Instrument tech nccer Questions and Answers (100%
Guaranteed Pass)
The drawing classification number for "04-I201" is - ANSWER 2
Hazardous location codes applicable to a particular instrument can be found on the -
ANSWER instrument data sheet
The text in or near a circle on a drawing representing a motor will often be the
motor's - ANSWER horsepower
The symbol that travels up, cascades up & down, then drops down again represents
a - ANSWER potentiometer
The symbol with 2 coils with opposing horizontal top & bottom ends & 3 vertical lines
down the middle of the coils is a - ANSWER iron-core transformer
The type of diagram that shows all of the connections of the individual conductors in
an electrical system or circuit is a - ANSWER three-line diagram
In electrical block diagrams, a single line may represent one wire or - ANSWER
several wires
Internal & external are the 2 classifications of - ANSWER wiring diagrams
Which type of wiring diagram generally uses a table to show the starting &
termination points of each wire? - ANSWER Lineless
In addition to showing the physical layout of raceways, raceway drawings also show
the - ANSWER raceway elevation
On cable tray drawings, a notation of BOT would indicate - ANSWER bottom of tray
A type of instrumentation drawing that shows the operational layout of a system and
the relationship between system components but NOT the physical location of the
components is a - ANSWER P&ID
What is indicated when 2 different devices on a P&ID share the same numeric part
of the ID? - ANSWER The devices are grouped together at the same location
In the loop identification number 21-TRC, the TRC represents the - ANSWER
measured variable
The calibration data & specification number for an instrument can be found on a -
ANSWER loop sheet
, In a typical ladder diagram, the incoming power source lines, such as L1 & L2, are
drawn to appear as - ANSWER the uprights of a ladder
The type of diagram that is often used to show the sequence of operation for a PLC
is a - ANSWER ladder diagram
The drawing that shows where an instrument is to be installed in relation to the
physical plant layout is called a - ANSWER location drawing
Process flow drawings (PFDs) are often used in conjunction with - ANSWER P&IDs
If an instrumentation technician who is troubleshooting a system wants to confirm
that the problem is in the distribution of the conductors, the best diagram for the
technician to refer to is the - ANSWER raceway drawing
An instrument index lists every instrument used on a project by its - ANSWER tag
number
Which of these documents would be used to identify the drawings & documents
related to a specific instrument with a known tag number? - ANSWER instrument
index
The instrument installation requirement, "The gauge glasses of field-mounted, liquid-
level controllers are to be clearly visible", would most likely be included in the -
ANSWER general instrument specifications
The drawing that would most likely show where a particular instrument is to be
installed, and the elevation at which it is to be installed is the - ANSWER location
drawing
The materials list on an installation detail drawing normally contains - ANSWER a
list of parts & materials needed to install the instrument
The organization that created & maintains the standardized library of instrumentation
symbols is the - ANSWER International Society of Automation (ISA)
The instrument symbol for a field-mounted device has - ANSWER no lines drawn
through it
The instrument symbol that designated a computer function is a - ANSWER
hexagon
The instrument signal line symbol that is a broken line with no other markings on it or
has groups of 3 slashes across a solid line represents an - ANSWER electric or
electronic signal
If there is an M inside the actuator symbol attached to a valve, the valve is actuated -
ANSWER by a motor
Guaranteed Pass)
The drawing classification number for "04-I201" is - ANSWER 2
Hazardous location codes applicable to a particular instrument can be found on the -
ANSWER instrument data sheet
The text in or near a circle on a drawing representing a motor will often be the
motor's - ANSWER horsepower
The symbol that travels up, cascades up & down, then drops down again represents
a - ANSWER potentiometer
The symbol with 2 coils with opposing horizontal top & bottom ends & 3 vertical lines
down the middle of the coils is a - ANSWER iron-core transformer
The type of diagram that shows all of the connections of the individual conductors in
an electrical system or circuit is a - ANSWER three-line diagram
In electrical block diagrams, a single line may represent one wire or - ANSWER
several wires
Internal & external are the 2 classifications of - ANSWER wiring diagrams
Which type of wiring diagram generally uses a table to show the starting &
termination points of each wire? - ANSWER Lineless
In addition to showing the physical layout of raceways, raceway drawings also show
the - ANSWER raceway elevation
On cable tray drawings, a notation of BOT would indicate - ANSWER bottom of tray
A type of instrumentation drawing that shows the operational layout of a system and
the relationship between system components but NOT the physical location of the
components is a - ANSWER P&ID
What is indicated when 2 different devices on a P&ID share the same numeric part
of the ID? - ANSWER The devices are grouped together at the same location
In the loop identification number 21-TRC, the TRC represents the - ANSWER
measured variable
The calibration data & specification number for an instrument can be found on a -
ANSWER loop sheet
, In a typical ladder diagram, the incoming power source lines, such as L1 & L2, are
drawn to appear as - ANSWER the uprights of a ladder
The type of diagram that is often used to show the sequence of operation for a PLC
is a - ANSWER ladder diagram
The drawing that shows where an instrument is to be installed in relation to the
physical plant layout is called a - ANSWER location drawing
Process flow drawings (PFDs) are often used in conjunction with - ANSWER P&IDs
If an instrumentation technician who is troubleshooting a system wants to confirm
that the problem is in the distribution of the conductors, the best diagram for the
technician to refer to is the - ANSWER raceway drawing
An instrument index lists every instrument used on a project by its - ANSWER tag
number
Which of these documents would be used to identify the drawings & documents
related to a specific instrument with a known tag number? - ANSWER instrument
index
The instrument installation requirement, "The gauge glasses of field-mounted, liquid-
level controllers are to be clearly visible", would most likely be included in the -
ANSWER general instrument specifications
The drawing that would most likely show where a particular instrument is to be
installed, and the elevation at which it is to be installed is the - ANSWER location
drawing
The materials list on an installation detail drawing normally contains - ANSWER a
list of parts & materials needed to install the instrument
The organization that created & maintains the standardized library of instrumentation
symbols is the - ANSWER International Society of Automation (ISA)
The instrument symbol for a field-mounted device has - ANSWER no lines drawn
through it
The instrument symbol that designated a computer function is a - ANSWER
hexagon
The instrument signal line symbol that is a broken line with no other markings on it or
has groups of 3 slashes across a solid line represents an - ANSWER electric or
electronic signal
If there is an M inside the actuator symbol attached to a valve, the valve is actuated -
ANSWER by a motor
