NATE ICE Core Test QUESTIONS AND ANSWERS

A particular cleaning solution is made by mixing a liquid cleaning concentrate with water. the instructions specify mixing 1 quart of concentrate with 14 quarts of water. a tech wishes to prep 60 quarts of mixed cleaning solution. how many quarts of cleaning concentrate will be needed. - Answer- 4 A tech is using a flexible rule that uses inches that are divided into 32 divisions, the tech is marking a length of tubing that is 11 1/8th of an inches in length, how many divisions will be used to mark off the 1/8th of an inch. (How many marks between each 1/8th inch mark) - Answer- four An electrical test instrument that is a combination voltmeter, ohmmeter, and ammeter is called. - Answer- multimeter What type of a circuit breaker is recommended for HVAC equipment - Answer- HACR Approximately how many BTUs are equivalent to 1 watt-hour - Answer- 3.413 When a single phase electrical load is drawing 4.5 amperes in a 230-volt circuit with a power factor of 0.91, it is using power at the rate of ? - Answer- 942 watts Which of the following scales on an analog ohmmeter would be used for checking the resistance of a motor winding? - Answer- R x 1 scale A continuity check is actually a specific type of ? - Answer- resistance measurement A correct statement regarding a fuse is that it is used to protect against? - Answer- over current In regard to the installation of a room thermostat which one of the following statements is correct? - Answer- the wall opening behind the thermostat must be sealed As a pressure on a liquid increases, the boiling point of the liquid? - Answer- increases When an electrical motor is working at the rate of 1492 watts, how much horsepower is it producing? - Answer- 2.00 If the length of a wire is doubled, its measured resistance will? - Answer- become twice as great According to health and safety regulations, when climbing up or down a ladder the worker must? - Answer- always face the ladder