?What is used in some air-to-water heat pump combisystems to determine whether the system is enabled for heating or cooling, or remains off?
A. ?thermal storage buffer switch
B. ?mode selection switch
C. ?auxiliary boiler switch
D. ?diurnal switch
Answer: B
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A ______ is a heavy continuous line that shows visible outlines or edges of what a person sees when looking at the structure.
A. main object line B. dimension line C. stair indicator D. centerline
Find the weight of the cast-iron angle iron shown in the accompanying figure. Cast iron weighs 0.284 pounds per cubic inch. All dimensions are in inches. Round the answer to the nearest tenth pound.
What will be an ideal response?
A __________________ trait variety is a crop with .more than one transgenic trait
Fill in the blank(s) with correct word
Quite often, technicians rely on their gauge manifolds to determine if a sufficient vacuum has been achieved. This __________ acceptable field practice.
A. is B. is not