For the following questions, mark True or False:  1. A wide range of sensor technologies is required to support augmented reality and virtual reality (AR/VR) systems. [1] 2. Today’s AR/VR implementations are mostly focused on audio interfaces and rely on temperature tracking sensors. [2] 3. Devices that can add a thermal dimension to AR/VR environments are not considered significant in current research. [3] 4. Thermal sensing technologies proposed for AR/VR systems include thermoresistive, pyroelectric, thermoelectric, and thermogalvanic technologies. [4] 5. Thermo-haptics or thermal stimulation is another emerging area of AR/VR that will provide an enhanced level of immersion in AR/VR environments. [5]

35 psig is equal to __________ psia?

When you are checking a starting relay with the jaws of a clamp-on ammeter around one of the wires connected to the start capacitor, a continuous current draw would indicate which of the following conditions?

On a building with a two-stage heating thermostat, the first stage closes at the setpoint and the next stage closes:

Which major refrigeration cycle component absorbs heat into the liquid refrigerant causing it to boil into a vapor?

Mark True or False regarding tracking systems. 1. Inertial Measurement Units merge accelerometers and gyroscopes, often alongside a magnetometer. [1] 2. For tracking in VR, we typically care about linear acceleration or angular velocity, not position and orientation. [2] 3. Integration converts measurements of velocity or acceleration in positions and orientations. [3] 4. Drift is typically corrected by additional sensors. [4] 5. Mechanical Linkage Systems use sensors at joints to detect angles, and compute a position. [5]  

Which of the following combustible gases is lighter than air?

 Vent connectors shall not be increased in size more than________ greater than the listed appliance categorized vent diameter, flue collar, or draft hood outlet.

When larger A/C loads require larger contactors that operate on line voltage because of their larger size, what additional component must be used to control these contactors?

In the HVAC and plumbing industry, steel pipe is usually joined by _______________ pipe threads.