INSTRUMENTATION TECHNICIAN EXAM QUESTIONS
WITH ACTUAL ANSWERS | GRADED A+ .
most life threatening hazards on a construction site include the following - correct Answers -Chemical
exposure
person's heart begins to fibrillate due to electrical shock the solution is to ________ - correct Answers -
Have qualified person use emergency defibrillation equipment
The majority of injuries due to electrical shock are caused by - correct Answers -Contact with low voltage
conductors
Class 0 rubber gloves are used when working with voltages less than - correct Answers -1,000 volts
An important use of a hot stick is to - correct Answers -Replace fuses
The following statement correctly describes a double insulated power tool - correct Answers -can safely
used place of grounded tool
following applies in lockout tagout procedure - correct Answers -Lockout tagout devices are installed by
every authorized employee involved the work day
proper distance from the feet of straight ladder to the wall - correct Answers -One fourth the working of
the ladder
The minimum and maximum distances in inches that scaffold plank can extend beyond its end support
are______ - correct Answers -6, 12
1
,following condition applies to permit required confined space but not to a permit required space
controlled by ventilators - correct Answers -completed attendant whose job to monitor the space must
be stationed outside the space
Cast iron contains Cast iron contains ___ percent carbon - correct Answers -Between 2 and 4
The element in steel that primarily determines its hardness and strength is - correct Answers -Carbon
Low carbon steels usually contain less than _____ percent carbon - correct Answers -0.35
Hard copper is annealed to make it - correct Answers -Softer and more ductile
The test sample used in a tensile strength test must be a specific - correct Answers -Diameter
The resistance force or tensile yield strength of a metal product is expressed in ______ per square inch -
correct Answers -Thousands of pounds
The carbon content of the steel with SAE code number of 8720 is about ____ percent - correct Answers -
0.20
When cutting steel from color coded stock always cut from the - correct Answers -Unpainted end
file test can be used to determine the ____ steel - correct Answers -Carbon content
type of metal product to be used on a usually designated in the project ____ - correct Answers -
specifications
organization that established a standard set of symbols and identification techniques that are widely
used for instrument drawings and documents is - correct Answers -ISA
2
,single solid line drawn through the instrument balloon indicates that - correct Answers -instrument is in
a primary location normally accessible to the operator
programmable logic controller ( PLC ) and a ____________ share the same instrument symbol which is
aI hexagon - correct Answers -Distributed control system ( DCS)
A letter _____ may have one meaning as a first let ter and another meaning as a second letter - correct
Answers -User's choice
the first letter of the tag number for all the instruments in a loop F the measured or initiating variable is
- correct Answers -Flow rate
A succeeding letter may be defined as all of the following except_______ - correct Answers -Inversing
When used as a first letter modifier the letter ____ applies only to emergency protective elements and
emergency protective final control elements - correct Answers -S
Sometimes succeeding letter designations are modified to reflect the - correct Answers -Needs of a
particular project
Loop numbering may be parallel or - correct Answers -Serial
A primary flow element symbol that looks like a square box with an inverted L in it is used to represent a
- correct Answers -Pitot tube
The instrument signal line symbol that consists of a single solid line with Ls drawn through it represents
a ____ signal - correct Answers -Hydraulic
______ lines represent the piping that carries working process fluids - correct Answers -Process piping
_____ signal line symbols have groups of three slashes across the main line - correct Answers -Process
piping
3
, If you wanted to find the manufacturer of instrument with a specific tag number the best place to locate
that information is in the - correct Answers -Instrument index
Each of the following is typically found on an instrument index except_ - correct Answers -List of
symbols
are included on most instrument drawings to provide special information or directions about the
process or instruments in the drawings - correct Answers -Notes and details
The callout numbers on an installation detail drawing relate to the numbered items on the - correct
Answers -Materials list
To get complete understanding of the job you should analyze and _______ Instrument drawings -
correct Answers -Cross reference
The elevation at which an instrument is to be installed is likely to be found on the - correct Answers -
Location drawing
A drawing that illustrates the interconnection of devices from the primary element the field to the board
mounted instruments on the control panel to the final control devices is called ( _______ - correct
Answers -Loop drawing
Once the size of a gasket or O ring is factors must be determined considered before choosing a gasket or
O ring - correct Answers -Compatibility
Natural rubber has a limited chemical resistance to - correct Answers -Petroleum products
Serrated and corrugated gaskets are made of - correct Answers -Metal
Copper gaskets are - correct Answers -Not used in high pressure/ high temperature steam systems
4
WITH ACTUAL ANSWERS | GRADED A+ .
