Technician A says that pneumatic grease guns are more expensive than battery operated grease guns. Technician B says that battery operated grease guns require a supply of compressed air. Which technician is correct?
A) Technician A only B) Technician B only
C) Both technicians A and B D) Neither technician A nor B
D
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Define remote sensing.
What will be an ideal response?
Fire alarm system digital communicators can send and receive data over telephone lines by using a connecting device identified as _____.
a. RJ11/4 b. RJ31-X c. RJ34-B d. RJ11/8
Five specimens of untreated wastewater produced at a gas field had an average benzene concentration of 6.83 mg/L with a standard deviation of 1.72 mg/L. Seven specimens of treated wastewater had an average benzene concentration of 3.32 mg/L with a standard deviation of 1.17 mg/L. Find a 95% confidence interval for the reduction in benzene concentration after treatment.
What will be an ideal response?
Technician A says that charging system testing requires that the battery be at least 75% charged. Technician B says that a digital multimeter can not be used to test charging system voltage. Who is right?
A) A only B) B only C) Both A and B D) Neither A nor B