If a fitting has grooves cut into the flats, this means that it connects to the ____.
A. blowtorch
B. regulator
C. oxygen system
D. acetylene system
Answer: D
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What is the scientific principle behind the use of pickling and fermentation for food preservation?
What will be an ideal response?
The __________ braking method uses a resistor to absorb kinetic energy from the rotating armature and load to stop the motor.
A. dynamic B. regenerative
It is expected that power functions represent the surface area and volume of a certain geometric shape. The values of the surface area and volume are given in the table below:
 FIGURE 1.png)
Answer the following statement(s) true (T) or false (F)
1. The relay is a magnetically operated switch. 2. Interlocking is used to cause some function to happen before some other function occurs. 3. The relay operates on the solenoid principle. 4. Eddy currents are currents induced in the core material by the magnetic field of the coil. 5. The term relay is often used to describe any type of electronically operated switch.