Bare skin exposed to liquid refrigerant will:
A) Become immediately stiff and hard like an ice cube.
B) Feel like a burn and blister up.
C) Withstand 30 seconds of immersion.
D) Tingle, but not be seriously harmed.
B
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Answer the following statements true (T) or false (F)
1 Burner flame impingement or poor flame distribution can cause overheating and failure of the tubes. 2 Poor control of excess air and poor draft control can lead to lost production time. 3 If atomization is not uniform, the burner tips on the atomization gun or burner require replacement. 4 When putting a vessel into service, the pressure should be increased quickly to operating pressure. 5 Accurate vessel wall thickness measurements may be made while the vessel is empty and clean.
Technician A says that all O- rings are OK to use with R 134a systems. Technician B says that the color of the O-ring indicates the material it is made from. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
Income from recycling the paper and cardboard generated in an office building has averaged $3000 per month for the past 3 years. What is the income stream’s equivalent worth now at an interest rate of 8% per year, compounded quarterly?
What will be an ideal response?
Which part in the steering column allows for changes in the angle between the upper and lower shafts?
A) Flexible coupling B) Collapsible section C) Universal joint D) Column cover