A fuel cell produces electricity through an electrochemical reaction that combines hydrogen and oxygen to form ____.
A. carbon dioxide
B. hydrogen peroxide
C. water
D. alcohol
Answer: C
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Which class of smoke damper exhibits the lowest amount of leakage?
a. Class 1 b. Class 2 c. Class 3 d. Class 4
What type of actuators are used in electrohydraulic injectors (EHIs)?
A. solenoid only B. piezoelectric only C. both solenoid and piezoelectric D. neither solenoid or piezoelectric
Explain how a bypass humidifier works
What will be an ideal response?
Two technicians are discussing a clutch master assembly. Technician A says external leaks are due to the secondary seal. Technician B says hydraulic fluid is hygroscopic and tends to absorb moisture from the atmosphere. Who is correct?
A. Technician A B. Technician B C. Both Technicians A and B D. Neither Technician A nor B