An astable 555 timer is designed using the following external components: RA = 8.5 k?, RB = 470 ?, C = 2.2 ?F. Calculate time LOW (tLO)
A) 0.325 msec B) 0.75 ?sec C) 716 ?sec D) 455 ?sec
C
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An adiabatic steam turbine operates between state 1 at 6 MPa and 600°C, and state 2 at 10 kPa and x2 = 1.0. The turbine efficiency is nearest:
A) 92% B) 87% C) 81% D) 77%
To be a member of the Eurozone, what is the limit of a member state’s budget deficit as a percentage of gross domestic product, or GDP?
a. 1 percent b. 3 percent c. 6 percent d. 9 percent
Technician A says that the electric AIR pump requires periodic maintenance. Technician B says that if the AIR pump is good, the oxygen sensors should read 850 mV or more when the AIR pump is energized. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
How much drop is there in 40 feet at 3% grade?
Fill in the blank(s) with the appropriate word(s).