What is the purpose of the limit switch?
A) It improves efficiency by limiting furnace run time.
B) It limits the indoor blower fan speed to supply a regulated supply of warm air.
C) It prevents overheating by interrupting the circuit to the gas valve.
D) It improves efficiency by limiting the supply air temperature.
C
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Switch array GUI. The following script illustrates how to form a switch matrix GUI. Additional commands can replace the “disp()” instructions.
x = [0 1 1 0 0]; % define sqaure y = [0 0 1 1 0]; plot(x,y) axis([0 3 0 3]) axis off axis square hold on plot(x+2,y) % plot 4 squares plot(x,y+2) plot(x+2,y+2) hold off text(.5,2.5,'A') % label squares with letters text(2.5,2.5,'B') text(.5,.5,'C') text(2.5,.5,'D')
What is the lowest acceptable overvoltage category rating for an ammeter that will be used to test outdoor conductors?
a. CAT I b. CAT II c. CAT III d. CAT IV
The louse (larval stage) spends only half its life cycle in the host.
Answer the following statement true (T) or false (F)
In PM, plant assets and equipment are subject to _____
a. increased use b. decreased use c. long-term wear d. periodic inspection and maintenance