Study Flashcards

(106 cards)

1
Q

Who oversees labour relations in BC

A

Bc labour relations board

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2
Q

Which 2 policy violations are high risk

A

Electrical power lines

Excavations over 4 feet

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3
Q

Name 3 types of soil and characteristics

A

Cohesive- clay
Granular- sand and gravel
Organic- top soil

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4
Q

Property of soil that refers to partical size

A

Gradation

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5
Q

What is liquid limit

A

Moisture content when soil fails ribbon test

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6
Q

What is shearing

A

Breaking point- collapse in

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7
Q

Field tests for soils

A

Ribbon test
Shine test
Field test

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8
Q

What is plasticity

A

Minimum moisture where soil will ribbon

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9
Q

What does aggregate processing consist of

A

Screening
Crushing
Washing

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10
Q

3 main sectors of aggregate industry

A

Construction
Industrial
Crushed rock

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11
Q

Difference between loose volume/bank volume

A

Disturbed or undisturbed

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12
Q

How many cubic feet per cubic yard

A

27

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13
Q

4 methods of compaction

A

Vibration
Impact
Kneeding
Pressure

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14
Q

What does a power train do

A

Connects and disconnects power
Provides variable speed
Allows for reverse and forward
Turning ability and power

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15
Q

2 basic types of manual transmissions

A

Synchronized

Unsynchronised

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16
Q

Basic types of transmissions

A

Manual
Auto
Hydrostatic

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17
Q

3 braking systems

A

Air brake
Hydraulic
Engine

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18
Q

Heavy equipment 12v or 24 v

A

24 v

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19
Q

2 flammable products in batteries

A

Hydrogen

Oxygen

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20
Q

What part of bucket do pins attach to

A

The shank

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21
Q

What replaces the clutch in an automatic transmission

A

Torque converter

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22
Q

What can overheat if going uphill in too high gear

A

Torque converter

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23
Q

What are the 7 basic parts in a gas powered four stroke

A
Crank shaft
Cam shaft
Piston
Valves
Crank
Spark plugs
Cylinders
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24
Q

What is a stroke

A

Sweep of cylinder by movement of piston

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25
Difference between 2 stroke and 4 stroke
2 stroke= power during each cycle 4= power every second movement, intake compression, exhaust strike
26
What type of engine requires oil mixed with fuel
2 stroke
27
Compression ratio of gasoline engine
6:1 - 12:1
28
Compression ratio for diesel
14:1-24:1
29
What do glow plugs do
Preheat cylinders for compression of fuel
30
What prevents water and fine particles from getting into fuel system
Dual water separator | Filters
31
What spins a turbo charger
Exhaust gas
32
What PPE should be worn when welding
``` Goggles Shields Tinted glass Insulated gloves Fire resistant clothing ```
33
What might you have to add to the gas on a 2 stroke
Stroke oil
34
What does API stand for
American petroleum industry
35
What is the difference between S and C with engine oils
S- service category or spark | C- compression or commercial
36
What do oils with CI-4 in them provide
A higher level of protection against soot related viscosity loss due to shear in Diesel engines (when oil loses thickness)
37
What are 90w oils used for
Gear cases Final drives Differential with large relatively low speed gears under heavy load
38
What are these greases used for Ep1 Ep2
Ep1- lighter for winter | Ep2- heavier for summer
39
Why is clear diesel more expensive than marked
They charge road tax to clear diesel
40
Is 1-d or 2-d diesel used for winter
1-d (less tendency to gel)
41
How much pressure can a grease gun produce
10,000
42
Do larger or smaller cylinders produce more force
Larger
43
How much psi in hydraulic systems
28-4000 psi
44
What does a directional control valve do
Routes desired flow to actuator
45
What are 2 common types of hydraulic pumps
Gear pump | Piston pump
46
What are gear pumps used for
Lower pressure
47
Where are hydraulic filters typically found on heavy equipment
Resoviour of return point ( to catch contaminants before they enter pump)
48
If you are topping up a machine with hydraulic oil is it going to be filtered before it enters the pump
No
49
Does a hydraulic cylinder make more power if it is getting extended or retracted
Extended
50
What swings upper section of excavator
Rotary manifold
51
Definition of percent expression of slope
Rise/run expressed as percent | Slant or angle of a cut or fill
52
What percent slopes for highways and logging roads
8% highways | 20% logging roads
53
What is slope percent used for
Centreline grades Topography Parking lots Pipe slopes
54
What is a slope ratio used for
Slopes for embankments and cuts
55
What is considered a bulk excavation
Anything wider than 12 feet
56
At what point from cutting edge of an excavation will a fracture point occur which may lead to a collapse
1/2-3/4 of depth
57
All excavations should be carried out in accordance with
Oh&s | Engineer
58
How far back must a clean level area be at the top of an excavation
2 feet - BC | 3 feet - AB
59
Minimum sloping requirement
3/4 -1 or 1:1 | 3 feet horizontal to 4 feet vertical
60
Maximum depth of excavation before it has to be sloped
4 feet
61
Maximum outward angle for shoring uprights
15 degrees
62
Common types of rigging hardware
Hooks, shivs, spreader bars, shackles
63
What is a verticals hitch
Single leg with load suspended vertical
64
Bridal sling
Multiple legs gathering in lift hook
65
What grade of chain is recommended for overhead lifting
Grade 10
66
How many beeps to go ahead
3
67
What prevents the loss of control (pendulum theory) on suspended loads
Tag line
68
ROPS= | FOPS=
``` ROPS= roll over protective structure FOPS= falling object protection structure ```
69
Does call before you dig come to site
No. They asssist | Non profit
70
How long do you have to dig after you call
``` AB= 2 days BC= 3 days ```
71
Minmum distance from power lines
``` BC= 10 feet AB= 21 feet ```
72
RED
Electrical
73
Yellow
Gas oil steam
74
Orange
Communication
75
Blue
Potable water
76
Green
Sewer
77
Pink
Temporary survey
78
White
Proposed excavation
79
Purple
Reclaimed water
80
Arms across
Stop
81
Thimble
Lifting hardware that prevents cable from fraying
82
Eye hole
Lifting hardware
83
Grade of chain for overhead lifting
10
84
How many beeps to stop
1
85
Which is not a hazard category Chemical Sensory Environmental Weather
Weather
86
San or S on stakes stands for
Sanitary
87
Soil piles must be how far from trench
BC 2 ft | AB 3 ft
88
Distance from power lines
BC- 10 feet | AB- 21 feet
89
Torque converter is similar to
A clutch
90
Maintaining fuel system daily includes
Draining sediment and water from both the tank sump drain and filter/separator
91
Serrated edges are found on
Graders
92
Particle size distribution
Gradation
93
Does a 2 stroke produce more or less power than 4 stroke
More
94
Hydraulic system, which valve prevents back flow
Check valve
95
Slope is commonly specified as
A percentage expression of rise over run (vertical to horizontal)
96
Ether is for starting
Diesel engines
97
In hydraulics, which valve routes fluid to the desired actuator
Control valve
98
Swell factor percentage
12
99
Compaction factor percentage
20%
100
Coolant is a mixture of
Water and ethylene glycol
101
On a dozer, what blades are used to move large amounts of material
U-blades
102
Rock breaker attachments are found on
Excavators
103
Fuel filters are installed
Between injection pump and injectors
104
Holes dug to collect water
Sump
105
End of angled blade farthest away
Toe
106
Are blue top stakes set to elevation of finished pavement
No