NATE CORE ESSENTIALS FINAL EXAMS ACTUAL
QUESTIONS AND ANSWERS SURE A+
✔✔a (Disconnect and lock out power before starting unless testing requires the power
to be on) - ✔✔What is one of the most important safety precautions that you can take
when working on electrical equipment?
a. Disconnect and lock out power before starting unless testing requires the power to be
on
b. Keep one hand in your pocket while working on the power circuit
c. Label all hot wires before starting
d. Wear gloves suitable for high voltages
✔✔a (When current travels through a ground path other than the neutral) - ✔✔When
does a ground fault circuit interrupter open an electric circuit?
a. When current travels through a ground path other than the neutral
b. When the circuit is overloaded
c. When there is a short circuit
d. All of the above
✔✔b (only by the person who installed the locks) - ✔✔Proper lockout/tagout procedures
state that locks placed on a lockout device may be removed ____.
,a. by anyone on the job site
b. only by the person who installed the locks
c. only after all fuses have been replaced
d. only when the equipment is grounded
✔✔c (evaporation) - ✔✔A natural cooling process produced by moisture on the skin
changing to low-pressure steam is called ____.
a. conduction
b. convection
c. evaporation
d. radiation
✔✔a (adding moisture) - ✔✔During the heating season, human comfort can be
enhanced without changing the temperature of the air by ____.
a. adding moisture
b. reducing moisture
c. increasing air filtration
d. increasing air speed
✔✔a (completely closed) - ✔✔During the cooling season, dampers on bypass
humidifiers should be ____.
a. completely closed
b. completely open
c. set at 25%
d. set at 50%
✔✔d (all of the above: liquid, solid, gas) - ✔✔All matter can exist as a ____.
a. liquid
b. solid
c. gas
d. all of the above
✔✔c (potential) - ✔✔Stored energy is called ____ energy.
a. controlled
b. kinetic
c. potential
d. quantum
✔✔c (sensible) - ✔✔Heat that you can feel and measure directly with a thermometer is
called ____ heat.
, a. absolute
b. latent
c. sensible
d. super
✔✔b (latent) - ✔✔The heat energy change associated with a phase (state) change is
called ____ heat.
a. absolute
b. latent
c. sensible
d. super
✔✔d (specific) - ✔✔The amount of heat (Btu) needed to raise the temperate of 1 lb of a
substance 1°F is called the ____ heat of the substance.
a. absolute
b. latent
c. sensible
d. specific
✔✔b (liquid, solid) - ✔✔The latent heat of fusion is the amount of energy required to
change 1 lb of a substance from the ____ phase to the ____ phase without changing its
temperature.
a. liquid, vapor
b. liquid, solid
c. solid, vapor
d. vapor, liquid
✔✔c (144 Btu) - ✔✔At 32°F, 1 lb of ice can be changed to 1 lb of water by adding ____
Btu.
a. 32 Btu
b. 44 Btu
c. 144 Btu
d. 970 Btu
✔✔d (970 Btu) - ✔✔At 212°F, 1 lb of water can be changed to 1 lb of steam by adding
____ Btu.
a. 32 Btu
b. 44 Btu
c. 144 Btu
d. 970 Btu
QUESTIONS AND ANSWERS SURE A+
✔✔a (Disconnect and lock out power before starting unless testing requires the power
to be on) - ✔✔What is one of the most important safety precautions that you can take
when working on electrical equipment?
a. Disconnect and lock out power before starting unless testing requires the power to be
on
b. Keep one hand in your pocket while working on the power circuit
c. Label all hot wires before starting
d. Wear gloves suitable for high voltages
✔✔a (When current travels through a ground path other than the neutral) - ✔✔When
does a ground fault circuit interrupter open an electric circuit?
a. When current travels through a ground path other than the neutral
b. When the circuit is overloaded
c. When there is a short circuit
d. All of the above
✔✔b (only by the person who installed the locks) - ✔✔Proper lockout/tagout procedures
state that locks placed on a lockout device may be removed ____.
,a. by anyone on the job site
b. only by the person who installed the locks
c. only after all fuses have been replaced
d. only when the equipment is grounded
✔✔c (evaporation) - ✔✔A natural cooling process produced by moisture on the skin
changing to low-pressure steam is called ____.
a. conduction
b. convection
c. evaporation
d. radiation
✔✔a (adding moisture) - ✔✔During the heating season, human comfort can be
enhanced without changing the temperature of the air by ____.
a. adding moisture
b. reducing moisture
c. increasing air filtration
d. increasing air speed
✔✔a (completely closed) - ✔✔During the cooling season, dampers on bypass
humidifiers should be ____.
a. completely closed
b. completely open
c. set at 25%
d. set at 50%
✔✔d (all of the above: liquid, solid, gas) - ✔✔All matter can exist as a ____.
a. liquid
b. solid
c. gas
d. all of the above
✔✔c (potential) - ✔✔Stored energy is called ____ energy.
a. controlled
b. kinetic
c. potential
d. quantum
✔✔c (sensible) - ✔✔Heat that you can feel and measure directly with a thermometer is
called ____ heat.
, a. absolute
b. latent
c. sensible
d. super
✔✔b (latent) - ✔✔The heat energy change associated with a phase (state) change is
called ____ heat.
a. absolute
b. latent
c. sensible
d. super
✔✔d (specific) - ✔✔The amount of heat (Btu) needed to raise the temperate of 1 lb of a
substance 1°F is called the ____ heat of the substance.
a. absolute
b. latent
c. sensible
d. specific
✔✔b (liquid, solid) - ✔✔The latent heat of fusion is the amount of energy required to
change 1 lb of a substance from the ____ phase to the ____ phase without changing its
temperature.
a. liquid, vapor
b. liquid, solid
c. solid, vapor
d. vapor, liquid
✔✔c (144 Btu) - ✔✔At 32°F, 1 lb of ice can be changed to 1 lb of water by adding ____
Btu.
a. 32 Btu
b. 44 Btu
c. 144 Btu
d. 970 Btu
✔✔d (970 Btu) - ✔✔At 212°F, 1 lb of water can be changed to 1 lb of steam by adding
____ Btu.
a. 32 Btu
b. 44 Btu
c. 144 Btu
d. 970 Btu
