The first step in loading or unloading cargo safely is:
A. secure the vehicle to be loaded or unloaded to the loading dock
B. install and check the dock board
C. set the brakes on the vehicle to be loaded or unloaded
D. chock the wheels
Answer: C
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A) What is the actual work produced in the turbine, per kilogram of entering steam? B) How much heat is removed in the condenser, per kilogram of liquid produced? C) How much work is added in the pump, per kilogram of liquid? D) How much heat is added in the boiler, per kilogram of steam produced? E) How much heat is added in the superheater, per kilogram of steam? F) What is the overall efficiency of the heat engine?
A steady-state heat engine operates on the following cycle: ? A boiler is used to produce saturated steam atP=40 bar. ? That steam enters a superheater which heats it to 450 °C without changing the pressure. ? The superheated steam enters a turbine, which has an efficiency of 80%, where it expands to P=2 bar. ? The turbine effluent enters a condenser and is converted to saturated liquid at P=2 bar. ? The liquid enters a pump and is compressed to P=40 bar. ? The compressed liquid is fed to the boiler.
The voltage across a 5-mF capacitor is shown in Fig. 6.47. Determine the current through the capacitor.
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Check rotor thickness variation by measuring with a micrometer calibrated in:
A. thousandths of an inch. B. ten-thousandths of an inch. C. hundreds of an inch D. centimeters.
The sequence of establishing an address, selecting a memory chip and outputting valid data is known as the
A) refresh cycle. B) write cycle. C) read cycle. D) none of the above