Which of the following can cause compressor damage due to lack of lubrication?
A) Low oil charge
B) Low refrigerant charge
C) Mixing different oils
D) All of the above
D) All of the above
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The crew leader's primary job is to _____.
a. make sure the job is done correctly and on time b. prepare performance evaluations for crew members c. perform material takeoffs d. make sure the crew is well-trained
Which of the following has to be true based on this process description?
A fresh feed stream contains 50.0mol/s each of A and B and no other compounds. It is mixed with a recycle stream and enters a reactor. The reaction A + B ? C is carried out in the reactor. The reaction reaches equilibrium and 50% of the entering A is converted into C. The reactor effluent is sent to a distillation column. The bottom product from the column is 98.0 mol% pure C and is the product from the process. The top product contains 1.0 mol% C and the entire top product is recycled. The entire process operates at steady state. A. The recycle stream is 49.5 mol% A and 49.5 mol% B. B. The equilibrium constant in the reaction is 1. C. The molar flow rate of the product stream is 50.0 mol/s. D. All of the above have to be true. E. None of the above has to be true, though they could be true.
Which of the following is a type of low ambient temperature head pressure control?
A. CPR B. EPR C. fan cycling D. off-cycle defrost
Interpret this note placed next to a window symbol: 4/0 X 6/0 AL. S.H.
What will be an ideal response?