A defective EGR system will cause NOX emissions to be higher than normal.
Answer the following statement true (T) or false (F)
True
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Suppose that the laptop is placed in an insulating briefcase with a fully charged battery, but it does not go into “sleep” mode, and the battery discharges as if the laptop were in use. If no heat leaves the briefcase, the heat capacity of the briefcase itself is negligible, and the laptop has a mass of 2.3 kg and an average specific heat of 0.8 kJ? kg?1? °C?1, estimate the temperature of the laptop after the battery has fully discharged.
The battery in a laptop computer supplies 11.1 V and has a capacity of 56 W? h. In ordinary use, it is discharged after 4 hours. What is the average current drawn by the laptop, and what is the average rate of heat dissipation from it? You may assume that the temperature of the computer remains constant.
The minimum and maximum tread depths of a stairway should not differ by more than _____.
a. 3/8" b. 1/2" c. 5/8" d. 3/4"
Describe both factors that influence the durability of asphalt materials and the effect each factor has on the materials.
What will be an ideal response?
Why do heat pumps operate more efficiently than electric furnaces?
A) They use electricity to move heat rather than converting electricity directly to heat B) Heat pumps and electric furnaces actually operate at about the same efficiency C) Refrigerant has a natural affinity for heat D) Heat pumps use a more direct method of converting electrical energy to heat energy