All these methods can calculate airflow EXCEPT ________
A) Mass airflow
B) Load calculation
C) Speed density
D) All of these are methods of calculating the air-fuel mixture.
B
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What will be an ideal response?
3.0 kg of air is initially at 200 kPa and 10oC. The air is compressed in a polytropic process, following the relationship PVn = constant. The air is compressed until the volume is 0.40 m3. Determine the work done and the final temperature of the air for values of n of 1.0, 1.1, 1.2, 1.3, and 1.4, and plot the work as a function of n.
Given: m = 3.0 kg; P1 = 200 kPa; T1 = 10oC = 283 K; V2 = 0.40 m3 What will be an ideal response?
To aid in erection of the forms by crane, carpenters install _____.
a. lifting eyes b. turnbuckles c. eyebolts d. hoisting hooks
A major difference between three-phase motors and single-phase motors is that:
A) Three-phase motors do not need any type of starting components. B) Three-phase motors use three times as much current. C) Three-phase motors have a laminated iron rotor. D) Three-phase motors use three sets of starting components.