than a base unit. Joule measures energy, and candela measures luminous intensity.
3What is the SI derived unit for electrical resistance?
A.Ampere
B.Volt
C.Ohm
D.Siemens
Explanation: The ohm (Ω) is the SI derived unit for electrical resistance, defined as one volt per ampere (V/A). The ampere is an SI base unit measuring current. The volt measures electrical potential difference. The siemens (S) is the unit for electrical conductance, which is the reciprocal of resistance.
4A calibration laboratory measures a voltage of 0.005 V. How is this value expressed using SI multipliers?
A.5 mV
B.5 μV
C.5 kV
D.0.5 cV
Explanation: The prefix 'milli' (m) represents 10⁻³, so 0.005 V = 5 × 10⁻³ V = 5 mV. The prefix micro (μ) represents 10⁻⁶, which would give 5,000 μV — not the direct expression. Kilo represents 10³ (much larger), and centi (10⁻²) would give 0.5 cV but this prefix is not commonly used for voltage.
5Which fundamental constant defines the speed of light in a vacuum?
A.Planck's constant (h)
B.Avogadro constant (NA)
C.Speed of light (c)
D.Boltzmann constant (kB)
Explanation: The speed of light in a vacuum (c) is approximately 2.998 × 10⁸ m/s and is a fundamental constant used in the definition of the meter. Planck's constant relates energy to photon frequency, the Avogadro constant defines the number of entities in a mole, and the Boltzmann constant relates temperature to thermal energy.
6In the SI hierarchy of measurement standards, which type of standard is maintained by national metrology institutes such as NIST?
A.Working standard
B.Transfer standard
C.Primary standard
D.Reference standard
Explanation: Primary standards are the highest-level standards maintained by national metrology institutes (NMIs) like NIST in the United States. They define the unit with the lowest measurement uncertainty. Working standards are used in daily laboratory operations. Transfer standards are used to convey traceability between laboratories. Reference standards are intermediate between primary and working standards.
7A technician needs to calibrate a precision torque wrench but the preferred torque reference standard is unavailable. Which concept governs whether a different standard can be used?
A.Gage R&R
B.Substitution of standards
C.Interlaboratory comparison
D.Measurement assurance program
Explanation: Substitution of standards refers to the practice of assessing when and how calibration standards can be swapped based on measurement requirements, equipment availability, and specifications. The key considerations are that the substitute standard must have adequate accuracy and be traceable to SI. Gage R&R, interlaboratory comparisons, and MAP are measurement assurance activities, not standard-selection decisions.
8Convert 2.5 kilometers to meters.
A.25 m
B.250 m
C.2,500 m
D.25,000 m
Explanation: The prefix 'kilo' means 10³ (1,000). Therefore, 2.5 km = 2.5 × 1,000 m = 2,500 m. SI prefix conversions are fundamental to calibration work, where technicians routinely convert between unit scales for measurement and documentation.
9Traceability in metrology means that a measurement result can be related to a stated reference through:
A.A single calibration certificate issued by any laboratory
B.An unbroken chain of comparisons with stated uncertainties
C.Regular proficiency testing with at least five laboratories
D.Manufacturer specification sheets for the instrument
Explanation: Metrological traceability is the property of a measurement result whereby the result can be related to a reference through a documented, unbroken chain of calibrations, each contributing to the measurement uncertainty. This chain typically leads back to national or international standards (such as NIST or SI units). A single certificate, proficiency tests, or manufacturer specs alone do not establish traceability.
10What is the SI derived unit for pressure?
A.Newton
B.Pascal
C.Joule
D.Watt
Explanation: The pascal (Pa) is the SI derived unit for pressure, defined as one newton per square meter (N/m²). The newton is the unit of force. The joule is the unit of energy. The watt is the unit of power (energy per time). Pressure measurement is a core competency for calibration technicians.

About the CCT Exam

The CCT validates expertise in calibrating, testing, and maintaining electrical, mechanical, electromechanical, analytical, and electronic measuring instruments. Certified Calibration Technicians ensure IM&TE conforms to established standards such as ISO/IEC 17025 and ISO 10012.

Exam sponsor: American Society for Quality (ASQ). The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Questions

135 questions

Time Limit

4 hours 18 minutes

Passing Score

550 scaled points out of 750

Exam / Certification Fees

$360 (members) / $460 (non-members)

Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

24%

General Metrology

SI base and derived units, multipliers, fundamental constants, common measurements, traceability, measurement standards hierarchy

20.8%

Measurement Systems

Measurement methods, characteristics (repeatability, bias, linearity), error sources, IM&TE specifications, gage R&R, MAP

22.4%

Calibration Systems

Calibration procedures, adjustment methods (zeroing, spanning), environmental control, process flow, validation, records, certificates

20%

Measurement Uncertainty

TUR, TAR, guard-banding, PFA, PFR, Type A/B evaluation, RSS method, expanded uncertainty, coverage factors, applied math

12.8%

Quality Systems and Standards

ISO 9001, ISO/IEC 17025, ISO 10012, GUM, VIM, ILAC, quality tools, audits, corrective action, ethics, occupational safety

Preparing for the CCT Exam

What You Need to Know

  • Passing score: 550 scaled points out of 750
  • Exam length: 135 questions
  • Time limit: 4 hours 18 minutes
  • Exam / certification fees: $360 (members) / $460 (non-members) Official sources

Using Our Practice Resources

  • Work through all 100 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

CCT: Suggested Study Strategy

1Tab securely bound references before arrival; practice finding units, procedures, and uncertainty rules quickly.
2Calculate complete specification bounds, TUR, standard uncertainty, and guard-band decisions with units.
3Know the seven SI base units and the purpose of the six blueprint constants; ASQ says constant values and formulas are not tested.
4Distinguish Type A and Type B evaluation methods, corrections, error, and uncertainty.
5Practice across the five official domains using the 30/26/28/25/16 scored-question allocation.

Frequently Asked Questions

How many questions and how much time does the CCT exam have?

The English computer-based CCT exam has 135 multiple-choice questions: 125 scored and 10 unscored. Exam time is 4 hours 18 minutes within a 4.5-hour appointment. Paper delivery, where offered, has 125 questions and four hours.

What score is needed to pass the CCT?

ASQ publishes a passing scaled score of 550 out of 750. This is not a fixed raw percentage. ASQ’s published CCT pass rate was 61% in 2024; that historical rate does not predict an individual outcome.

What experience is required for the CCT?

Five years of full-time paid work in one or more CCT blueprint areas is required. An eligible technical-school or military/trade diploma or college/university degree can waive two years. Only one education waiver may be claimed.

Is the CCT open book, and can I use a calculator?

Yes. Bring securely bound references; ring binders and spiral binding are permitted. Loose sheets and hand-stapled packets without a secure cover are not permitted. Attach tabs and notes before arrival. ASQ permits qualifying silent, battery-powered, nonprogrammable calculators and an on-screen scientific calculator; check the current policy for your device.

What are the exam and retake fees?

The initial fee is $460 for nonmembers and $360 for ASQ members. The reduced retake fee is $260 within two years of the previous attempt. A retake cannot occur in the same testing window.

Does CCT certification expire?

CCT requires recertification every three years through the applicable ASQ recertification route. Confirm the current fees and requirements before renewal.