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WorksheetsEL1 - Wk05 Warm-Up
Total questions: 15
Worksheet time: 8mins
If a technician reversed the leads of a digital voltmeter on a 12 volt circuit the readout would show:
-12v
0v
6v
-6v
A technician replaces a blown fuse in a dome light circuit and the element in the fuse melts immediately. Technician A says if a dome light keeps blowing fuses to check for a short to ground. Technician B says resistance in this circuit has increased current flow. Who is correct?
Tech A
Tech B
Both
Neither
When a Digital Multimeter (DMM) is used to measure DC voltage and is connected in parallel to the load device, which of the following defines the reading?
a. Amperage reading
b. Voltage drop.
c. Voltage spiked.
d. Pulse width modulation
Ammeters should be connected ...
in parallel
in series
in line
from + to -
Current is measured in
amps
watts
volts
ohms
If three lamps of 2, 6 and 10 ohms, respectively, are connected in series, their total resistance value in ohms is
6
9
12
18
A very dim headlight can be caused by
a bad bulb
a poor ground connection
a crack in the lens
dirt in the headlight
The electrical symbol shown in the figure indicates a :
Battery
Fuse
Resistance
Motor
Which electrical element protects the circuit from excessive current ?
Switch
Resistor
Relay
Fuse
The symbol shown would indicate
Voltage Alternating Current
Voltage Direct Current
Voltage 3 -Phase Alternating Current
Voltage Appreciating Current
An atom with excessive electrons
Negative Ion
Positive Ion
Balanced Ion
Insulator
Which kind of circuit only has one path for electricity to flow?
Series
Parallel
Series and Parallel
Where would you place an ammeter in the circuit?
Green ?
Red ?
