Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Level 2 plumbing > Plumbing science > Flashcards

Plumbing science Flashcards

You may prefer our related Brainscape-certified flashcards:
Certified Sommelier Exam (CMS 2) flashcards
1
Q

what is hdpe?

A

High density polythelene

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Tensile strength

A

how well a material reacts to being pulled + stretched

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Compressive strength

A

the maximum stress a material can sustain whilst being crushed.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Shear Strength

A

the ability to withstand stress caused by a pair of opposing forces acting along a parallel line through a material

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Ductility

A

A mechanical property that describes by how much a solid material can be pulled, pushed, stretched and elongated

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Malleability

A

For a material to be deformed by compressive strength without fracturing.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Charles law

A

As temperature goes up so too will the pressure and therefore volume. (directly proportional)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Capillary attraction

A

the process where any fluid can be drawn upwards through small gaps against the action of gravity.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Boyle Law

A

If the pressure is doubled the volume of gas is halved

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Sensible Heat

A

Is any heat that causes a change in temperature without a change in state

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Latent Heat

A

A change of state without a change in temperature

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Velocity

A

the speed of an object in a particular direction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Acceleration

A

A measure of how quickly the velocity of something is changing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Acceleration due to gravity

A

this is the rate of change of velocity of an object due to the gravitational pull on the earth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Force

A

An influence apon an object, which if acting alone will cause the motion of an object to change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Pressure

A

The application of continuous force by one body on another that is touching compressing

18
Q

Flow rate

A

An Amount of fluid that flows through a pipe or tube over a given time.

19
Q

Dynamic pressure- “working pressure”

A

Presents of water while in motion

20
Q

Atmospheric pressure

A

The amount of force or pressure exerted by the atmosphere on the earth and the objects located on it. Atm decreases with height

21
Q

The Bernoulli effect

A

If a pipe is reduced in size then an increase in the speed of the fluid occurs simultaneously with a decrease in the pressure or a decrease in the fluids potential energy

22
Q

Voltage

A

(potential difference) is the driving force that pushes current around, volts, v

22
Q

Current

A

is the rate of flow of charge around a circuit (current will flow through a component if there is a voltage across a component, ampere)

23
Q

Direct current

A

Always flows in the same direction, electrons flow from negative pole (-) towards the positive pole (+)

23
Q

Resistance

A

Anything in the circuit which slows the flow down, Ohms

24
Q

Series circuit

A

A circuit where there is only one path from the source through all the loads back to the source

24
Q

Alternate current

A

Does not travel in a constant direction. In fact it reverses its direction of travel constantly and uniformly throughout the circuit 50 times a second.

25
Q

Conduction

A

Occurs when heat travels through a substance therefore heat being transferred from one molecule to another

25
Q

Parallel Circuit

A

A parallel circuit is one that has at least two independent paths in the circuit

26
Q

Convection

A

Is heat transfer through a fluid substance, such as water or air. (convection occurs because heated fluids (due to their lower density rise and cooled fluids fall)

27
Q

Water

A

Maximum density of 1000kg at 4 Celsius (either raised or lowered density decreases, “Anomalous expansion”)

28
Q

Power, Potential difference and Current (triangle)

A

Power = Watts
Potential difference = Volts
Current = Ampere

29
Q

Potential difference, Current and Resistance

A

Potential difference = Volts
Current = Amperes
Resistance = Ohms

30
Q

Force, pressure and area

A

Pressure = Force( divide ) Area

Pressure = N/M2 or Pascal (Pa)
Force= Newtons
Area= M2

31
Q

What does PUWER cover?

A

The use of power tools and electrical equipment

31
Q

What is HASAWA?

A

Heath and Safety at Work Act 1974

32
Q

What is PUWER?

A

Provision and Use of Work Equipment Regulation 1998

33
Q

What is PPE?

A

Personal Protective Equipment

34
Q

What must an employer have if they have 5 or more employees?

A

A written health and safety policy

35
Q

Does HASAWA just cover people at work?

A

No, It covers anyone that may be effected by work activities i.e. members of the public

36
Q
A

Level 2 plumbing (2 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions