Describe thermoplastic adhesives.
What will be an ideal response?
Thermoplastic polymer adhesives generally have less resistance to heat and moisture and less long-term resistance to loads than do thermosetting polymers. They are moisture-resistant but not used where they will be exposed to moist conditions.
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Answer the following statement(s) true (T) or false (F)
1. A transistor amplifier configuration—CE, CC, or CB—is determined by the relationship between the AC input signal and the AC output signal. 2. An amplifier can often reach an efficiency of 100%. 3. At saturation, the transistor is totally off and at its lower limit of operation. 4. The class AB amplifier is really just a variation of the class A amplifier. 5. Because the class C amplifier is seldom on, its efficiency is excellent, nearly approaching 100%.
Insects that damage plants all have mouthparts that pierce
Indicate whether the statement is true or false
What is an advantage of electronic service information?
A) Information may be printed out for future reference B) Internet access to keep information up to date C) Both A and B D) Neither A nor B
Which of the following is a condition of an air conditioning system that is undercharged?
A. increased possibility of floodback to the compressor B. higher operating pressures C. low operating pressures D. reduced evaporator superheat