The rebar-tying method shown in the figure is called a _____
a. wrap-and-tie
b. standoff tie
c. bar hitch
d. nail-head tie
d
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What fastener needs to be installed prior to concrete placement?
a. Concrete screw b. Double expansion anchor c. Snap-off anchor d. Anchor bolt
Most lambs are born in early spring.
Answer the following statement true (T) or false (F)
If electricity from a solar energy system is connected to grid ___________
a. It must be 24 volts DC because the voltage on the grid is DC. b. It must be sent through an inverter because the frequency needs to be 60 Hz to match the voltage on the grid. c. Electricity from solar energy can never be connected to the grid.
Which of the following is true about RFID antennas?
A. larger antennas allow tags to be read at greater distances B. square antennas are common C. linear antennas have more accurate reads D. circular antennas have better range