When testing an O2S (Oxygen sensor) using a DSO (digital storage oscilloscope), how quickly should the voltage change when either propane is added to the intake stream or when a vacuum leak is created?

Water is flowing in a 6-cm-diameter pipe at 4 m/s. It flows through a nozzle and exits to the atmosphere through a 2-cm-diameter exit area. The upstream pressure is nearest:

A) 750 kPa B) 650 kPa C) 550 kPa D) 450 kPa

What are some of the surface impurities that can contaminate a weld and cause porosity??

What will be an ideal response?

Reasons for an increasing number of pets and pet owners in the United States include

A. An increased concern for personal security B. Changes in the species owned C. An increased level of disposable income D. All of the above E. A and C above

Which binary value equals 24?

A) 00010100 B) 00010001 C) 00001000 D) 00010000