How does an ultrasonic-type leak detector work?
A) It uses Bluetooth wireless technology.
B) It uses sonar to look for imperfections in the tubing and fittings.
C) It sees the disturbance in the air surrounding the leak.
D) It hears the high-pitched sound of escaping gas.
D
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Damage caused by small rodents when they chew away the bark around small stems is called what?
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____________________ sealants can cure without the presence of oxygen.
Fill in the blank(s) with the appropriate word(s).
The throttle plate motor is driven by a bidirectional PWM signal using an H-bridge circuit
Indicate whether the statement is true or false