What is the most accurate method of checking the degree of antifreeze protection of an ethylene glycol (EG) coolant mixture?
A. Litmus paper
B. Refractometer
C. Thermometer
D. Hydrometer
Answer: B
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When the DCM voltage is present on digital input #2, the VFD will operate the motor in the _______________ direction of rotation.
Fill in the blank(s) with the appropriate word(s).
The purpose of a(n) ____________________ is to detect a potentially fire-producing arcing condition anywhere in the circuit wiring of the dwelling or in equipment attached to the circuit.
Fill in the blank(s) with the appropriate word(s).
Digital Signal Processing is the processing of analog signals by conversion to digital form
Indicate whether the statement is true or false
Technician A says that diesel engines do not create a vacuum in their intake manifold. Technician B says most diesel engines use hydraulically assisted power brake boosters, and the pressure for the assist is developed in the power steering pump on some diesel engines. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B