NEW
Font size
WorksheetsTCHS meter cert 525F
Total questions: 36
Worksheet time: 18mins
What does DMM stand for?
Meter
What does the symbol in the top right corner mean?
diode
Capacitor
DC
AC
A setting on a DMM to display the maximum and minimum readings.
High resistance
Min/max setting
Short to power
Probing technique
A test instrument with a digital display for measuring votage, resistance, and current
High resistance
min/max setting
Oscilloscope
Digital volt-ohmmeter (DVOM)
A digital volt-ohmmeter is used to measure _____
voltage
amperage
resistance
all of the above
A digital volt-ohmmeter for three-phase fixed equipment and single-phase commercial lighting would have a _____ rating
CAT I
CAT II
CAT III
CAT IV
The red lead for the DMM is labeled with the _____ symbol
+
V/Ω
-
±
5208 MV is the same as 5208 millivolts. It could also be called 52.08 volts
true
false
To accurately measure the resistance of a component, you should remove or isolate the component from the circuit
true
false
A DMM reading of OL means out of limit and indicates the voltage being read is higher than the maximum allowed for the range.
true
false
How should you connect an Ammeter?
In Parallel
In Series
The meter below is connected to read:
Voltage
Resistance
Current
AC Voltage
What is being measured?
DC Volts
AC Volts
AC mili Volts
amps
What is wrong with this meter set up?
Wrong voltage range
Lead port connection and rotary dial do not match
Meter battery low
Blown fuse
What type of device is being tested here?
continuity
resistance
diode
voltage drop
What function is being used or measured here?
ohms
volts
ohms or continuity
amperage
DC mA is being measured according to the dial. What is incorrect?
range
rotary dial does not match lead conncections
meter category
battery weak
What is being measured here? How do you tell?
amps - rotary dial
a/c amps - rotary dial
d/c mili amps - display - dial - leads
volts
How do you go from d/c to a/c mili volts?
dial selector
a/c d/c function button
dial selector and function button
none of these
Look at the screen what function button was pushed?
HzDuty
REC
AC/DC
RANGE
What does MIN mean on the top of the screen?
one reading per minute
minimum current allowed
minimum voltage measured in a sample
minimum resistance in leads
What does the percent sign mean, and which function button brings it up?
battery life, REL
amount of wattage, RANGE
duty cycle, HzDUTY
mim max, REC
What doe Hz mean? Which function button is used?
Hertz is how many cycles the current switches from positive to negative in a period of time. HzDUTY button.
Hertz is a car company. Easy button.
Hertz is positive or negative. REL button.
none of these
Pushing the range button will move the ________________.
voltage
decimal point
amps
ohms
REC button does what?
Tells minimum and maximum readings when a signal is changing too rapidly to tell what they are. Discuss why this would be a good feature.
records your testing session
records voices around the meter
records how much battery life is left
CAP measures what type of device? What unit does it measure in?
volts. amps.
caps is another word for current. amps.
capacitors. farads.
none of these
What's a henway?
ABOUT TWO POUNDS!!!!!!!
A form of hertz
infinite
none of these