most life threatening hazards on a construction site include the following - correct Answers -Chemical
exposure
person's heart begins to fibrillate due to electrical shock the solution is to ________ - correct Answers -
Have qualified person use emergency defibrillation equipment
The majority of injuries due to electrical shock are caused by - correct Answers -Contact with low voltage
conductors
Class 0 rubber gloves are used when working with voltages less than - correct Answers -1,000 volts
An important use of a hot stick is to - correct Answers -Replace fuses
The following statement correctly describes a double insulated power tool - correct Answers -can safely
used place of grounded tool
following applies in lockout tagout procedure - correct Answers -Lockout tagout devices are installed by
every authorized employee involved the work day
proper distance from the feet of straight ladder to the wall - correct Answers -One fourth the working of
the ladder
The minimum and maximum distances in inches that scaffold plank can extend beyond its end support
are______ - correct Answers -6, 12
1
,following condition applies to permit required confined space but not to a permit required space
controlled by ventilators - correct Answers -completed attendant whose job to monitor the space must
be stationed outside the space
Cast iron contains Cast iron contains ___ percent carbon - correct Answers -Between 2 and 4
The element in steel that primarily determines its hardness and strength is - correct Answers -Carbon
Low carbon steels usually contain less than _____ percent carbon - correct Answers -0.35
Hard copper is annealed to make it - correct Answers -Softer and more ductile
The test sample used in a tensile strength test must be a specific - correct Answers -Diameter
The resistance force or tensile yield strength of a metal product is expressed in ______ per square inch -
correct Answers -Thousands of pounds
The carbon content of the steel with SAE code number of 8720 is about ____ percent - correct Answers -
0.20
When cutting steel from color coded stock always cut from the - correct Answers -Unpainted end
file test can be used to determine the ____ steel - correct Answers -Carbon content
type of metal product to be used on a usually designated in the project ____ - correct Answers -
specifications
organization that established a standard set of symbols and identification techniques that are widely
used for instrument drawings and documents is - correct Answers -ISA
2
,single solid line drawn through the instrument balloon indicates that - correct Answers -instrument is in
a primary location normally accessible to the operator
programmable logic controller ( PLC ) and a ____________ share the same instrument symbol which is
aI hexagon - correct Answers -Distributed control system ( DCS)
A letter _____ may have one meaning as a first let ter and another meaning as a second letter - correct
Answers -User's choice
the first letter of the tag number for all the instruments in a loop F the measured or initiating variable is
- correct Answers -Flow rate
A succeeding letter may be defined as all of the following except_______ - correct Answers -Inversing
When used as a first letter modifier the letter ____ applies only to emergency protective elements and
emergency protective final control elements - correct Answers -S
Sometimes succeeding letter designations are modified to reflect the - correct Answers -Needs of a
particular project
Loop numbering may be parallel or - correct Answers -Serial
A primary flow element symbol that looks like a square box with an inverted L in it is used to represent a
- correct Answers -Pitot tube
The instrument signal line symbol that consists of a single solid line with Ls drawn through it represents
a ____ signal - correct Answers -Hydraulic
______ lines represent the piping that carries working process fluids - correct Answers -Process piping
_____ signal line symbols have groups of three slashes across the main line - correct Answers -Process
piping
3
, If you wanted to find the manufacturer of instrument with a specific tag number the best place to locate
that information is in the - correct Answers -Instrument index
Each of the following is typically found on an instrument index except_ - correct Answers -List of
symbols
are included on most instrument drawings to provide special information or directions about the
process or instruments in the drawings - correct Answers -Notes and details
The callout numbers on an installation detail drawing relate to the numbered items on the - correct
Answers -Materials list
To get complete understanding of the job you should analyze and _______ Instrument drawings -
correct Answers -Cross reference
The elevation at which an instrument is to be installed is likely to be found on the - correct Answers -
Location drawing
A drawing that illustrates the interconnection of devices from the primary element the field to the board
mounted instruments on the control panel to the final control devices is called ( _______ - correct
Answers -Loop drawing
Once the size of a gasket or O ring is factors must be determined considered before choosing a gasket or
O ring - correct Answers -Compatibility
Natural rubber has a limited chemical resistance to - correct Answers -Petroleum products
Serrated and corrugated gaskets are made of - correct Answers -Metal
Copper gaskets are - correct Answers -Not used in high pressure/ high temperature steam systems
4
