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Question 1

What is the primary purpose of a protective structure?

Answer 1

to keep the operator safe during normal operation

Question 2

what is the secondary purpose of a protective structure?

Answer 2

to protect the machine from severe damage during operation

Question 3

what does FOPS provide?

Answer 3

amount of protection from objects that fall above the machine

Question 4

what does ROPS provide?

Answer 4

protect operator from injury or death if machine topples over

Question 5

What can’t ROPS help?

Answer 5

an operator without a seatbelt

Question 6

What helps provide operator max protection from falling objects?

Answer 6

having the canopy extending almost the full length of the machine

Question 7

Why is the fops and drops mounted near the corners of the machine?

Answer 7

to provide the operators max protection in case of a roll over

Question 8

What must pops and fops standards meet?

Answer 8

SAE specifications

Question 9

How must the protective structures direct impact forces?

Answer 9

transmit impact forces through the structural members to the main frame of the machine

Question 10

When attaching any accessory to a protective structure, what must be remembered?

Answer 10

ensure structural integrity of structure is not affected

Question 11

who should you consult when repairing a badly damaged protective structure?

Answer 11

the rops/fops manufacturer and a professional engineer

Question 12

what is the dry chemical used for fighting fires?

Answer 12

monoammnium phosphate

Question 13

what class of fire does dry chemical fight?

Answer 13

A,B,C

Question 14

what is the liquid chemical for fighting fires?

Answer 14

aqueous film-forming foam (AFFF)

Question 15

what class of fire does liquid chemical fight?

Answer 15

A,B

Question 16

What are the two types of sensors used in fire suppression?

Answer 16

linear detection wire and spot sensors

Question 17

What protects the fire suppression system from accidental actuation?

Answer 17

a safety pin

Question 18

What should workers be aware of when working on equipment with fire suppression system?

Answer 18

chemical agents, dispersant gases, system pressure

Question 19

How do you disable a fire suppression system?

Answer 19

place seals on the actuator pins and remove fire system ecm battery/fuse circuit breaker

Question 20

how do both chemicals extinguish the fires?

Answer 20

with a smothering action

Question 21

what dispersant gases are used?

Answer 21

nitrogen and carbon dioxide (only in warmer climates)

Question 22

How often should you inspect actuators, gas, chemical cylinders on a fire supression unit?

Answer 22

every 6 months

Question 23

how can you tell if a fire suppression cylinder and its contents are still charged?

Answer 23

weigh the cylinder and compare to spec

Question 24

why does an inspector fluff the dry chemical agent?

Answer 24

ensures all chemicals are discharged when system is activated. prevents chemicals from settling at bottom of cylinder

Question 25

where are ground engaging tools found?

Answer 25

on crawler tractors, scrapers, graders, loaders, excavators, shovels

Question 26

What is backblading?

Answer 26

leaving the blade on the ground while going in reverse

Question 27

why is backblading not recommended?

Answer 27

accelerates wear on fasteners and the backside of the blade has little protection

Question 28

how is the dozer blade mounted?

Answer 28

on the C-frame, which mounts to the track frame by a trunnion

Question 29

Purpose of the trunnion on a dozer?

Answer 29

allows C-frame to pivot up and down while transmitting impact forces through mounting assembly to track frame

Question 30

what are the two positions for a dozer blade?

Answer 30

carry and breakout

Question 31

what is a float position on a dozer?

Answer 31

blade moves smoothly over the ground, neither digging soil or rising above the surface

Question 32

what ground conditions make float not suitable to use?

Answer 32

on soft ground

Question 33

what are rippers used for?

Answer 33

breaking through hard ground and tear long trenches

Question 34

what do the cutting edges attach to on a scraper?

Answer 34

the bowl

Question 35

What position is the apron in when the bowl is being filled?

Answer 35

the raised position

Question 36

what does a curved ejector do in the bowl?

Answer 36

causes the dirt entering to curl onto itself

Question 37

what does the elevator do on a scraper?

Answer 37

evenly load material onto the ground surface, dislodges trapped dirt

Question 38

what is sideshifting the blade during grader operation?

Answer 38

move material located left or right of the grader track as the machine moves across site

Question 39

what is the grader blade called?

Answer 39

moldboard

Question 40

what is a scarfier?

Answer 40

a small ripper used to break up the top layer of the ground

Question 41

when a grader is working on ice, what blade should they use?

Answer 41

a scarifying cutting edge

Question 42

what is a v-plow?

Answer 42

attachment allowing operator to move a large amount of snow

Question 43

on a grader, what side is the snow wing mounted to?

Answer 43

the ditch side