A ______ is used to round off the edge of concrete to prevent flaking or chipping.
A. power trowel
B. traditional wood float
C. hand size sidewalk edger
D. concrete rake
Answer: C
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Estimate the rate of heat transfer from the compressor. Assume for air that 
and that enthalpy is independent of pressure.
Fifty (50) kmol per hour of air is compressed from 
= 1.2 bar to 
= 6.0 bar in a steady-flow compressor.
Delivered mechanical power is 98.8 kW. Temperatures and velocities are:
Transaxle cases are made from ________.
A) Pressed steel B) Cast aluminum C) Cast iron D) Either A or B
Microcontroller designs must typically include additional system devices like external memory, memory controllers, and communication controllers
Indicate whether the statement is true or false
The three types of gas space heaters are:
A) Vented, unvented, and catalytic. B) Low pressure, medium pressure, and high pressure. C) Natural gas, propane, and kerosene. D) Category I, category II, and category III.