If the main heating coils of an electric furnace are not heating up, you should suspect that ________
A) the system has an open fuse, the contacts of the first sequencer are not closed, or the main heating element is open
B) the fan switch contacts are not closed or the fan switch is faulty
C) the coil of the fan relay is open or the fan relay contacts are faulty
A
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In high-quality masonry work, every head joint must be kept exactly plumb with those on alternating courses below.
Answer the following statement true (T) or false (F)
Which of the following are bloodborne pathogens?
A) Hepatitis B (HBV) B) Human immunodeficiency virus (HIV) C) Neither A nor B D) Both A and B
Read the setting on this customary vernier micrometer scale graduated in 0.0001".
Fill in the blank(s) with the appropriate word(s).
Most alloy steel chain slings can be used in temperatures up to _____
A) 200°F (93°C) B) 300°F (149°C) C) 400°F (204°C) D) 500°F (260°C)