Porosity is the result of _____ in the weld
a. lack of penetration
b. root penetration
c. slag inclusions
d. gas pockets
d
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A rectangle is a four-sided figure with four _____.
a. bases b. unequal sides c. right angles d. different angles
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Chromosomes may be classified as which of the following?
a. autosomes b. sex chromosomes c. autosomes or sex chromosomes d. neither autosomes nor sex chromosomes
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Which of the following is not an erosion-control technique for Class II land?
A) crop residue management B) minimum tillage C) crop rotations D) irrigation
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What does H70-T40 mean when describing a hydrogen filling station?
A) The estimated time needed to fill the tank B) The size of the storage tank C) The type of hydrogen D) The temperature and pressure rating
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