Instrumentation LVL 1 NCCER EXAM STUDY
GUIDE 2026/2027 COMPLETE QUESTIONS
WITH VERIFIED CORRECT ANSWERS ||
100% GUARANTEED PASS
<NEWEST VERSION>
1. The simplest method for accurately measuring piping or tubing prior to
assembly is the _____. - ANSWER ✔ Shoulder to shoulder method
2. The colors of the conductors of a type j thermocouple are typically? -
ANSWER ✔ White and red
3. If a persons heart is out of rhythm due to an electrical shock, the solution is
to __________ - ANSWER ✔ Have a qualified person use emergency
defibrillation eqiupment
4. One mA is a unit of measure for current equal to _______ - ANSWER ✔
.001 amperes
5. How many more times are workers in the construction industry likely to be
electrocuted at work than all the other industries combined ? - ANSWER ✔
Four
6. For injury related calculations and statistics, low voltage is considered to be
anything under 500 volts. T or F - ANSWER ✔ False
,7. The formula for calculating the total resistance in a series circuit with three
resistors is _____.
8. MOD 3 BK 3 - ANSWER ✔ R(Total) = R1 + R2 + R3
9. The total resistance in a series circuit with three resistances of 10Ω, 20Ω,
and 30Ω is _____. - ANSWER ✔ 60 Ohms
10.The formula for calculating the total resistance in a parallel circuit with three
resistors is _____. - ANSWER ✔ R(Total) = 1 / (1/R1 + 1/R2 + 1/R3)
11.The total resistance of the circuit shown in Review Question Figure RQ01 is
_____. - ANSWER ✔ 400 Ohms
Example is just a combination series and parallel circuit problem. Simple
12.In a parallel circuit, the voltage across any branch is equal to the _____. -
ANSWER ✔ Path resistance times total current
13.The total current (I) of the circuit shown in Review Question Figure RQ02 is
_____.
1. Find Total Resistance
Rt = 1 / (1/40 + 1/40)
2. Use total R along with E total voltage (100V) to find total current using
ohms law I = E / R - ANSWER ✔ Rt = 1 / (1/40 + 1/40)
Rt = 1/(1/.025 + 1/.025)
Rt = 1/.05 ————> Rt = 20
Et = 100V.
Find the total current (It)
It = Et / Rt ————> It = 100V / 20 It = 5A
,14.A resistor of 32Ω is in parallel with a resistor of 36Ω, and a 54Ω resistor is
in series with the pair. When 350V is applied to the combination, the total
current (IT) for the circuit is _____. - ANSWER ✔ 4.93 Amps.
(1). Rt = R1 x R2 / R1 + R2
(2). + 54 = Rt
It = Et / Rt (3). It = 350 / Rt
15.A 242Ω resistor is in parallel with a 180Ω resistor, and a 420Ω resistor is in
series with the combination. A current of 22mA flows through the 242Ω
resistor. The current through the 180Ω resistor is _____. - ANSWER ✔ 29.6
mA
16.RELEARN. Couldn't figure out how to set up and solve without being given
the voltage.
17.Two 24Ω resistors (R1 and R2) are in parallel, and a 42Ω resistor (R3) is in
series with the combination. When 78V is applied to the three resistors, the
voltage drop across R3 is _____. - ANSWER ✔ 60.7 V
18.RELEARN. Couldn't figure out how to set up and solve without being given
the voltage.
19.A 19Ω resistor (R1) is in parallel with an 18Ω resistor (R2), and in series
with the two is a 14Ω resistor (R3). When 70V is applied to this
combination, the current through R1 is _____. - ANSWER ✔ RELEARN
20.The number of cycles an alternating electric current undergoes per second is
known as _____. - ANSWER ✔ Frequency
, 21.The peak voltage in a 120VAC circuit is _____. - ANSWER ✔ 170 V
22.In a circuit of pure resistance, the voltage and current are _____. - ANSWER
✔ In phase
23.The opposition to current flow offered by the capacitance of a circuit is
known as _____. - ANSWER ✔ Capacitive resistance
24.True power is equal to _____. - ANSWER ✔ I^2 x R
(I squared times R)
25.A switching regulator maintains the output voltage of a power supply within
a specified range by _____. - ANSWER ✔ Varying the drive current of the
high frequency chopper circuit
26.Linear DC power supplies have the disadvantage of being _____. -
ANSWER ✔ Heavier than switching power supplies
27.What must be taken into account when selecting a power supply? -
ANSWER ✔ The code requirements
28.The value of an analog input signal varies with the change in magnitude of
the _____. - ANSWER ✔ Process
29.The On value of a digital signal is _____. - ANSWER ✔ 1
GUIDE 2026/2027 COMPLETE QUESTIONS
WITH VERIFIED CORRECT ANSWERS ||
100% GUARANTEED PASS
<NEWEST VERSION>
1. The simplest method for accurately measuring piping or tubing prior to
assembly is the _____. - ANSWER ✔ Shoulder to shoulder method
2. The colors of the conductors of a type j thermocouple are typically? -
ANSWER ✔ White and red
3. If a persons heart is out of rhythm due to an electrical shock, the solution is
to __________ - ANSWER ✔ Have a qualified person use emergency
defibrillation eqiupment
4. One mA is a unit of measure for current equal to _______ - ANSWER ✔
.001 amperes
5. How many more times are workers in the construction industry likely to be
electrocuted at work than all the other industries combined ? - ANSWER ✔
Four
6. For injury related calculations and statistics, low voltage is considered to be
anything under 500 volts. T or F - ANSWER ✔ False
,7. The formula for calculating the total resistance in a series circuit with three
resistors is _____.
