question

1. The primary standard method of calibration for UV absorption analyzers is

answer

(CEMICAL) calibration.

question

2. Visual loop turning is performed by applying equations and formulas?

answer

false

question

3. If the controller you are visually turning is equipped with set point tracking you should

answer

(disable the tracking feature)

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4. A system that uses multiple microprocessor based controllers, sensors, actuators, associated supportive devices and a communications network that links controller to a central computer is called

answer

(DISTRIBUTED/ DCS) control systems.

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5. If several gates are arranged in series, their propagation delays are subtractive.

answer

(FALSE)

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6. The primary element of a high temp electrochemical oxygen sensor is a

answer

(CERAMIC ZIRCONIUM OXIDE)

question

7. The ____ wiring systems promotes easy connections and low susceptibility to complete network failure

answer

BUS

question

8. An _____ gate has a 0 output when any of its inputs are a logic 1.

answer

NOR

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9. The binary numbering system characters is the

answer

(TWO) code

question

10. A falling ball is part of a type of

answer

VISCOMETERS

question

11. At temperature of -110 degrees F, at atmospheric pressure, carbon dioxide

answer

SOLIDIFIES

question

12. Changes in input and output are normally expressed as a percentage of the

answer

SPAN

question

13. Discrete I/O modules that use isolation circuits are _________ interfaces

answer

AC/DC

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14. Discrete I/O modules are used for ________________ interfaces

answer

true/false

question

15. In some critical processes,____________________ are installed.

answer

(REDUNDANT CONTROL BOXES IN PARALLEL)

question

16. Fiber-optic cable should be spliced using the same techniques applied to copper signal wiring.(

answer

false

question

17. If a controller in a loop is in manual mode, the control valve in that loop should be

answer

STEADY-NOT MOVING

question

18. The decimal numbering system is a base_____system.

answer

10

question

19. To minimize downtime, the most common method of repairing and maintaining instruments involves

answer

replacing the instrument on the line and fixing it later in the shop)

question

20. A scheduled plant instrument maintenance program is typically planned around the operations production schedule, maintenance staff, capabilities, and

answer

HISTORY FILES OF PAST FAILURES

question

21. ANSI standards Q91, Q92, and Q93 are technically equivalent to international standards ISO 9001, 9002, and 9003?

answer

(TRUE)

question

22. The _______ component of a fiber-optic cable transmits the light.

answer

(CORE)

question

23. ______ represents 50% of the span in a range of 50-250" of H2O.

answer

(150" H2O)

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24. If you apply and hold a steady 100" H2O to the high side of a DP transmitter and open the equalizer valve, the low side pressure will read

answer

(0" H2O).

question

25. An OTDR is used to test fiber-optic cable by sending a light source through the cable core and visually looking for the light at the other end of the cable.

answer

(TRUE)

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26. Calculators typically use _____ counters.

answer

(BCD)

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27. An_____________ gate has a logic high output when either of its inputs are high but not when both are high.

answer

(EXCLUSIVE OR GATE (XOR)

question

28. Calibration should always be performed with the instrument control loop isolated from the process?

answer

(TRUE)

question

Before performing any continuity test on any loop, ______________ the loop.

answer

(LOCK OUT/TAG OUT)

question

A _________ check is performed by equalizing the pressure on both sides of a DP transmitter.

answer

(ZERO)

question

PLC output coils are of two different types: standard or lach

answer

(TRUE)

question

The most widely used PLC language is ______________

answer

(LADDER LOGIC).

question

33. The process by which a PLC polls the inputs, executes the program and updates the outputs is called a scan?

answer

(TRUE)

question

34. The final step in commissioning should be ___________________

answer

(ASSEMBLING TEST RECORDS AND DOCUMENTS)

question

35. The logic equation for an OR gate is ______________

answer

(C=A+B)

question

36. Wally boxes generate dry regulated instrument air.

answer

TRUE

question

37. The Wally box is an ______________ type of calibration equipment.

answer

(PNEUMATIC)

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38. The purpose of drains when installing tubing or piping to s DP transmitter is for ____________________

answer

(BLOWING OUT CONDENSATE OR COMTAMINANTS).

