What is the best way to increase the turning force on a hard-to-turn bolt?
A) Slip a length of pipe over the socket handle to increase the leverage.
B) Strike the socket handle with a hammer.
C) Use a breaker bar.
D) Use a shorter-length socket handle to get a better grip.
C
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What type of control element can only be on or off?
A) Discrete B) Modulated C) Valve control D) Continuous
How would you design to avoid duct noise from above the ceiling? Select all that apply.
A) Increase aspect ratio to achieve larger duct absorption surface. B) Avoid sharp, abrupt edges at takeoffs. C) Install sound traps at the beginning of the supply main. D) Restrict velocities to 3000 fpm maximum.
The roots of orchids are adventitious roots
Indicate whether the statement is true or false
Patches of oil that have dripped from passing vehicles are slippery just after it starts to rain in cold weather.
Answer the following statement true (T) or false (F)