Multiple Choice
Areas in a garage adjacent to classified locations in which flammable vapor release is unlikely (such as a storeroom) shall be unclassified where ____.
A) designed with negative air flow
B) mechanically ventilated at a rate of four (or more) air changes per hour
C) designed with hermetical sealing around all doors
D) no electrical wiring passes within 10 feet of the pit area
Correct Answer:
Verified
Correct Answer:
Verified
Q2: Class III locations are hazardous because of
Q3: Askarel-containing transformers rated in excess of 25
Q4: Type PVC conduit, Type RTRC conduit, and
Q5: Unless otherwise specified in 500.8(C)(6), equipment markings
Q6: Hazardous (classified) locations are divided into certain
Q7: Sealing compound shall _.<br>A) have a melting
Q8: When mixed with air, a flammable/combustible gas
Q9: Equipment protection techniques may include explosionproof, dusttight,
Q10: _ locations contain ignitable or combustible elements
Q11: All cut ends of intermediate metal conduit