Emperor scorpions _____
a. are native to South America
b. like arid, desert-like habitats
c. can reach eight inches in length
d. live in the trees of dense forests
C
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What constant did Charles' Law maintain?
A) Pressure B) Temperature C) Mass D) Buoyancy
Technician A says that a MAF sensor is a high-authority sensor and is responsible for determining the fuel needs of the engine based on the measured amount of air entering the engine. Technician B says that a cold wire MAF sensor uses the electronics in the sensor itself to heat a wire 20°C below the temperature of the air entering the engine. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
It is important to the HVACR technician to understand the changes of state of matter because:
A) NATE certification exams require a good understanding of the Periodic Table of Elements. B) The refrigerant recovery process requires a technician to know which state the matter is in to ensure that only like refrigerants are put into a recovery container. C) Technicians are required to mix refrigerants to attain proper pressures and temperatures when charging refrigeration systems. D) The cooling and heating process requires a change of state of matter in some form.
A series circuit has a 12-volt power source and two resistors of 1 ohm and 2 ohms respectively. How many amps will flow when the circuit is closed?
A. 4 amps B. 3 amps C. 6 amps D. 15 amps