NCCER Tech Study Guide | 103 Questions and Verified Solutions Latest 2024 Update

NCCER Tech Study Guide | 103 Questions and Verified Solutions Latest 2024 Update What type of input does a valve actuator receive from a 4 to 20mA transducer? - Answer -Pneumatic The hydrostatic pressure created in a 10-foot tank with 8 feet water level is? - Answer -3. 46 psi 27.7 in = 1 psi What is density? - Answer -The ratio of a substance to the weight of an equal volume of air at a specific temperature and pressure Viscosity is analyzed in all of the following ways: - Answer --Falling ball method -Capillary method -Turbine method What part of the instrument installation drawing lists the required fittings? - Answer -Bill of Materials An electrostatic precipitator is used to: - Answer -Removes particles in a gas stream Pressure switches are actuated by: - Answer -Bellows, diaphragms, and actuator An electric switch is used: - Answer -A device that makes or breaks a circuit The set point on a controller is a specific value at which: - Answer -A process variable is to be maintained What are typical applications of photocells: - Answer -Automatic light control Position sensing Size detection A worker knows the tag number of an instrument and needs to identify the drawings and documents relating to that particular instrument. What drawing would he need to look at? - Answer -Instrument Index The applications of a signal passing through the hard wiring and components without leakage is a/an: - Answer -Transmission Test