Instrumentation LVL 1 NCCER VERSION 4 2026
questions with complete solutions
The simplest method for accurately measuring piping or tubing prior to assembly
is the Shoulder to shoulder method
1. The colors of the conductors of a type j thermocouple are typically?: White and red
2. If a persons heart is out of rhythm due to an electrical shock, the solution is to
: Have a qualified person use emergency defibrillation eqiupment
3. One mA is a unit of measure for current equal to : .001 amperes
4. How many more times are workers in the construction industry likely to be
electrocuted at work than all the other industries combined ?: Four
5. For injury related calculations and statistics, low voltage is considered to be
anything under 500 volts. T or F: False
6. Other than when the insulating value is in question, how frequently must
rubber protective equipment be electrically tested?: Every six months
7. On the job, it is best to wear personal clothing constructed of : Cotton
8. Which of these statements correctly describes a double insulated power
tool?: The entire tool is covered in rubber.
9. Once a worker crosses a prohibited approach boundary, for safety purpos-es it
is assumed that : The worker will make contact with an energized surface.
10. A potential shock hazard exist when exposed parts are energized at
V or more: 50V or more
11. 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: False
12. Which of the following is a correct statement related to a lockout/tagout
procedure ?: Lockout/Tagout devices are installed by each authorized employee involved in the work related to the
energy being disabled.
13. How many different multimeters are required to conduct a live-dead test on
an electrical circuit?: One
14. A damaged power tool should be removed from service and : Have
a DO NOT USE tag applied
15. 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 : 8-10 Hours
,16. The gas that can reach explosive levels when mixed with oxygen and which is
often released by vented batteries is : Hydrogen
17. One meter is equal to feet.
(Mod3Bk1): 3.281 feet
18. 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: 93.64 ft^2. (Squared)
19. 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: 1.33 ft^2
20. The value of pi , to 2 decimal places is ?: 3.14
Pie = 3.1415
21. How many liters of liquid can a 55 gallon drum hold?
gal to liters
1 gal=3.785 liters
(x) 3.785: 208 Liters
22. A crate holding a control console is marked as weighing 175 lbs.
Whats its weight in Kilograms?
1 lbs = .454 kg
( / ) by 2.205 or (x) by .454: 79.38 kilograms
, 23. Find the absolute pressure if a gauge reads 164 psig
(x) + 14.7 =: 178.38 psia (absolute pressure)
24. A temperature of 0 degrees Celcius is equal to
Deg F -.8 = 0 deg Celc
( (x) - 32 ) / 1.8 = 0 deg Celc: 32 degrees Fahrenheit
25. A temperature of 68 deg F is equal to
(x) - .8 = deg C
68-.8 = deg C
36/1.8 = deg C: 20 deg Celc
26. The square root of 12,500, which is expressed mathematically as (———-) is
equal to?: 111.803
27. 6^2 is the same as?
1. 6x6= (x)
2. = (x): 36
28. Given the equation P=E^2 / R, rewrite it to solve for RAns 1. R (P=E^2 / R) (R) Use R by
mult on both sides.
2. R (P) /P = E^2 /P Use P by dividi. on both sides
3. R = E^2 / P
29. The distance from the center of a circle to any point on the curved line is
called the : Radius
30. A triangle in which all sides are unequal length is called ?: Scalene Triangle
31. Which of the following is not an accurate form of the pythagorean theorem
?: Correct Form:
questions with complete solutions
The simplest method for accurately measuring piping or tubing prior to assembly
is the Shoulder to shoulder method
1. The colors of the conductors of a type j thermocouple are typically?: White and red
2. If a persons heart is out of rhythm due to an electrical shock, the solution is to
: Have a qualified person use emergency defibrillation eqiupment
3. One mA is a unit of measure for current equal to : .001 amperes
4. How many more times are workers in the construction industry likely to be
electrocuted at work than all the other industries combined ?: Four
5. For injury related calculations and statistics, low voltage is considered to be
anything under 500 volts. T or F: False
6. Other than when the insulating value is in question, how frequently must
rubber protective equipment be electrically tested?: Every six months
7. On the job, it is best to wear personal clothing constructed of : Cotton
8. Which of these statements correctly describes a double insulated power
tool?: The entire tool is covered in rubber.
9. Once a worker crosses a prohibited approach boundary, for safety purpos-es it
is assumed that : The worker will make contact with an energized surface.
10. A potential shock hazard exist when exposed parts are energized at
V or more: 50V or more
11. 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: False
12. Which of the following is a correct statement related to a lockout/tagout
procedure ?: Lockout/Tagout devices are installed by each authorized employee involved in the work related to the
energy being disabled.
13. How many different multimeters are required to conduct a live-dead test on
an electrical circuit?: One
14. A damaged power tool should be removed from service and : Have
a DO NOT USE tag applied
15. 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 : 8-10 Hours
,16. The gas that can reach explosive levels when mixed with oxygen and which is
often released by vented batteries is : Hydrogen
17. One meter is equal to feet.
(Mod3Bk1): 3.281 feet
18. 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: 93.64 ft^2. (Squared)
19. 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: 1.33 ft^2
20. The value of pi , to 2 decimal places is ?: 3.14
Pie = 3.1415
21. How many liters of liquid can a 55 gallon drum hold?
gal to liters
1 gal=3.785 liters
(x) 3.785: 208 Liters
22. A crate holding a control console is marked as weighing 175 lbs.
Whats its weight in Kilograms?
1 lbs = .454 kg
( / ) by 2.205 or (x) by .454: 79.38 kilograms
, 23. Find the absolute pressure if a gauge reads 164 psig
(x) + 14.7 =: 178.38 psia (absolute pressure)
24. A temperature of 0 degrees Celcius is equal to
Deg F -.8 = 0 deg Celc
( (x) - 32 ) / 1.8 = 0 deg Celc: 32 degrees Fahrenheit
25. A temperature of 68 deg F is equal to
(x) - .8 = deg C
68-.8 = deg C
36/1.8 = deg C: 20 deg Celc
26. The square root of 12,500, which is expressed mathematically as (———-) is
equal to?: 111.803
27. 6^2 is the same as?
1. 6x6= (x)
2. = (x): 36
28. Given the equation P=E^2 / R, rewrite it to solve for RAns 1. R (P=E^2 / R) (R) Use R by
mult on both sides.
2. R (P) /P = E^2 /P Use P by dividi. on both sides
3. R = E^2 / P
29. The distance from the center of a circle to any point on the curved line is
called the : Radius
30. A triangle in which all sides are unequal length is called ?: Scalene Triangle
31. Which of the following is not an accurate form of the pythagorean theorem
?: Correct Form:
