Which of the following will be effective in reducing low frequency noise from a mechanical room?
A) Sound batts in the stud space.
B) Mounting the drywall on resilient channels.
C) Acoustical liner on the walls.
B) Mounting the drywall on resilient channels.
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Technician A says canister purging occurs only when conditions are right. Technician B says modern purge valves are computer controlled. Who is correct?
A. Technician A B. Technician B C. Both A and B D. Neither A nor B
All of the following statements are true EXCEPT:
A. gas shocks were invented to control aeration, cavitation, and foaming of the hydraulic fluid. B. pressurizing the oil column in the shock absorber keeps the bubbles in the solution. C. some gas shocks have a pressurized gas-filled cell. D. twin-tube gas shocks are pressurized with nitrogen gas at 30-90 psi, depending on the manufacturer and the damping force desired.
When low voltage thermostat wire is run through the roof to the conditioned space the thermostat should then be located as close to the ________ as possible
A) electrical service panel B) fresh air intake C) return air D) mechanical room
Technician A says that the current trend is to use remote power steering fluid reservoirs. Technician B says that using a remote reservoir allows for a more compact power steering pump assembly. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician