How can a multistage thermostat be applied to control an electric furnace?
A) the blower will come on in first stage and the strips in second stage
B) the strips will receive 120 volts in first stage and 240 volts in second stage
C) 50% of the strips will be energized in first stage and the rest in second stage
D) the strips will come on in first stage and the fan in second stage
C
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Define the following terms or concepts:
a. Law of electroneutrality b. Normality c. Equivalent d. Total Dissolved Solids (TDS) e. Total Suspended Solids (TSS) f. Volatile Suspended Solids (VSS) g. Fixed Solids h. Total Hardness i. Carbonate Hardness j. Noncarbonated Hardness k. Chemical Reactivity l. Chemical Activity m. Standard State Activity n. Activity Coefficient o. Solubility p. Precipitate q. Reduction–Oxidation Process r. Ionic Reaction s. Dissolution Salts t. Sorbent u. Sorbate
When considering coolant cavitation erosion, what is a vapor bubble composed of?
A. air B. vaporized coolant C. blow-by gas D. vaporized engine lube
Where an orderly shutdown is required to minimize the personnel/equipment hazard(s), a system of coordination based on the following two conditions is permitted: (1) coordinated short-circuit protection and (2) ____.
A. overload indication based on monitoring systems or devices B. coordinated service (a single main feeder line) C. a single switching source D. integrated circuitry
Technician A says automatic transmissions can shift gears without requiring an interruption of powerflow. Technician B says automatic transmissions use synchronizers instead of planetary gearsets. Which technician is correct?
A) Technician A B) Technician B C) Both technicians A and B D) Neither technician A nor B