Measure Flashcards

(50 cards)

1
Q

For very precise angle measurements, degrees are divided into _____ and ______.

A

Minutes and seconds

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2
Q

The force of gravity on an object is its _____. The measure of how much matter is in an object is its _______.

A

weight, mass

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3
Q

If a force of 250lbs acts on a an object and moves it 10feet, how much work has been done?

A

2500ft lbs (W=FxD)

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4
Q

The rate at which work is done is called _______. It is measured in __________.

A

Power, foot-pounds per second

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5
Q

The amount of work a particle can do in going from a negative plate to a positive plate, divided by the amount of electrical (?)

A

Potential difference

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6
Q

What kind of charge does an electron carry?

A

Negative

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7
Q

The number of electrons inside a battery is always

A

Constant

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8
Q

Electrical energy per unit of charge is measured in

A

VOLTS

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9
Q

Potential difference is the difference in electrical _______ between two plates.
- Charge
- Current
- Potential Energy
- Resistance

A

Potential energy

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10
Q

One joule per second is called one
- Amp
- Ohm
- Volt
- Watt

A

Watt

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11
Q

SI base units include length, mass, time, temperature, and ______.

A

Electric current

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12
Q

The prefix “milli” indicates one…

A

Thousandth

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13
Q

The ampere is the SI base unit for measurements of

A

current

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14
Q

When should you convert metric measurements to standard US measurements?

A

As rarely as possible

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15
Q

Work is the product of force and _________. It is expressed in ________.

A

Distance; Joules

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16
Q

What is the decimal equivalent to 5/8”?

A

0.6250

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17
Q

In a clearance fit, two parts fit together

A

With a little room to spare

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18
Q

Which tool is used in layout work for scribing circles and transferring dimensions between a scale and the work?
- divider
- micrometer
- scriber
- vernier

A

Divider

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19
Q

What is the reading on the vernier scale below?

A

3.059

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20
Q

A vernier scale indicates zero when _______ align with marks on the main scale

A

Both ends

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21
Q

A balanced dial on a dial indicator is graduated in ______ direction(s) from zero. It is used for _______-way comp(?)

22
Q

If the hole is too large, which end(s) of a “go, no-go” plug gauge will fit into the hole?

23
Q

Surface roughness is measured in
- Centimeters
- microinches
- millimeters
- nanoinches

24
Q

During production, the harness of small parts is often checked by means of the highly sensitive _________ hardness test.

25
X-ray equipment is used for making ________ inspections of manufactured parts.
Internal
26
The maximum slope at which a pile of loose material will stay without sliding is called the angle of - readjustment - recline - repose - rest
Repose
27
The area of a parallelogram is measured in?
Ft^2
28
Which of the following is the best approximation of the value of pi?
3.14159
29
On earth's surface, the strength of gravity generally is _________ at low elevations, and ________ at high elevations. At the center of the earth it ______.
Strongest, weakest, is zero
30
How many board feet of lumber are there in 150 running feet of 2 x 4 inch studs? - 18.75 - 50 - 100 - 150
100
31
Velocity refers to the ratio of change in _______ to the amount of ______.
Displacement; time
32
Speed is the magnitude of _______ without the ________.
Velocity; Direction
33
If an object accelerates, there is a change in its ____________.
Direction or speed or both
34
An object moves at a constant speed along a curved path. At the point where the path curves most sharply, the object has its _____________.
Highest acceleration
35
The displayed graph shows that after 2 seconds the _______ of the object is _______.
Acceleration; zero
36
The force of gravity on an object is called:
weight
37
A moving object has 3 forces on it. The combined effect of all three forces is zero. The moving object will _____ speed and will _________ direction.
Not change; Not change
38
Measuring deformation is necessary in order to measure - acceleration - displacement - force - mass
Acceleration
39
The instrument that compares the mass of an object to a known mass is called a
Balance
40
You can calculate the combined effect of several forces by first separating each force into its - horizontal and vertical parts - left and right parts - magnitude and direction - positive and negative parts
Horizontal and vertical parts
41
A temperature at which some physical event occurs is called a ______ temperature. - Critical - Crucial - Key - Physical
Critical
42
If a metal is heated to higher and higher temperatures, it first glows _____, then ______, then ______.
Red, orange, yellow
43
What is the freezing temperature of water?
0* C
44
The temperature at which molecular motion stops is called:
Absolute zero
45
Which device measures temperature most quickly? - Bourdon gauge - Mercury thermometer - Optical pyrometer - Thermocouple
Optical Pyrometer
46
A fluid is a:
Liquid or a Gas
47
If a solid has a density greater than that of a liquid into which it is placed, the solid will
Sink in the liquid
48
The flow rate of a moving fluid is a measure of the ________ of the fluid that moves past a given point during a given time.
Volume
49
When you read a psychrometer, the dew point is ________ temperature(s). - the dry-bulb - Between the dry-bulb and web-bulb - The wet-bulb - Lower than the wet-bulb
Lower than the wet-bulb
50
An aneroid barometer contains: - a perfect vacuum - mercury - no air - no liquid
No liquid