Which is the most likely construction for medium velocity ductwork?
A) Rectangular with internal insulation.
B) Flat oval with internal insulation.
C) Flat oval with external insulation.
D) Rectangular with external insulation.
C) Flat oval with external insulation.
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Jefferson's argument against the constitutionality of a Bank of the United States were based on the strict construction principles, especially embodied in the
A. Articles of Confederation. B. "necessary and proper" clause of the Constitution. C. Virginia and Kentucky Resolutions. D. Tenth Amendment in the Bill of Rights. E. restrictions on Congress's power in Article I, section 10 of the Constitution.
PROBLEM 3.79
A 1.5-in.-diameter steel shaft of length 4 ft will be used to transmit 60 hp between a motor and a pump. Knowing that G = 11.2 ? 106 psi, determine the lowest speed of rotation at which the stress does not exceed 8500 psi and the angle of twist does not exceed 2?.
In most commercial air handlers:
A) The air passes through the unit twice: once for the blower and another time for the coil. B) The blower forces the air across the coil. C) The blower draws the air across the coil. D) The blower and coil are located in separate component parts of the system.
What is the resolution, in percent, of a 12-bit DAC?
A) 0.000488 B) 0.024 C) 0.083 D) 8.33