What does black exhaust smoke indicate?
A) Burning oil B) Excessive fuel
C) Insufficient fuel D) Coolant in combustion chamber
B
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When a weld symbol is placed on the reference line on the lower side of the line, the weld must be made on the ____ side of the joint.
A. top B. right C. left D. arrow
In adults, the spinal cord usually extends to which level?
A) tenth thoracic vertebra B) first sacral vertebra C) seventh cervical vertebra D) fourth or fifth lumbar vertebra E) first or second lumbar vertebra
Besides being disease carriers, aphids excrete ____, a substance concentrated with plant sugars that
leaves a sticky residue on anything underneath the aphid.
a. bioprotein c. sugardew b. honeydew d. sap
When replacing the oil pump on a rotary compressor, position the coupling half on the pump shaft so the axial spacing between the coupling halves is ________ inch, or as specified by the manufacturer
A) 3/4 B) 3/16 C) 3/8 D) 3/32