Domain 3 Flashcards
- What does the following line symbol represent?
A. A hydraulic signal
B. A guided sonic signal
C. A filled sensing line
D. A communication link.
C. A filled sensing line
- Which document is usually the first developed at the beginning of a project?
A. Loop diagram
B. Piping and instrumentation diagram
C. Instrumentation index
D. Process flow diagram
D. Process flow diagram
- Preventing injury due to the _____________ startup of machines or equipment and the release of stored energy, is the purpose of lockout / tagout.
A. Planned
B. Regulated
C. Unscheduled
D. Unexpected
D. Unexpected
- _____________ is not considered a change according to management of change procedures.
A. Modification to procedures
B. Modification to equipment
C. Replacement in kind
D. Replacement of raw material
C. Replacement in kind
- According to article 500 of the NEC, which part defines that flammable gases, flammable liquid produced vapors, or combustible liquid produced papers exist in concentrations capable of ignition during normal operating conditions?
A. Class I, Division I
B. Class I, Division II
C. Class II, Division I
D. Class II, Division II
A. Class I, division I
- A diamond on instrumentation diagram encloses information about:
A. Calibration
B. The setpoint
C. Controller action
D. The power source
B. The setpoint
- Central connection points for signal lines are called:
A. Instrument ports
B. Junction boxes
C input / output
D. Field ports
B. Junction boxes
- Which of the following steps is not necessary when the employee who applied a lockout or tag out device is not available for its removal?
A. Verification by the employer that the authorized employee is not at the facility
B. Verification that equipment can wait until the employee returns to work
C. Making all reasonable efforts to contact the employee to inform him or her that device has been removed
D. Ensuring that the employee has the knowledge of device removal before his or her return to work
B. Verification that equipment can wait until the employee returns to work
- On an instrumentation diagram, the loop identification:
A. Consists of two, three, or four letters
B. Is the same for all instruments in a specific loop
C. Identifies the measured or initiating variable
D. Appears in the upper portion of the instrument balloon
B. Is the same for all instruments in a specific loop
- Process instrument connection lines are indicated on an instrumentation diagram by:
A. Bold solid lines
B. Fine solid lines
C. Bold broken lines
D. Fine broken lines
B. Fine solid lines
- The following instrument or function symbol _______________.
A. Is a discrete instrument
B. Is a discrete instrument, not normally operator accessible
C. Is a computer or software function
D. Is a computer or software function, not normally operator accessible
D. Is a computer or software function, not normally operator accessible
- The pneumatic control valve in this storage tank pressure control system:
A. Will fail open
B. Will fail locked
C. Will fail closed
D. Will never fail
A. Will fail open
- In instrumentation, the term “loop” usually defines:
A. A circle in the instrument signal lines to help minimize the effects of vibration
B. A circle in the instrument piping to reduce water hammer
C. A combination of two or more interconnected instruments
D. An internal RC filtering circuit to reduce electrical noise
C. A combination of two or more interconnected instruments
- Which of the following does not usually appear on a loop diagram?
A. Interlocks
B. Termination numbers
C. Manufacturer’s information
D. Junction boxes
C. Manufacturer’s information
- Which permit would be required to go into a space that may not have enough oxygen to breathe?
A. A hot work permit
B. A confined space permit
C. A read to work permit
D. An excavation permit
B. A confined space permit
