Free Practice Quiz Question List

4 Measurement and Engineering Data Online Quiz Questions

Use this free practice quiz with 20 questions to review 4 Measurement and Engineering Data, test your knowledge, and prepare for your next test or exam.

20 questions

True or false

1 point

True or false: Exact counts and defined conversion factors do not limit the significant figures in a calculation.

A
True
B
False

Fill in the blank

1 point

A measurement is a numerical estimate expressed as a and a .

Choose one

1 point

Which relationship correctly expresses one newton in SI base units?

A
$1\ \text{N}=1\ \text{kg}\cdot\text{m}/\text{s}$
B
$1\ \text{N}=1\ \text{kg}\cdot\text{m}/\text{s}^2$
C
$1\ \text{N}=1\ \text{kg}\cdot\text{m}^2/\text{s}$
D
$1\ \text{N}=1\ \text{kg}/\text{s}^2$

Written response

1 point

What kind of measurement effect tends to shift readings in one direction, as a consistent calibration offset would?

Choose one

1 point

Which statement correctly distinguishes the SI symbol m from M?

A
m means mega, while M means metre.
B
m and M are interchangeable symbols for metre.
C
m means metre, while M is the SI prefix mega.
D
M means millimetre, while m means metre.

True or false

1 point

True or false: Standard uncertainty, expanded uncertainty, and an interval with a stated confidence level are interchangeable descriptions, so the uncertainty type need not be identified.

A
True
B
False

Written response

1 point

Convert $3.00\ \text{in}$ to millimetres using $1\ \text{in}=25.4\ \text{mm}$ . Enter the numerical value, rounded to three significant figures.

Choose one

1 point

A calculation multiplies measured values $2.34$ and $1.2$ . What result follows the significant-figure convention for multiplication?

A
$2.808$
B
$2.8$
C
$2.81$
D
$3$

Written response

1 point

Add $12.11\ \text{cm}$ and $0.3\ \text{cm}$ , then round the result according to the significant-figure convention for addition. Enter the numerical value.

Choose all

1 point

Select all statements that correctly describe random and systematic effects in measurement.

A
Random effects can cause readings to vary.
B
A consistent calibration offset is a systematic effect that tends to shift readings in one direction.
C
Repeating a measurement automatically reveals or removes systematic error.
D
Repeating measurements can help estimate random variation.

Fill in the blank

1 point

For independent measurements added together, standard uncertainties $u_1$ and $u_2$ are commonly combined as $u_c=$ .

Choose one

1 point

If a converted value is useful to an audience familiar with another unit system, how should it be presented in an engineering report?

A
Report only the converted value, since two unit systems should not appear together.
B
Give the SI value first and place the converted value in parentheses.
C
Give the converted value first and omit the SI value.
D
List both values without indicating which one is the SI value.

Choose all

1 point

Select all information that can help another person interpret and use an engineering measurement result.

A
The quantity, numerical result, and unit.
B
The uncertainty or relevant measurement spread.
C
The instrument and method, including calibration information when relevant.
D
Important conditions, assumptions, and the number of repeated trials.
E
An implied confidence level, even when it is not justified.

Open ended

1 point

Explain why tightly grouped repeated readings do not by themselves establish that a measurement is accurate. Distinguish precision from accuracy, describe what repeating readings can and cannot reveal, and name key information to include when reporting the result.

Choose one

1 point

Which is the SI base unit for electric current?

A
ampere (A)
B
coulomb (C)
C
volt (V)
D
ohm (Ω)

Choose one

1 point

Why can multiplying a measurement by a conversion factor change its unit without changing the quantity?

A
A conversion factor changes both the unit and the quantity.
B
A conversion factor is a ratio equal to one, so it changes the unit without changing the quantity.
C
A conversion factor is an estimate of measurement uncertainty.
D
A conversion factor is used only when the original unit is not an SI unit.

True or false

1 point

Repeating a measurement automatically reveals or removes a consistent calibration offset.

A
True
B
False

Choose one

1 point

Calculate $4.56\ \text{cm}\times1.4\ \text{cm}$ . Using the multiplication significant-figure convention, which result should be reported?

A
$6.38\ \text{cm}^2$
B
$6.384\ \text{cm}^2$
C
$6.4\ \text{cm}^2$
D
$6.40\ \text{cm}^2$

Choose one

1 point

Add $12.46\ \text{cm}+0.3\ \text{cm}$ . Using the addition and subtraction rounding convention, which result should be reported?

A
$12.76\ \text{cm}$
B
$12.8\ \text{cm}$
C
$12.80\ \text{cm}$
D
$13.0\ \text{cm}$

Written response

1 point

A measured speed is $2.4\ \text{m/s}$ , and a measured travel time is $3.00\ \text{s}$ . What distance is calculated from their product? Round using the multiplication significant-figure convention.