Which of the following statements about trimming insulation is true?
a. Trimming insulation reduces its effectiveness.
b. Insulation is applied to a pipe first, then to an elbow or tee.
c. A vapor retarder should be applied under the insulation where it fits against fittings.
d. Insulation should be removed in layers until you have achieved a snug fit.
d. Insulation should be removed in layers until you have achieved a snug fit.
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Which of these ATC output devices provides a feedback signal to the electronic control module (ECM)?
A) Mode air door motor B) Blend door actuator C) Air inlet door vacuum motor D) Blower motor control
Continuous cropping is the planned sequence of different crops grown over years on the same land
Indicate whether the statement is true or false
What is the cause of water hammer?
What will be an ideal response?
Hot-surface ignition units:
A) Operate for only a few minutes per day. B) Are standard ignition systems. C) Substantially increase an electric bill. D) Are powered by 220 V.