CDC 3E151: VOLUME 3. HVAC/R FUNDAMENTALS EXAM
QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS
VERIFIED LATEST UPDATE
(401) What relationship between magnetic
field and Relative motion
between the two conductors is required to
generate voltage
mechanically?
(401) Nickel and chromium alloys are used in heater make it
possible to operate the elements at high temperatures without
melting elements because they
,(401) What effect does the length of a
wire have on the More
pressure will be needed amount of
pressure needed to force the electrons to
the
load device?
(401) Resistance should not be considered a
bad thing even conductors
offer resistance to flow because
(401) All forms of opposition
to current flow are
ohms measured in
(401) How is direct current produced? By a battery or a thermocouple
(401) The sine wave gets its name because
the alternator rotor angle and
the peak voltage output voltage at any one
, point on the wave is the
product of the sine of the
(401) What can you do to greatly increase
the inductance Add a core of
magnetic material of a coil?
(401) Current lags the voltage in a purely
inductive circuit opposition by
inductive reactance because of the
(402) When working with
electrical equipment, how
live should you treat all
electrical circuits as
(402) How can you prevent anyone from accidentally Lock
the breaker in the OFF position and tag it to indicate that the system is
being closing the breaker to a circuit that is under repair?
repaired
(403) If using an aluminum-
QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS
VERIFIED LATEST UPDATE
(401) What relationship between magnetic
field and Relative motion
between the two conductors is required to
generate voltage
mechanically?
(401) Nickel and chromium alloys are used in heater make it
possible to operate the elements at high temperatures without
melting elements because they
,(401) What effect does the length of a
wire have on the More
pressure will be needed amount of
pressure needed to force the electrons to
the
load device?
(401) Resistance should not be considered a
bad thing even conductors
offer resistance to flow because
(401) All forms of opposition
to current flow are
ohms measured in
(401) How is direct current produced? By a battery or a thermocouple
(401) The sine wave gets its name because
the alternator rotor angle and
the peak voltage output voltage at any one
, point on the wave is the
product of the sine of the
(401) What can you do to greatly increase
the inductance Add a core of
magnetic material of a coil?
(401) Current lags the voltage in a purely
inductive circuit opposition by
inductive reactance because of the
(402) When working with
electrical equipment, how
live should you treat all
electrical circuits as
(402) How can you prevent anyone from accidentally Lock
the breaker in the OFF position and tag it to indicate that the system is
being closing the breaker to a circuit that is under repair?
repaired
(403) If using an aluminum-
