CEM試験無料問題集（146題）「AEE Certified Energy Manager (CEM) 認定」

出題：1

A 100-kW electrical load has a power factor of 75%. What capacitance, in KVAR, will improve the power factor to 95%?

A. 25.3 kVAR

B. 15.7 kVAR

C. 55.3 kVAR

D. 33.1 kVAR

E. 45.2 kVAR

正解：A 解答を投票する

出題：2

Which pump system listed below is most likely the best application for converting to variable-speed drive for energy savings?
SELECT THE CORRECT ANSWER

A. Piston pump operating at full capacity with throttle valve fully open, transferring liquid from an underground dam to the roof of a building

B. Positive displacement rotary lobe pumps in parallel, in a constant flow rebar quenching application with a static head of 80 m and negligible friction head

C. Centrifugal pump varying its flowrate with bypass control, circulating liquid in a closed loop cooling system

D. Reciprocating pump with on-off control, transferring liquid vertically for one hour per day

正解：C 解答を投票する

出題：3

Periodic commissioning of a building automation system (BAS) might include which of the following?

A. Verify controls are still responsive to the BAS

B. Answers A and C

C. Retraining staff on the BAS functions and programming

D. All of the above

E. Removing temperature set point overrides

正解：D 解答を投票する

出題：4

Which motor parameter is the most difficult to determine accurately?
SELECT THE CORRECT ANSWER

A. Operating (rotating) speed

B. Input power

C. Output power capacity

D. Operating load factor using slip calculations

正解：D 解答を投票する

出題：5

Which type of lighting control technique operates in "manual on" and "auto-off mode, and can be used in situations where there is brief occupancy that do not need lights on?

A. Photocell control

B. Microphonics technology

C. Vacancy sensor

D. Occupancy sensor

E. PIR/Microphonics dual technology

正解：D 解答を投票する

出題：6

A 7 bar (gauge pressure) compressed air system has 5 leaks that are 3 mm in diameter and 3 leaks that are 6 mm in diameter. The compressed-air system is pressurized 8,760 hours per year. Electricity cost is $0.10
/kWh. What is the annual cost of the leaks in the compressed air system?

A. $18,150/yr

B. $25,220/yr

C. $56,500/yr

D. $30,910/yr

E. $48,480/yr

正解：D 解答を投票する

CEM試験無料問題集「AEE Certified Energy Manager (CEM) 認定」