TPC 104 Flashcards

1
Q

For very precise angle measurements degrees are divided into____ and ____

A

Minutes
Seconds

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2
Q

The force of gravity on an object is its ____. The measurement of how much matter is in an object is its ____.

A

Weight
Mass

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3
Q

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

A

2500 foot pounds

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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 the negative plate to a positive plate, divided by the amount of electrical charge on the particle, is called:

A

Potential difference

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6
Q

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

A

Electrical current

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7
Q

The prefix milli- indicates one

A

Thousandth

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8
Q

The ampere is the SI base unit for all measurements of

A

Current

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9
Q

When should you convert metric measurements to standard US measurements?

A

As rarely as possible

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10
Q

Work is the product of force and ____. It is expressed in ____.

A

Distance
Joules

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11
Q

What is the decimal equivalent of 5/8 of an inch?

A

0.6250 in.

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12
Q

Which tool is used in layout work for scribing circles and transferring dimensions between a scale and the work?

A

Divider

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13
Q

In a clearance fit two parts fit together…

A

With a little room to spare

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14
Q

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

A

Both ends

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15
Q

A balanced dial on a dial indicator is graduated in ____ directions from zero. It is used for ____ -way comparison measurements.

A

Both
Two

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16
Q

If a hole is too large, which ends of a “go, no-go” plug gauge fit into the hole?

A

Both ends

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17
Q

Surface roughness is measured in…

A

Micro inches

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18
Q

During production, the hardness of small parts is often check by means of the highly sensitive ____ hardness tester

A

Vickers

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19
Q

X-ray equipment is used for making ____ inspections of manufactured parts.

A

Internal

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20
Q

The maximum slope at which a pile of loose material will stay without sliding, is called the angle of

21
Q

The area of a parallelogram is measured in

22
Q

Which of the following is the best approximation of the value of pi?

23
Q

On the earths surface, the strength of gravity generally is ____ at low
elevations, and ____ at high elevations. Gravity at the center of earth ____.

A

Strongest
Weakest
Is zero

24
Q

How many board feet of lumber are there in 150 running feet of 2 x 4 studs?

25
Velocity refers to the ratio of change in ____ to the amount of ____.
Displacement Time
26
Speed is the magnitude of ____ without the ____.
Velocity Direction
27
If an object accelerates, there is a change in its ____.
Direction or speed or both
28
An object moves at a constant speed along a curved path. At the point where the path curves most sharply, the object has the
Highest acceleration
29
The force of gravity on an object is called
Weight
30
A moving object has three forces acting on it. The combine effect of all three forces is zero. The moving object will ____ speed and will ____ direction.
Not change Not change
31
Measuring deformation is necessary in order to measure
Force
32
You can calculate the combined effect of several forces by first separating each force into its
Horizontal and vertical parts
33
A temperature at which some physical event occurs is called a ____ temperature
Critical
34
If a metal is heated to higher and higher temperatures, it first glows ____, then ____, and then ____.
Red Orange Yellow
35
What is the freezing temperature of water?
0°C
36
The temperature at which molecular motion stops is called?
Absolute zero
37
Which device measures temperature most quickly?
Optical pyrometer
38
A fluid is a
Liquid or a gas
39
If a solid has a density greater than that of a liquid into which it is placed, the solid will
Sink in the liquid
40
The flow rate of a moving fluid is a measure of the ____ of the fluid that moves past a given point in a given time
Volume
41
When you read a psychrometer, the dewpoint is ____ temperature.
Lower than the wet-bulb
42
An aneroid barometer contains
No liquid
43
What kind of charge does an electron carry?
Negative
44
The number of electrons inside a battery is always
Constant
45
Electrical energy per unit of charge is measured in
Volts
46
Potential difference is the difference in electrical ____ between two places.
Potential energy
47
One joule per second is called one
Watt
48
The instrument that compares the mass of an object to a known mass is called
Balance