NEIEP 400 Course Test Review Questions and Complete Solutions Graded A+
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Course
Mechanics NEIEP
Institution
Mechanics NEIEP
1. What is true when placing an ammeter into a circuit? Answer: The meter is placed in series with any component.
2. What describes the most useful feature of the clamp-on ammeter? Answer: Does not require that connections be disturbed.
3. To what scale should the ammeter be set to read a curre...
NEIEP 400 Course
Test Review Questions
and Complete
Solutions Graded A+
Denning Muriithi [Date] [Course title]
, NEIEP 400 course test review
1. What is true when placing an ammeter into a circuit? Answer: The meter
is placed in series with any component.
2. What describes the most useful feature of the clamp-on ammeter?
Answer: Does not require that connections be disturbed.
3. To what scale should the ammeter be set to read a current of 2000 ma?
Answer: 10 amp
4. what device is an example of a reactive component that can store
energy for long periods of time causing an electrical hazard even with power
removed?-
Answer: Capacitor
5. What must be done when testing resistance to avoid false readings
caused by parallel circuit paths? Answer: Remove one of the two wires to
the item being tested.
6. A minus sign in front of a reading of the digital voltmeter indicates what?
Answer: -
The positive lead is connected to the negative source.
7. What measurement does the meter in figure 1 indicate? (Meter in picture
reads 0.790 M ohms) Answer: 790 k ohms
8. The AC voltage as read on a digital voltmeter is always indicated as ?
Answer: RMS
9. What is the probe to probe resistance of the meter leads of a digital
meter when they are plugged into the common and 10A jacks? Answer:
Short circuit
10.what is indicated by the 0 reading on the meter in figure 2? (leads are
connected to 120 VAC battery one lead connected to 10A, the other to COM.
Meter is set to A~ function) Answer: The internal fuse is blown and
possible meter damage.
11.what is indicated by a resistance measurement of .250 M ohms on a
digital multimeter? Answer: 250,000 ohms
12.What should the resistance of a motor generator commutator be to
ground with brushes raised? Answer: infinite resistance
13.What procedure could be used to test the current drawn by a DC
hoist machine brake coil? Answer: Measure the voltage across a
precision shunt placed in series with it.
14.What is indicated by the reading on the meter in figure 3? (meter reads
2230 ohms, on ohms setting. leads connected to ohms and COM jacks.
Answer: 2.23 k ohms
15.What is the result of connecting an ammeter to the terminals of a
power supply or other voltage source? Answer: The meter will be
2/6
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