question

39. A _________________contains all of the components and their tag numbers in a single loop.

answer

(LOOP SHEET)

question

40. Process analyzers can be more accurate than the laboratory analysis used to develop their calibration standard.

answer

(FALSE)

question

41. The simplest element of digital logic is the_______________

answer

INVERTER

question

42. One inch of water produces a pressure of ____________

answer

( .0360 PSI per inch- .0433 PSI per foot)

question

43. Atmospheric pressure =________

answer

(14.7)

question

44. Gaskets that are used for high-temp air applications ,such as boiler systems _________________ can be used for temperatures exceeding 1500 degrees

answer

(CERAMIC GASKETS)

question

45. Gaskets used in low pressure/ low temperature such as water, gas, air, refrigerant systems is ________________

answer

(RUBBER GASKETS)

question

46. One meter =________________

answer

(39.37 inches)

question

47. The recommended port diameter when selecting pressure regulators is ______________________________

answer

( THE SMALLEST DIAMETER THAT WILL HANDLE THE FLOW)

question

48. In most combination filter/ dryer systems , the system works best if the compressed air provided is first ______________________

answer

(DRIED IN A REFRIGERATION TYPE AIR DRYER)

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49. Standard drying and reactivation time cycle for a heat reactivated automatic dryer system is _________________

answer

(8 HOURS)

question

50. The condition of the output air in a typical refrigerant type drying systems is _____________________

answer

(BETWEEN 32.5 TO 33 DEGREES)

question

51. The primary element in an absorption dryer method that uses a process to liquefy the solids is _______________________

answer

( A SOLID BLOCK OF CEMICALS)

question

52. A major disadvantage of direct operated regulators is _________________________

answer

POOR SENSITIVITY

question

53. The controlling force in a direct operated regulator is __________________________

answer

(DOWNSTREAM PRESSURE)

question

54. Regardless of the type of loading used in regulators, the pressure entering the regulator acts against the ________________________

answer

(DOWNSTREAM PRESSURE)

question

55. Another name for direct-operated pneumatic regulators is _____________________ regulators.

answer

(SELF OPERATED)

question

56. The most frequent application of an electronic to pneumatic converter is to convert the signals necessary to ______________________________

answer

(OPERATE PNEUMATIC VALVES OR REGULATORS)

question

57. A device designed to maintain a constant pressure or flow in the output of a system is a ______________________

answer

(REGULATOR)

question

58. A recommended way to remove foreign particles from an edge filtration filter element is to __________________________________

answer

(REVERSE THE FLOW THROUGH THE ELEMENT)

question

59. One micron is equivalent to approximately _________________ inches

answer

(0.0000393)

question

60. An advantage of using an electrostatic precipitator is its _______________________

answer

(LOW ELECTRICAL COST)

question

61. Differential pressure is the sum of the low -side pressure and the high-side pressure on a DP transmitter

answer

(TRUE)

question

62. The time interval between the initiation of an input change or disturbance to a process and the start of the resulting process variable response is called__________________

answer

(DEADTIME)

question

63. The first time constant of process response includes the process dead time

answer

(FALSE)

question

64. A smart transmitter incorporates a ______________________that store data

answer

(MICROPROCESSOR)

question

65. An __________gate has an output of a logic 1 only if both of its inputs are a logic 1

answer

(AND)

question

66. A ______________ shows the connection details for control systems components.

answer

(loop diagram)

question

67. The derivative constant of a controller is expressed in units of _________________

answer

(SECONDS)

question

68. Using ________________ is considered the simplest method for measuring density or specific gravity in process.

answer

(BUBBLE TUBES)

question

69. ___________________ is a word or phrase often used interchangeable with density and expressed as a ratio of density.

answer

(SPECIFIC GRAVITY)

question

70. I/O modules that convert a varying voltage or current to a digital valve or vice-versa are _______________interfaces.

answer

(ANALOG)

question

71. A special I/O that sends out a train of pulses to a motor is an ________________ module.

answer

(STEPPER CONTROL)

question

72. Most process analyzers operate under the_______________ principle.

answer

(LABORATORY)

question

73. Rotation encoders use the ______________ code.

answer

(GREY)

question

74. A binary code that uses alphanumeric characters is the ______________ code.

answer

(ASCII)

question

75. This communications management method sends a data packet and waits for a confirmation that it has arrived at its destination

answer

(CONTENTION)

question

76.___________ is defined as the negative logarithm of the hydrogen ion activity.

answer

(PH)

question

77. Gas chromatography is a technique commonly used to separate and analyze ______________organic compounds.

answer

(VOLATILE)

question

78. Density of a liquid can be measured using radiation from a ___________________

answer

(RADIOACTIVE ISOTOPE).

question

79. The dynamic behavior of a system after a disturbance has occurred is called_________________

answer

(RESPONSE)

question

80. A "D" latch can be used to prevent ________________

answer

(A RACE CONDITION).

question

81. An______________ counter is a simple device that can be used to count up in binary code.

answer

(RIPPLE)

question

82. A shift register consists of a series of _______________

answer

(FLIP-FLOPS)

question

83. The most common THC analyzer operates on the principle of ____________

answer

(FID).

