Infrared radiation is produced naturally by all materials at temperatures above _____
a. freezing
b. absolute zero
c. 10°C
d. -50°F
b
Trades & Technology
You might also like to view...
Name two examples of special equipment that use motor reversal and dynamic braking operations.
What will be an ideal response?
Trades & Technology
PA cutting equipment consists of a transformer power supply, plasma torch and cable, work clamp and cable, and a(n) ____.
A. oxyfuel gas cylinder B. pressure regulator C. acetylene supply D. air supply
Trades & Technology
Find the current flow (amperes) in a headlight circuit with 0.9 ohms resistance. The battery voltage is measured at 11.8 volts. Round to the nearest tenth.
A. 12.7 B. 12.8 C. 13.1 D. 13.5
Trades & Technology
A hazard/risk category 4 task requires the use of FR clothing with a minimum arc rating of _________________.
A. 4 B. 8 C. 25 D. 40
Trades & Technology