Industrial Maintenance Final Exam Review Questions with Complete Solutions 100% Verified Rated A+ 2024 ____ current is current that reverses its direction of flow at regular intervals. - Correct Answer alternating ____ is the amount of electrical pressure that causes electrons to move in a circuit. - Correct Answer voltage Current is measured in ____. - Correct Answer amperes A(n) ____ is a device that automatically opens a circuit to prevent damage from a high-current condition. - Correct Answer OCPD A(n) ____ is the conducting part of a switch that operates with another conducting part to complete (close) or break (open) a circuit. - Correct Answer contact A(n) ____ is an electrical switch that is actuated by a separate circuit. - Correct Answer relay A(n) ____ circuit is a circuit having an incomplete path, which prevents current flow. - Correct Answer open ____ is the opposition to the flow of electrons. - Correct Answer resistance A(n) ____ is a material that has little resistance and permits electrons to move through it easily. - Correct Answer conductor ____ is the discharge of an electric current across a gap. - Correct Answer arcing A(n) ____ circuit is an undesirable, low-resistance path for current to leave the normal current-carrying path through a load. - Correct Answer short 1 / 2
A(n) ____ circuit is a circuit that has two or more components connected such that there is only one path for current flow. - Correct Answer series ____ is a material that has a high resistance. - Correct Answer insulator A(n) ____ circuit is a circuit having a complete path for current flow. - Correct Answer closed A(n) ____ circuit is a conducting connection between electrical equipment and the earth. - Correct Answer ground A(n) ____ is a heat exchanger through which heat is transferred to the low-pressure refrigerant liquid. - Correct Answer evaporator A(n) ____ is a temperature sensor inside a temperature-controlled space that sends signals to a control system in order to maintain a set temperature. - Correct Answer thermostat ____ condensers are the most common condensers used in refrigeration systems. - Correct Answer air- cooled ____ heat is heat energy that causes a change of state but no temperature change. - Correct Answer latent A(n) ____ is a heat exchanger that removes heat from high-pressure refrigerant vapor. - Correct Answer condenser Refrigerant ____ is the process of removing refrigerant from a system and capturing it in a recovery cylinder, with no cleaning of refrigerant. - Correct Answer recovery A low-pressure boiler is a boiler that has an MAWP of up to ____ psi. - Correct Answer 15 A boiler horsepower is the power available from the evaporation of ____lb of water per hour at a feedwater temperature of ____F. - Correct Answer 34.5; 212
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