ACCP SUBCOURSE NUMBER MM0462
MODEL 5345A FREQUENCY TIME MEASUREMENT SYSTEM
EXERCISES FOR LESSON 1
1.
An electronic counter input circuit serves to
a.
establish the duration of the counting interval.
b.
amplify and shape the signal to be counted.
c.
establish an accurate time base.
d.
divide the input signal frequency.
2.
Which consideration has the greatest effect on measurement accuracy?
a.
Stability of the DCUs
b.
Proper amplification of the input
c.
Setting of the level control
d.
Stability of the internal oscillator
3.
The function of the gating circuit is to
a.
drive the reset circuits.
b.
establish the counting interval.
c.
shape the input into pulses.
d.
both b and c.
4.
An accurate timing circuit is provided by
a.
a precise gate circuit.
b.
a crystal controlled oscillator.
c.
an accurate frequency multiplier.
d.
the input circuit.
5.
To display the higher frequencies, the frequency of the
a.
basic
oscillator is multiplied.
b.
input
is multiplied.
c.
basic
oscillator is divided.
d.
input
is divided.
6.
To display the lower frequencies, the frequency of the
a.
basic
oscillator is multiplied.
b.
input
is multiplied.
c.
basic
oscillator is divided.
d.
input
is divided.
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