Why are air flow switches often used in air conditioning and refrigeration circuits?
What will be an ideal response?
ANSWER: Air flow switches are often used in air conditioning and refrigeration circuits to give a positive indication that the evaporator or condenser fan is operating before the compressor is permitted to start.
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Seeds are generally classified as being dicotyledonous or monocotyledonous
Indicate whether the statement is true or false
Which statement is true about fuse ratings?
A) The fuse rating should be less than the maximum current for the circuit B) The fuse rating should be higher than the normal current for the circuit C) 80% of the fuse rating should equal the current in the circuit D) Both B and C
The micron gauge is used to measure the level of vacuum reached during the evacuation process.
Answer the following statement true (T) or false (F)
____ are special welded connectors used where roof and floor tee members must be joined together at the flanges so that several single members become fused into one solid roof or floor.
A. Stem weld plates B. Flange weld plates C. Truss weld plates D. Tee weld plates