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Nate Core Exam – Questions & Detailed Answers
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Nate Core Exam – Questions & Detailed Answers
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Nate Core Exam – Questions & Detailed AnswersThe following expresses the difference between a feature and a benefit:
✔️Ans - -A feature is a special characteristic of a product
-A benefit is the value the customer receives from using the feature.
The temperature most often used by customers when discussing human
comfort is: ✔️Ans - -A dry bulb reading.
A dictionary defines an honest person as: ✔️Ans - - One who is free from
fraud or deception, credible, and is marked with integrity. With this definition
in mind an honest person is fair in their dealings with other people.
The unit of electrical pressure is the: ✔️Ans - Volt
Each leg of line voltage only is typically represented by the: ✔️Ans - Two
lines on the side of a ladder diagram.
Humidifiers are used with heating systems to raise: ✔️Ans - Relative
humidity and increase customer comfort.
The most important point made by the following,
(There are many factors that contribute to comfort in a home or building.
Temperature, humidity, and cleanliness of the air are just a few examples of
these factors): ✔️Ans - Is comfort requires more than temperature control.
Care should be taken before sawing basement walls that are part of the
original construction of a home because these walls are typically: ✔️Ans -
Load bearing.
Refrigerant vapors in high concentrations should not be inhaled sense they:
✔️Ans - May cause heart irregularities or unconsciousness.
The damper used with a bypass humidifier must be open in what season:
✔️Ans - Winter
, Capillary tubing should only be cut to length using a: ✔️Ans - Triangular or
knife-edge file.
A voltmeter is connected for taking voltage readings by connecting the
voltmeter in ______ with the voltage to be measured: ✔️Ans - Parallel
motor can have two, four, or more poles. What happens with having fewer
number of poles: ✔️Ans - The motor turns FASTER.
The following is true of a tapped multi-speed motor driving a supply blower:
✔️Ans - Changing the connected tap changes the CFM even under no blower
load.
The following is an example of a wet bulb thermometer: ✔️Ans - A
conventional thermometer with a moistened cloth wick covering its sensor.
Electrical current is measured in: ✔️Ans - AMPERES
According to health and safety regulations, when climbing up or down a
ladder the worker must: ✔️Ans - Always face the ladder with three points
of contact.
The following instructions describe what?
1. Insert red test lead plug into red common jack on instrument
2. Insert black test lead plug into black MV jack on instrument
3. Connect the test probes across the circuit to be measured
4.Read millivolt on the 0-50 scale ✔️Ans - The following describes a basic
unwritten instruction that is not included but must always be understood and
followed by the technician to be certain the instrument you are using can be
used with these instructions.
According to Ohms Law, when the voltage to an electric heating element is
increased by 10%: ✔️Ans - The current through the element increases by
10%.
Why should Hacksaws never be used to cut copper tubing: ✔️Ans -
Because saw chips can remain inside the tubing.
What kind of process is Combustion: ✔️Ans - Chemical
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