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Instrumentation and Sensor Technologies - 2

Total questions: 42

Worksheet time: 1hrs 20mins

Name
Class
Date
1.
What is the definition of the mean?
a)
The average
b)
The middle number
c)
The difference between the highest and lowest numbers
d)
The number that occurs the most
2.
To find the average of a set of numbers, add up all the items and divide by...
a)
2
b)
The minimum
c)
The maximum
d)
The number of items
3.
Find the mean of these numbers:
2, 57, 38, 42, 6
a)
29
b)
38
c)
50
d)
145
4.

What is another word for AVERAGE?

a)

Mode

b)

Median

c)

Mean

d)

Not nice

5.
When finding the median, what do you do if there are two middle numbers?
a)
Add them together and divide by 2
b)
Write them both as the answer
c)
Give up
d)
Pick one
6.
What is the median?
a)
biggest- smallest
b)
average
c)
the middle #
d)
# that happens the most
7.
In order to find the median, the data must be sorted from least to greatest first.
a)
True
b)
False
8.
A data set can have more than one median?
a)
True
b)
False
9.

The median is the __________________ number (after you put them in order).

a)

first

b)

middle

c)

last

d)

one you see most

10.
What is the mean for these numbers?
5,5,5,5
a)
5
b)
20
c)
15
d)
100
11.
1. Find the average (mean) of these numbers.
10, 3, 2, 5
a)
5
b)
4
c)
10
d)
3
12.
What is the mode?
a)
# happening the most
b)
the average
c)
biggest - smallest
d)
the middle #
13.
Find the mean of these numbers:
5,11,2,12,4,2
a)
4.1
b)
6
c)
4.5
d)
4
14.
What is the range?
a)
average
b)
biggest-smallest
c)
the middle #
d)
# happening the most
15.
To find the ______ you put all numbers in order from least to greatest and then take the largest number minus the smallest number.
a)
Mean
b)
Median
c)
Mode
d)
Range
16.
A data set can have more than one mode
a)
True
b)
False
17.
A data set can have more than one median?
a)
True
b)
False
18.
The mode score on the 6th grade math test was 94! Which of these interpretations must be correct?
a)
99 was the highest score on the test.
b)
More students received a 94 than any other score
c)
No student scored below a 50
d)
A score of 91 was slightly below average.
19.

The equation is used to calculate

a)

mean

b)

mode

c)

standard deviation

d)

median

e)

range

20.

The equation is used to calculate

a)

mean

b)

mode

c)

standard deviation

d)

median

e)

range

21.

The middle value of a set of data containing an odd number of values

a)

mean

b)

mode

c)

standard deviation

d)

median

e)

range

22.

The value which occurs most frequently in a set

a)

mean

b)

mode

c)

standard deviation

d)

median

e)

range

23.

Span of values over which your data set occurs 

a)

mean

b)

mode

c)

standard deviation

d)

median

e)

range

24.

The equation is used to calculate

a)

porewater pressure

b)

displacement

c)

tilt

d)

strain

e)

temperature

25.

The equation is used to calculate

a)

porewater pressure

b)

displacement

c)

tilt

d)

strain

e)

temperature

26.

What is shown in figure

a)

Aliasing

b)

Spike Removal

c)

Moving Kernel

d)

Stacking

e)

Signal Detrending

27.

What is shown in figure

a)

Aliasing

b)

Spike Removal

c)

Moving Kernel

d)

Stacking

e)

Signal Detrending

28.

What is shown in figure

a)

Aliasing

b)

Spike Removal

c)

Moving Kernel

d)

Stacking

e)

Signal Detrending

29.

What is shown in figure

a)

Aliasing

b)

Spike Removal

c)

Moving Kernel

d)

Stacking

e)

Signal Detrending

30.

What is shown in figure

a)

Aliasing

b)

Signal with Spikes

c)

Moving Kernel

d)

Stacking

e)

Signal Detrending

31.

Sensor and signal conditioning unit together is called

a)

Transducer

b)

Sensor set

c)

Actuator

d)

Network

32.

What is shown in figure

a)

Wheatstone bridge

b)

Current Transducer

c)

Noise removal circuitry

d)

Thermocouple

e)

Conductivity sensor

33.

What is shown in figure

a)

Tachometer

b)

Speedometer

c)

Thermometer

d)

Pressure Gauge

e)

Strain Gauge

34.
The ability of a metal to allow heat or electricity to pass through it.
a)
conductivity
b)
insulator
c)
mass
d)
density
35.

Which liquid does NOT conduct electricity?

a)

Plain water

b)

Salt Water

c)

Car wash & wax

36.

Which liquid conducts electricity best?

a)

Plain water

b)

Salt water

c)

Vegetable oil

37.

Which is the correct way to wire the experiment?

a)
b)
c)
38.

Where is the mistake in this wiring setup?

a)

A

b)

B

c)

C

d)

D

39.

This sensor is used for burglar alarms

a)

Temperature

b)

Humidity

c)

Movement/Motion

d)

PH

40.

A sensor stores data that it collects

a)

True

b)

False

41.

Sensors which can detect displacement .

a)

LVDT

b)

Potentiometer

c)

Optical Encoder

d)

All of the above

42.

Smallest change which a sensor can detect is

a)

Resolution

b)

Accuracy

c)

Precision

d)

Scale

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