Which type of thermometer cannot be used to take air temperature readings?
A) Digital B) Dial C) Infrared D) Glass-stem
C
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What is the primary use of nutrients in a ration?
What will be an ideal response?
Why are the last steps in the maintenance program as important as determining requirements?
What will be an ideal response?
Why does a heat pump need two metering devices?
A) Two metering devices provide increased refrigerant flow at low ambient temperatures in heat. B) One metering device is used for first-stage heat and another for auxiliary heat. C) One metering device is used for the refrigerant circuit and another for the heat strips. D) One metering device is used for the cooling cycle and one for the heating cycle.
A stress-strain experiment was done on a plastic and the following data was noted on the plot of the experiment: ultimate tensile strength = 9000 psi, yield strength = 5000 psi, proportional limit = 4000 psi, strain-to-failure = 0.025, strain at yield = 0.020, stain at proportional limit = 0.015 . The original length of the sample was 4 inches. What was the modulus?
What will be an ideal response?