Instrumentation LVL 1 NCCER VERSION 4
2025 latest practice questions with answers
The simplest method for accurately measuring piping or tubing prior to
assembly is the _____. - CORRECT ANSWERS ✔✔Shoulder to shoulder
method
The colors of the conductors of a type j thermocouple are typically? -
CORRECT ANSWERS ✔✔White and red
If a persons heart is out of rhythm due to an electrical shock, the solution is to
__________ - CORRECT ANSWERS ✔✔Have a qualified person use
emergency defibrillation eqiupment
One mA is a unit of measure for current equal to _______ - CORRECT
ANSWERS ✔✔.001 amperes
How many more times are workers in the construction industry likely to be
electrocuted at work than all the other industries combined ? - CORRECT
ANSWERS ✔✔Four
For injury related calculations and statistics, low voltage is considered to be
anything under 500 volts. T or F - CORRECT ANSWERS ✔✔False
,Other than when the insulating value is in question, how frequently must
rubber protective equipment be electrically tested? - CORRECT ANSWERS
✔✔Every six months
On the job, it is best to wear personal clothing constructed of _______ -
CORRECT ANSWERS ✔✔Cotton
Which of these statements correctly describes a double insulated power tool? -
CORRECT ANSWERS ✔✔The entire tool is covered in rubber.
Once a worker crosses a prohibited approach boundary, for safety purposes it is
assumed that ________ - CORRECT ANSWERS ✔✔The worker will make
contact with an energized surface.
A potential shock hazard exist when exposed parts are energized at
___________ V or more - CORRECT ANSWERS ✔✔50V or more
Per OSHA, the proper PPE selected for entry into an arc flash hazard area
should protect the worker from first degree burns. T or F - CORRECT
ANSWERS ✔✔False
Which of the following is a correct statement related to a lockout/tagout
procedure ? - CORRECT ANSWERS ✔✔Lockout/Tagout devices are installed
by each authorized employee involved in the work related to the energy being
disabled.
,How many different multimeters are required to conduct a live-dead test on an
electrical circuit? - CORRECT ANSWERS ✔✔One
A damaged power tool should be removed from service and _________ -
CORRECT ANSWERS ✔✔Have a DO NOT USE tag applied
The OSHA and NIOSH time weighted averages (TWA) for exposure to a given
chemical relate to an average level of exposure consistent
over a period of _______ - CORRECT ANSWERS ✔✔8-10 Hours
The gas that can reach explosive levels when mixed with oxygen and which is
often released by vented batteries is _________ - CORRECT ANSWERS
✔✔Hydrogen
One meter is equal to ________ feet.
(Mod3Bk1) - CORRECT ANSWERS ✔✔3.281 feet
A room has a length of 3.568 meters & a width of 2.438 meters, whats the area
of the room in square feet ?
meters to ft
(x)3.281 - CORRECT ANSWERS ✔✔93.64 ft^2. (Squared)
, A wall penetration has inside dimensions of 16'' in x 12'' in . The area, in ft^2, is
equal to ___________
inchs to ft
(x) .0833 or (x) / 12 - CORRECT ANSWERS ✔✔1.33 ft^2
The value of pi , to 2 decimal places is ? - CORRECT ANSWERS ✔✔3.14
Pie = 3.1415
How many liters of liquid can a 55 gallon drum hold?
gal to liters
1 gal=3.785 liters
(x) 3.785 - CORRECT ANSWERS ✔✔208 Liters
A crate holding a control console is marked as weighing 175 lbs.
Whats its weight in Kilograms?
2025 latest practice questions with answers
The simplest method for accurately measuring piping or tubing prior to
assembly is the _____. - CORRECT ANSWERS ✔✔Shoulder to shoulder
method
The colors of the conductors of a type j thermocouple are typically? -
CORRECT ANSWERS ✔✔White and red
If a persons heart is out of rhythm due to an electrical shock, the solution is to
__________ - CORRECT ANSWERS ✔✔Have a qualified person use
emergency defibrillation eqiupment
One mA is a unit of measure for current equal to _______ - CORRECT
ANSWERS ✔✔.001 amperes
How many more times are workers in the construction industry likely to be
electrocuted at work than all the other industries combined ? - CORRECT
ANSWERS ✔✔Four
For injury related calculations and statistics, low voltage is considered to be
anything under 500 volts. T or F - CORRECT ANSWERS ✔✔False
,Other than when the insulating value is in question, how frequently must
rubber protective equipment be electrically tested? - CORRECT ANSWERS
✔✔Every six months
On the job, it is best to wear personal clothing constructed of _______ -
CORRECT ANSWERS ✔✔Cotton
Which of these statements correctly describes a double insulated power tool? -
CORRECT ANSWERS ✔✔The entire tool is covered in rubber.
Once a worker crosses a prohibited approach boundary, for safety purposes it is
assumed that ________ - CORRECT ANSWERS ✔✔The worker will make
contact with an energized surface.
A potential shock hazard exist when exposed parts are energized at
___________ V or more - CORRECT ANSWERS ✔✔50V or more
Per OSHA, the proper PPE selected for entry into an arc flash hazard area
should protect the worker from first degree burns. T or F - CORRECT
ANSWERS ✔✔False
Which of the following is a correct statement related to a lockout/tagout
procedure ? - CORRECT ANSWERS ✔✔Lockout/Tagout devices are installed
by each authorized employee involved in the work related to the energy being
disabled.
,How many different multimeters are required to conduct a live-dead test on an
electrical circuit? - CORRECT ANSWERS ✔✔One
A damaged power tool should be removed from service and _________ -
CORRECT ANSWERS ✔✔Have a DO NOT USE tag applied
The OSHA and NIOSH time weighted averages (TWA) for exposure to a given
chemical relate to an average level of exposure consistent
over a period of _______ - CORRECT ANSWERS ✔✔8-10 Hours
The gas that can reach explosive levels when mixed with oxygen and which is
often released by vented batteries is _________ - CORRECT ANSWERS
✔✔Hydrogen
One meter is equal to ________ feet.
(Mod3Bk1) - CORRECT ANSWERS ✔✔3.281 feet
A room has a length of 3.568 meters & a width of 2.438 meters, whats the area
of the room in square feet ?
meters to ft
(x)3.281 - CORRECT ANSWERS ✔✔93.64 ft^2. (Squared)
, A wall penetration has inside dimensions of 16'' in x 12'' in . The area, in ft^2, is
equal to ___________
inchs to ft
(x) .0833 or (x) / 12 - CORRECT ANSWERS ✔✔1.33 ft^2
The value of pi , to 2 decimal places is ? - CORRECT ANSWERS ✔✔3.14
Pie = 3.1415
How many liters of liquid can a 55 gallon drum hold?
gal to liters
1 gal=3.785 liters
(x) 3.785 - CORRECT ANSWERS ✔✔208 Liters
A crate holding a control console is marked as weighing 175 lbs.
Whats its weight in Kilograms?
