IEC Chapter Final Exam 138 Questions and Answers Latest () (Verified Answers).pdf

IEC YEAR 4 FINAL EXAM ACTUAL EXAM s s s s s s s




COMPLETE 1000+ QUESTIONS ANDCOR s s s s




RECTDETAILEDANSWERS (VERIFIED A s s s s




NSWERS) |ALREADY GRADED A+ s s s




Unless enclosed in an approved storage cabinet, not more than
s s s s s s s s s


gal s


lons of flammable or combustible liquids are permitted to be stored insid
s s s s s s s s s s s


e a room.
s s




Select one: s s


a.5
b.120
c.25
s s


d.60
e.3 - ANS-c. 25 s s s




Outdoor storage tanks for flammable or combustible liquids shall be ke
s s s s s s s s s s


pt at least
s feet from a building.
s s s s




Select one: s


a.20 s


b.50
c.60 d s


.300
e.120 - ANS-a. 20 s s s




Open flames, smoking, or other sources of ignition must be kept at le
s s s s s s s s s s s s


ast feet away from flammable or combustible liquids.
s s s s s s




Select one: s

,a.50 b s


.120 c s


.20 d.s


60
e.300 - ANS-a. 50 s s s




Not more than
s s


gallons of combustible liquid shall be stored in any o s s s s s s s s s


ne approved storage cabinet.
s s s




Select one: s s


a.5
b.60 s


c.120
d.3
e.25 - ANS-c. 120
s s s




By definition, a
s s liquid has a flash point less than 140 degrees F.
s s s s s s s s s




Select one: a.fla s s


mmable
b.combustible - ANS-a. flammable s s s




By definition, a
s s


liquid has a flash point greater than or equal to 140 de
s s s s s s s s s s s


grees F. s




Select one: a.co s s


mbustible
b.flammable - ANS-a. combustible s s s




Two switches in series can also be described as
s s s s s s s s


in PLR
s s


programming.

Select one: s

,a. S1 AND S2 s s


b. S1 OR S2 s s


c. S1 WITH S2 s s


d. S1 WITHOUT S2 - ANS-a. S1 AND S2
s s s s s s s




Two switches in parallel can also be described as
s s s s s s s s


in PLR
s s


programming.

Select one: s


a. S1 AND S2 s s


b. S1 OR S2 s s


c. S1 WITH S2 s s


d. S1 WITHOUT S2 - ANS-b. S1 OR S2
s s s s s s s




The force command is used primarily
s s s s s .

Select one: s


a.as a troubleshooting tool
s s s s


b.to disable a device
s s s


c.in normal operation - ANS-a. as a troubleshooting tool
s s s s s s s s




The disable command is used primarily
s s s s s .

Select one: s


a.to troubleshoot a system
s s s s


b.in normal operation
s s


c.to force a function - ANS-a. to troubleshoot a system
s s s s s s s s s




In PLR programming, "FBD" designates:
s s s s




Select one: s


a.Follow-
up Being Done b.First Block
s s s s s


Done

, c.Function Block Diagram s s


d.Free By Design - ANS-c. Function Block Diagram
s s s s s s s




Which of the following is an example of discrete manufacturing?
s s s s s s s s s




Select one: s


a.a furniture plant
s s


b.a gravel pit c.a
s s s


n oil refinery
s s


d.a chemical blending facility - ANS-a. a furniture plant
s s s s s s s s




The term for incident energy that results in sufficient heat transfer throu
s s s s s s s s s s s


gh PPE to cause the onset of a second-degree burn in 6 cycles or
s s s s s s s s s s s s s


0.1 seconds is
s . s




Select one: s


a.arc rating s


b.arc flash boundary s s


c.arc thermal performance value
s s s


d.arc flash - ANS-c. arc thermal performance value
s s s s s s s




NFPA 70E® uses the measurement of
s s s s s


in determining the arc flash
s s s s s


boundary.

Select one: s


a.1.0 cal/cm² s


b.1.2 cal/cm² s


c.2.5 cal/cm² s


d.3.0 cal/cm² - ANS-b. 1.2 cal/cm²
s s s s s




The
boundary is the approach limit for unqualified individuals to r s s s s s s s s s


educe the risk of contact with an exposed energized electrical conduct
s s s s s s s s s s


or or circuit part.
s s s