What flow type occurs when the fluid flow velocities are low, resulting in regular flow patterns?
A. Cross flow
B. Hybrid flow
C. Parallel flow
D. Laminar flow
A. Incorrect. Cross flow occurs when two streams move perpendicular to each other.
B. Incorrect. Hybrid flow occurs when the heat exchanger has multiple passes and baffles.
C. Incorrect. Parallel flow occurs when the streams on both the shell and tube sides move in the same direction.
D. Correct. Laminar flow, or streamline flow, occurs when the fluid flow velocities are low, resulting in regular flow patterns.
You might also like to view...
The best time to apply fertilizer is _____
A) prior to the active growing season B) when the grass is dormant C) in the summer for cool season grasses D) in the winter
A half-wave, single-phase ac-to-dc converter is loaded by an impedance of l0 mH inductance in series with l0 ? resistance. The ac voltage is 110 v (rms). For ? equal to 30o and 90o , calculate the following:
a. Conduction period b. Average current of the load c. Average voltage of the load d. Power
A(n) ____________________ (RTD, thermistor) has a larger range than a(n) ____________________ (RTD, thermistor) at which it can measure temperature.
Fill in the blank(s) with the appropriate word(s).
Diodes are used to suppress the voltage spikes produced by coils that operate on ____________________.
Fill in the blank(s) with the appropriate word(s).