Newest 2025/2026 Complete 100 Questions And 100%
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Elevator lobby smoke detectors shall be mounted within a
maximum of which distance from the center-line of the
door? -ANSWER-21 feet
EMT shall be securely fastened in place at least every -
ANSWER-10 feet
Group A -ANSWER-Acetylene, class 1 group
,Group B -ANSWER-Flammable gas and vapor MESG
value less than or equal to .45 mm or MIC ratio of 0.40
Group C -ANSWER-Flammable gas or vapor with MESG
of .45 -.75 mm or MIC ratio .40-.80
Group D -ANSWER-Gas or vapors with MESG above .75
mm or MIC ratio above .80
Group F -ANSWER-Atmospheres containing can bustable
carbonaceous dust that have more than 8% total
entrapped volatiles, I.e. charcoal
, Group G -ANSWER-Atmospheres containing come
bustable does not included in Group E or F including flour,
green, wood, plastic and chemicals.
How is a class B circuit different from a class A circuit? -
ANSWER-Class B does Not have a redundant path;
Operational capability stops at a single open.
How long shall a secondary power supply's capacitance
last when primary power is off? -ANSWER-24 hours non-
alarm and 5 minutes of evacuation at the end.
How often shall alarm notification appliances be tested? -
ANSWER-Every 12 months