Question

QUESTION 89

A high-rise building that has water tanks on the roof will probably have a ________ water distribution system for the upper floors.

Upfeed

Pumped upfeed

Downfeed

None of the above

1 points   

QUESTION 90

Which of the following ratings evaluates the performance of a building "assembly" in a fire?

a.

Building Construction Type

b.

Flame Spread rating

c.

Fire Resistance Rating

d.

Location in a building

1 points   

QUESTION 91

Which of the following statements is not true?

All points in a DC circuit have polarity

AC voltage is the most common type of voltage used to produce work

DC voltage flows in one direction only

Two phase voltage is a combination of two alternating voltage waveforms

1 points   

QUESTION 92

What is the voltage in a circuit in which a 75W load draws .5 A?

37.5 V

75 V

120 V

150 V

1 points   

QUESTION 93

A building in Boston is kept at 70°F when the outdoor design temperature is 30°F. If the building envelope has an overall heat transfer coefficient (the combined U-factor value for walls, windows, roof, etc) of 0.05 Btuh/sf-°F, and the building dimensions (length x width x height) are 20'x50'x12', calculate the transmission heat loss through the building envelope and roof.

2000 Btuh

4000 Btuh

5360 Btuh

9400 Btuh

1 points   

QUESTION 94

The most common form of electricity is produced by what method?

Thermo coupling

Chemical reaction

Electromagnetic induction

Photovoltaic cell

1 points   

QUESTION 95

What is a plumbing clean-out used for?

Add water pressure

Allows access to the interior of Drainage system's piping

Increases drainage flow

None of the above

1 points   

QUESTION 96

Water movement in a pipe is usually caused by

Pressure

Flow rate

Volume

Velocity

1 points   

QUESTION 97

Changing a circuit's resistance changes the amount of ___________ flowing through the circuit.

Current

Voltage

Power

Energy

1 points   

QUESTION 98

The electrical contractor typically makes up what percentage of the total trade contractor costs?

5%

15%

25%

50%

1 points   

QUESTION 99

In a sanitary piping system which pipe contains solids?

a.

Soil pipe

b.

Waste Pipe

Answer 1