8. MOD 3 BK 3 - ANSWER ✔ R(Total) = R1 + R2 + R3
9. The total resistance in a series circuit with three resistances of 10Ω, 20Ω,
and 30Ω is _____. - ANSWER ✔ 60 Ohms
10.The formula for calculating the total resistance in a parallel circuit with three
resistors is _____. - ANSWER ✔ R(Total) = 1 / (1/R1 + 1/R2 + 1/R3)
11.The total resistance of the circuit shown in Review Question Figure RQ01 is
_____. - ANSWER ✔ 400 Ohms
Example is just a combination series and parallel circuit problem. Simple
12.In a parallel circuit, the voltage across any branch is equal to the _____. -
ANSWER ✔ Path resistance times total current
13.The total current (I) of the circuit shown in Review Question Figure RQ02 is
_____.
1. Find Total Resistance
Rt = 1 / (1/40 + 1/40)
2. Use total R along with E total voltage (100V) to find total current using
ohms law I = E / R - ANSWER ✔ Rt = 1 / (1/40 + 1/40)
Rt = 1/(1/.025 + 1/.025)
Rt = 1/.05 ————> Rt = 20
Et = 100V.
Find the total current (It)
It = Et / Rt ————> It = 100V / 20 It = 5A
,14.A resistor of 32Ω is in parallel with a resistor of 36Ω, and a 54Ω resistor is
in series with the pair. When 350V is applied to the combination, the total
current (IT) for the circuit is _____. - ANSWER ✔ 4.93 Amps.
(1). Rt = R1 x R2 / R1 + R2
(2). + 54 = Rt
It = Et / Rt (3). It = 350 / Rt
15.A 242Ω resistor is in parallel with a 180Ω resistor, and a 420Ω resistor is in
series with the combination. A current of 22mA flows through the 242Ω
resistor. The current through the 180Ω resistor is _____. - ANSWER ✔ 29.6
mA
16.RELEARN. Couldn't figure out how to set up and solve without being given
the voltage.
17.Two 24Ω resistors (R1 and R2) are in parallel, and a 42Ω resistor (R3) is in
series with the combination. When 78V is applied to the three resistors, the
voltage drop across R3 is _____. - ANSWER ✔ 60.7 V
18.RELEARN. Couldn't figure out how to set up and solve without being given
the voltage.
19.A 19Ω resistor (R1) is in parallel with an 18Ω resistor (R2), and in series
with the two is a 14Ω resistor (R3). When 70V is applied to this
combination, the current through R1 is _____. - ANSWER ✔ RELEARN
20.The number of cycles an alternating electric current undergoes per second is
known as _____. - ANSWER ✔ Frequency
, 21.The peak voltage in a 120VAC circuit is _____. - ANSWER ✔ 170 V
22.In a circuit of pure resistance, the voltage and current are _____. - ANSWER
✔ In phase
23.The opposition to current flow offered by the capacitance of a circuit is
known as _____. - ANSWER ✔ Capacitive resistance
24.True power is equal to _____. - ANSWER ✔ I^2 x R
(I squared times R)
25.A switching regulator maintains the output voltage of a power supply within
a specified range by _____. - ANSWER ✔ Varying the drive current of the
high frequency chopper circuit
26.Linear DC power supplies have the disadvantage of being _____. -
ANSWER ✔ Heavier than switching power supplies
27.What must be taken into account when selecting a power supply? -
ANSWER ✔ The code requirements
28.The value of an analog input signal varies with the change in magnitude of
the _____. - ANSWER ✔ Process
29.The On value of a digital signal is _____. - ANSWER ✔ 1
