The welding accessory that uses a steel surface and piece of flint is called a _____
a. sparker
b. fuel-gas lighter
c. friction lighter
d. igniter
c
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For each part of the job, the concrete cover is determined by the _____.
a. architect b. local codes c. structural engineer d. concrete contractor
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The incubation period for chicken eggs is 32 days
Indicate whether this statement is true or false.
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2H3PO4 --ยป H2O + H4P2O7. Is this chemical equation balanced?
a. balanced b. not balanced
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For building code purposes, the exterior walls of a residential building cannot be located within ____ of the property lines unless special provisions are made.
A. 1' B. 2' C. 3' D. 5'
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