TPC Electrical Measuring Instruments- Questions and
Answers 100% Solved
An accurate wattmeter will always show the true power consumed, which takes into account the
power
losses due to the power factor
Use clips on the ends of voltmeter leads whenever voltage levels are high
When the field coils of an electrodynamometer movement are connected in series with a circuit
and the
movable coil is connected in parallel, the instrument you have is a wattmeter
The purpose of a make-then-break switch is to protect the meter movement from
overcurrent
All meters have one thing in common; they all have an internal ____________ to which
measured values
are compared.
clock standard
Dual-slope integrators are found in certain kinds of ADCs
Which of the following is usually expressed as plus or minus some percentage and expresses a
, meter's maximum and minimum expected error? Accuracy
LCDs make better meter displays than LEDs because of their lower energy requirement
Digital meters are named such because their internal circuits carry signals consisting of 1s
and 0s
VOM Stands for Volt-ohm-milliammeter
In order to generate a display, a digital meter needs a ____________ processor, an ADC, and a
readout control micro
Current and voltage readings taken on the far right of a meter's scale provide greater
accuracy
You will destroy an analog ammeter if you connect it in parallel instead of series
Regardless of whether an oscilloscope is analog or digital, or single- or dual-trace, it can be
either a real-time or a ____________ oscilloscope. sampling *
singular
sinusoidal
Answers 100% Solved
An accurate wattmeter will always show the true power consumed, which takes into account the
power
losses due to the power factor
Use clips on the ends of voltmeter leads whenever voltage levels are high
When the field coils of an electrodynamometer movement are connected in series with a circuit
and the
movable coil is connected in parallel, the instrument you have is a wattmeter
The purpose of a make-then-break switch is to protect the meter movement from
overcurrent
All meters have one thing in common; they all have an internal ____________ to which
measured values
are compared.
clock standard
Dual-slope integrators are found in certain kinds of ADCs
Which of the following is usually expressed as plus or minus some percentage and expresses a
, meter's maximum and minimum expected error? Accuracy
LCDs make better meter displays than LEDs because of their lower energy requirement
Digital meters are named such because their internal circuits carry signals consisting of 1s
and 0s
VOM Stands for Volt-ohm-milliammeter
In order to generate a display, a digital meter needs a ____________ processor, an ADC, and a
readout control micro
Current and voltage readings taken on the far right of a meter's scale provide greater
accuracy
You will destroy an analog ammeter if you connect it in parallel instead of series
Regardless of whether an oscilloscope is analog or digital, or single- or dual-trace, it can be
either a real-time or a ____________ oscilloscope. sampling *
singular
sinusoidal
