Explain what metamerism is.
What will be an ideal response?
Metamerism, or the condition of paint color looking different in different light sources, can happen when paint is matched using light that is not color corrected. Most spray booths have light that is color corrected, which means that the booths have the same wavelengths as sun or white light. Light which is color corrected is measured by a color rendering index or CRI, and must be at least 85 to 92% CRI to properly match colors. If paint colors are compared under fluorescent light, which has more violet and reds in it, the colors will not match when viewed outside. This effect occurs because incandescent light contains more yellow, orange, and reds than sunlight or CRI corrected light.
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The SAE term for the vehicle computer is ________
A) ECA B) Controller C) ECM D) PCM
Which statement is false?
A) A decrease in manifold vacuum means an increase in manifold pressure B) Absolute pressure is equal to barometric pressure plus intake manifold vacuum C) Barometric pressure minus the MAP sensor reading equals intake manifold vacuum D) The MAP sensor compares manifold vacuum to a perfect vacuum
Polarity affects:
A) Weld penetration B) Arc starting C) Arc stability D) All of the above
LoRa is a wireless technology that enables low-power wide-area networks (LPWANs) for direct person-to-person communications.
Answer the following statement true (T) or false (F)