QUESTION 32
How can commissioning reduce the life-cycle cost to owners and operators?

QUESTION 33
A facility has the thermal cooling load profile shown in the table below. The utility rate tariff has an on-peak time-of-use billing period that begins at 10:00 a.m. and ends at 7:00p.m. Calculate the storage capacity required for a load-shifting operating strategy, to make sure that no thermal cooling Is generated by the chiller during the on-peak utility rate period.

[Question from the previous image, which was about storage capacity for load shifting, but the table was missing]

QUESTION 34
In a warehouse, lights are mounted 4 meters above the floor. This provides an average light level of 150 lux.
To increase the light level without installing more lights or higher Wattage lights, you lower the light fixtures with pendants so that the lights are located 3.25 meters above the floor. Calculate the new average light level on the floor.

QUESTION 35
What instrument determines flow rate by measuring pressure differential?

QUESTION 36
A 25-kW motor, at full load, drives a centrifugal fan that produces 160,000 liters per second (l/s) of ventilation air. If the fan speed is reduced to a flow rate of 150,000 l/s, what is the new load on the motor?

QUESTION 37
If outside air has a temperature of 30°C dry bulb and 20°C wet bulb, what is the dew point temperature?

QUESTION 38
A new lighting system costs $60,000. The new lighting system has a 15-year life and the minimum required rate of return (MARR) is 15%. How much must the new lighting system save to be life-cycle cost effective?

QUESTION 39
Which of the following statements regarding refrigerants is NOT correct?
5ELECT THE CORRECT ANSWER

QUESTION 40
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?

QUESTION 41
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?

QUESTION 42
Which pump system listed below is most likely the best application for converting to variable-speed drive for energy savings?
SELECT THE CORRECT ANSWER

QUESTION 43
The International Performance Measurement and Verification Protocol (IPMVP) has how many categories (method options) to determine the performance of an energy- or water-consuming system?

QUESTION 44
In a warehouse, lights are mounted 4 meters above the floor. This provides an average light level of 150 lux.
To increase the light level without installing more lights or higher Wattage lights, you lower the light fixtures with pendants so that the lights are located 3.25 meters above the floor. Calculate the new average light level on the floor.

QUESTION 45
Which of the following statements best describe Demand Control Ventilation (DVC) in Building Automation Systems?

QUESTION 46
A high-pressure steam system passes 180°C condensate (saturated liquid) through a steam trap to an atmospherically vented condensate receiver tank. If the steam trap is working properly, how much of the condensate mass can be lost out the vent of the receiver tank in the form of flash steam?