In a wastewater cooled system, the difference between the condensing temperature of the refrigerant and the leaving water temperature is approximately ____.
A. 10°F
B. 20°F
C. 30°F
D. 40°F
Answer: A
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In the Honda belt-and-pulley CVT, how does the belt propel the vehicle?
A) Pushes B) Pulls
Gear pitch is determined by:
a. the amount of torque needed to be transferred b. the speed the gear will rotate c. the number of teeth on a gear and the material they're made of d. the number of teeth on a gear and its diameter
Carry the answer to two decimal places. What is the total weight of a container of 7 gallons of liquid insulating material if one gallon weighs 9.36 pounds and the container alone weighs 6.87 pounds?
Fill in the blank(s) with the appropriate word(s).
A person standing in a room loses heat to the air in the room by convection and to the surrounding surfaces by radiation. Both the air in the room and the surrounding surfaces are at 20ºC. The exposed surfaces of the person is 1.5m² and has an average temperature of 32ºC, and an emissivity of 0.90. If the rates of heat transfer from the person by convection and by radiation are equal, the combined heat transfer coefficient is
(a) 0.008 W/m2•ºC (b) 3.0 W/m2•ºC (c) 5.5 W/m2•ºC (d) 8.3 W/m2•ºC (e) 10.9 W/m2•ºC