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1-A facility Which instrument is useful for identifyinguninsulated steam lines:

a- Tachymeter

b- Psychrometer

c- Infrared Camera

d- Bourdon Gauge

2- A new lighting system is installed to reduce energy use ina building What data is NOT needed to verify savings for thisproject :

a- Measurement of the CO2 level in the building .

b-Measurement of light levels .

c- Measurement of the power on the lighting circuit .

d- Measurement of the lighting system operating hours.

3-In a given facility you measure the incoming supply 3 phasevoltage and you find the following voltages present, 236V , 231V,227V imbalance.What impact is this likely to have on the motorload in the installation?

a- Increase motor losses by approx. 7%

b- Increase motor losses by apprax. 15%

c- Reduce motor losses by approx. 7%

d - Reduce motor losses by approx. 15%

4- ACE industries presently has a 11 kW exhaust fan motor thatexhaust air from a production area. With the original ventilationflow rate, the fan motor was fully loaded. They have determined thevolume flow rate of ventilation can be reduiced by 30% and stillsatisfy ventilation regulations. If the fan efficiency remains thesame, what new minimum motor capacity is required to drive thesystem with reduced flow rate? Select the best choice from themotor capacities listed below the motor service factor is 1 ?

a- 3 kW

b- 4 kW

c- 5.5 kW

d- 7.5 KW