Which is not a contactor function?
A) Contain auxiliary contacts for use in the contactor control circuit.
B) Its contacts remain open and/or closed even after power has been removed from the coil.
C) It's used in starters for motors.
D) Switch large currents from large voltage sources.
B
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Most (usually 80% or more) of soil potassium and calcium can be found in the form of ________
A) dissolved substances B) organic compounds C) structural components of minerals D) exchangeable ions
Two technicians are discussing an automatic transmission that will not go into any forward gear or reverse. Technician A says that a defective PCM or TCM could be the cause. Technician B says that a defective or worn pump could be the cause. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B
What is the buffer tank on an air-to-water heat pump system?
A) A tank in the liquid line after the condenser that balances fluctuations in system capacity B) A large insulated tank of water that is heated with electric heating elements and serves as a backup heat source C) A tank in the suction line before the compressor that prevents liquid from returning to the compressor D) A large insulated tank of water that balances fluctuations in load
Describe the method of wet-bedding blending.
What will be an ideal response?