A lamp that produces light as a result of current passing through a resistive filament is using ____.
A. high-intensity discharge lighting
B. resistive lighting
C. incandescent lighting
D. fluorescent lighting
Answer: C
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Two kilograms of water at 6 MPa is heated from saturated vapor to 400ºC. The enthalpy change is nearest:
A) 1750 kJ B) 2360 kJ C) 3080 kJ D) 3640 kJ
The most effective hearing protection is provided by _____.
a. earmuff-type hearing protectors b. rolled-up cotton balls c. reusable earplugs d. disposable earplugs
Why is it recommended that an acetylene cylinder valve never be opened more than one-half turn?
A) To allow rapid shutoff in the case of an accident B) To minimize the strain of the high cylinder pressures on the valve threads C) To regulate the pressure to the torch handle D) To prevent the valve from getting stuck in the fully opened position
On a ZigBee network, a reduced-function device can only connect to one full-function device on the network.
Answer the following statement true (T) or false (F)