An oscilloscope is a(n) ____.
a. voltmeter
b. ohmmeter
c. ammeter
d. wattmeter
a. voltmeter
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Which of the following safety procedures should you follow when using power tools?
A. Never point the tool toward a person. B. Inspect all cords or hoses for wear, fraying, or damage. C. Make sure the tool is kept clean. D. All of the above
A series of ASME SA-193 carbon steel bolts are bolted to the upper surface of a metal plate. The bottom surface of the plate is subjected to a uniform heat flux of 5 kW/m2. The upper surface of the plate is exposed to ambient air with a temperature of 30°C and a convection heat transfer coefficient of 10 W/m2•K. The ASME Boiler and Pressure Vessel Code (ASME BPVC.IV-2015, HF-300) limits the maximum allowable use temperature to 260°C for the SA-193 bolts. Determine whether the use of these SA-193 bolts complies with the ASME code under these conditions. If the temperature of the bolts exceeds the maximum allowable use temperature of the ASME code, discuss a possible solution to lower the temperature of the bolts.
What will be an ideal response?
The overcurrent protective devices that supply the marina, boatyards, and commercial and noncommercial docking facilities are required to have ground-fault protection not exceeding:
1. 4 to 6 mA 2. 20 mA 3. 30 mA 4. 100 mA
In a direct digital control system the primary controller is the
A) bleed type thermostat. B) voltage amplifier. C) HVACR computer. D) Wheatstone bridge.