The solder most commonly used on low-pressure copper fittings is made from _____
a. 100% lead
b. 50% tin/50% silver
c. 95% tin/5% antimony
d. 45% silver/25% zinc/30% copper
c
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The first step in repointing is to remove any of the old deteriorated mortar joints using a special _____, which is still the least expensive and best method for small jobs .
A. pin grinder B. hydraulic breaker chisel C. masonry grinder D. plugging chisel
What can be done to prevent air from getting trapped in the cooling system when the coolant is replaced?
A) Pour the coolant into the radiator slowly. B) Use a coolant exchange machine that draws a vacuum on the system. C) Open the air bleeder valves while adding coolant. D) Either B or C
Thatch is caused by an accumulation of excess grass stems, stolons, rhizomes, and roots in the turf
Indicate whether the statement is true or false
Horses can be classified as work animals or as recreational animals
Indicate whether the statement is true or false