AutoQuiz is edited by Joel Don, ISA’s social media community manager.


Today’s automation industry quiz question comes from the ISA Certified Automation Professional certification program. ISA CAP certification provides a non-biased, third-party, objective assessment and confirmation of an automation professional’s skills. The CAP exam is focused on direction, definition, design, development/application, deployment, documentation, and support of systems, software, and equipment used in control systems, manufacturing information systems, systems integration, and operational consulting. Click this link for more information about the CAP program.


Nonincendive-rated field wiring is allowed to be used in which of the following combinations of hazardous area classifications?

a) Class 1, Division 2 and Class 1, Zone 0
b) Class 1, Division 1; Class 1, Division 2; Class 1, Zone 1 and Class 1, Zone 2
c) Class 1, Division 2; Class 1, Zone 1 and Class 1, Zone 2
d) Class 1, Division 2; Class 1, Zone 2 and Non-hazardous
e) none of the above

Click Here to Reveal the Answer

Nonincendive is allowed in Class 1, Division 2; Class 1, Zone 2, and Non-hazardous rated areas. Use in higher hazard areas, such as Division 1, Zone 1, or Zone 0 areas, is not allowed.

The correct answer is D.

Reference: NFPA 70, National Electrical Code 2005 or 2008.

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