question

84. The ultimate gain or ultimate band is the maximum allowable valve of gain or proportional band in which the system is ____________

answer

(STABLE)

question

85. The most commonly used wiring scheme uses ____________topology.

answer

(HYBIRD)

question

86. A system that physically connects workstations together with communications cabling is called a ________________

answer

(LOCAL AREA NETWORK)

question

87. An arithmetic element that can perform addition , subtraction, multiplication, and division is known as an _______________

answer

(FULL ADDER)

question

88. The _______________equation is used to find out what percent a process has changed in a given time

answer

(COMPLETE RESPONSE)

question

89. A fluid whose viscosity is constant at any shear rate is classified as ________________

answer

(NEWTONIAN)

question

90. The reciprocal of resistance is ____________________

answer

(CONDUCTIVITY)

question

91. DP transmitters measure ________________________when used for liquid level applications.

answer

(HYDROSTATIC PRESSURE HEAD)

question

92. The process reaction curve that is used in open loop turning is generated by introducing ____________________________

answer

(A DISTURBANCE)

question

93. Because the majority of pneumatic instruments and processer cannot tolerate wet, hot compressed air, compressors are normally supplies with moisture separators and _________________

answer

(AFTERCOOLERS)

question

94. The __________________control function in a PID controlled loop provides an output that is proportional to the (RATE) of the error.

answer

(DERIVATIVE)

question

95. A TON is a______________

answer

(TIMER ON DELAY)

question

96. The internal storage memory of a PLC can include ___________________________

answer

(TIMER AND COUNTER INSTRUCTIONS)

question

97. Hart complainant field devices are used with an ____________________________________

answer

(SMART TRANSMITTER INTERFACE)

question

98. The work station that contains communication software that allows it to communicate with the data highway is called the _____________________

answer

(SERVER)

question

99. Proportional control occurs within a specified band around the _______________________

answer

(SETPOINT)

question

If a pump capitates its discharged pressure will ________________

answer

(OSCILLATE)

question

The inverse relationship of proportional band is called__________

answer

(GAIN)

question

Certain large capacity, multi-tasking PLC can have up to_______________connections.

answer

(125,000)

question

It's always a safe practice to change current process valve positions during troubleshooting procedures.

answer

(FALSE)

question

An ______________ signal is continuously variable with time.

answer

(ANALOG)

question

When proving a loop, you should always simulate the loops operation and not put the loop into actual operation

answer

(TRUE)

question

The set of rules that govern the arrangement and transmission of binary data along a bus is called _______________

answer

(PROTOCOLS)

question

A calibration test that simulates the input and measures the output is sufficient to verify the overall accuracy of a smart instrument.

answer

(TRUE)

question

Identifying the problem is a basic fundamental of a proving a loop.

answer

(TRUE)

question

109 ________________ is the testing required just before process fluids or chemicals are introduced into the system

answer

(COMMISSIONING)

question

Signal cable shields must be grounded on both ends to prevent ground loops.

answer

(FALSE)

question

The bulb server as a _____________________________in a temperature transmitter installation that uses a gas filled tube and bulb system.

answer

(PRIMARY DETECTING ELEMENT)

question

The first component in a control loop to have contact with the process is the _________________

answer

(PRIMARY ELEMENT)

question

Infrared radiation is visible in the dark to the human eye.

answer

(FALSE)

question

114 In order for any system to be stable, its Entergy equations must be _____________________

answer

(BALANCED)

question

The Boolean equation for an amplifier is _________

answer

(A=B)

question

Safety devices and interlocks should be tested before __________________________

answer

(PROVING THE LOOP)

question

If a control loop must convert an analog current signal to a pneumatic signal to be used by a control valve, an ____________________must be used to make this signal conversion.

answer

(I/P TRANSDUCER)

question

When using a bubbler in testing pneumatic lines, bubbles in the water filled glass bowl indicate _______________

answer

(A LEAK)

question

The first task in the mechanical testing of a loop should be _______________________ the loop.

answer

(VISUALLY INSPECTING)

question

120 In a Foxboro 12a series transmitter the zero can be elevated but not suppressed.

answer

(FALSE)

question

The most common form of communicating a problem in an operation loop or process is _______________________

answer

(OPERATOR FEEDBACK)

question

Volatile organic materials that make up the THC contain at least one hydrogen atom and at least one atom of _______________

answer

(CARBON)

question

Oxygen has a very high magnetic susceptibility to other gasses.

answer

(TRUE)

question

An AND gate with a inverter on its output is known as a_________________

answer

(NAND GATE)

question

125 The Jackson turbid meter uses ________________ as a light source.

answer

(A CANDLE)

question

All instruments that provide a proportional output signal based on an input signal must be ______________________

answer

(CALIBRATED)

question

The UV spectrophotometer is used to determine wavelength

answer

(FALSE)

NCCER – RU

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