A1 test(TTM)
An example of an operating environment for commercial vehicles includes
The engine it uses
The steepness of a road grade
The number of the steps between transmission gears
The regulations in the region it operates
Which of the following statements best describes engine torque?
The speed range where an engine pulls the heaviest load
A measure of power output at maximum engine speed
The twisting force at the flywheel of an engine
A calculation of engine speed multiplied by cylinder pressure
Which number or letters in the VIN typically indicates the type of engine the vehicle uses?
6 and 7
The last 5
The 4th
The 9th
What are the 3 C's?
Care,cause, and concentration
Concern,cause, and correction
Cause,cost, and correction
Concern,cause, and cost
The lockout tag system is used to indicate that a tool or vehicle is which of the following?
Is in working order
Is dangerous to use or defective
Should be lubricated
Has been recently repaired
Is propane heavier than air?
No
Yes
What should you not do with an air nozzle?
Clean out a drilled hole
Point it at someone else or yourself
Dry brake clean
What is a center punch used for?
To sharpen a drill bit
To use as a hammer
To scribe a peice of metal to make a straight line
To locate a hole/ to stop a drill from wondering
Nominal size of a bolt includes..
Shank diameter, penetration length, and thread pitch
Width, tensile load, and length
Shear strength, pre load, and width
What tap should you use to start a thread hole
Plug
Taper
Bottoming
What can occur when drilling large holes?
More heat
Jamming
Less penetration
How would you get the correct size of tubing?
Width
Length
Area
Outside diameter
How far should the tool rest on a bench grinder be?
3mm
7mm
2mm
5mm
What should you use to find a high pressure hydraulic leak?
Your hand
Pencil
Paper
Someone else hand
Which threads are strongest and most resistant to stripping?
Rolled coarse threads
Machine cut fine threads
Machine cut coarse threads
Rolled fine threads
Safety in the workplace is whose responsibility?
The supervisors and managers
The workers and supervisors
The employer, supervisor, and the worker
The employee and the manager
How much unobstructed space should be around an electrical panel?
1 foot
2 foot
3 foot
4 foot
Which type of light bulb is most hazardous when broken around flammable vapors?
Incandescent
LED
Fluorescent
Solid state
Which type of head will a cap screw use if there is adequate space space for a wrench or socket?
Internal hex head
External torx head
12 point head
Hex head
What feature of a line wrench gives it an advantage that other wrenches do not have?
Greater turning torque
An angled end to reach difficult heads
A curved handle
5 sides at each open end
Which of the following forces acting on a fastener is greatest when it is preloaded?
Tensile load
Shear load
Proof load
Elastic load
What are hammers classified by?
Width of handle
Length of handle
Weight of head and type of material
Length of head and and width
What are sledge hammers classified by?
Weight of head
Length of handle
Type of material
Width of head
How are Robertson screw drivers sized?
Width of head
By colour
Length of handle
What should you do if a chisel becomes mushroomed?
Cut in half
Thrown away
Ground off
What wrench should u use on brake lines?
Tubing of flare nut wrench
Line wrench
Angled wrench
Another name for interlocking slip joint pliers
Vise grips
Standard pliers
Water pump pliers
1224 is what on a blade?
Blade length and number of teeth
Width of blade and number of teeth
Length of handle and weight size
What is a thread gauge?
To sharpen a drill bit
To scribe a peice of metal
Measures pitch of threads
What is a wire feeler gauge used for?
To measure spark plugs
Measure drums
Measure rotors
Measure brake pads
Are fine threaded fasteners stronger then coarse
Yes
No
Do cap screws have nuts?
Yes
No
What is a grade on a bolt
Number of slashes minus 2
Number of slashes plus 2
Number of threads
Pitch of threads
Does a threaded fastener have a head?
Yes
No
Higher the number the greater tensile strength?
True
False
Should you apply teflon tape to first threads?
Yes
No
What type of socket should you use for a 4 square head?
Deep socket
Impact sockets
Driver socket
8 point socket
What does a block on a engine do?
Make it look pretty
Prevent hard starting
Prevents oil from spilling
Filters out smoke
Who should remove a lock out tag?
The person who put it on
Your friend whos working with you
Ur mom
Your boss
What should you do before lifting with a hydraulic jack?
Walk away
Put jack stands underneath
Find center of gravity
Put wheel chocks in
A vehicle is safe to work under after you.....
Cock wheels
Eat lunch
Support load with bridging
Turn off the night switch
Rigging equipment and working strength is found on what?
Metal tag
A white board
Vin number
Under your tool box
Why is a thimble on the end of a rope?
For safety
To prevent heat from getting near it
So it wont be crushed or flattened
What are tag lines used for when lifting a load?
To prevent it from falling
To control load from a safe distance
To show how heavy the object is
Shows how long the object is
Which of the following bearings reduce friction produced by sliding contact?
Ball bearings
Roller bearing
Tapered roller bearing
Plain bushings
Which type of bearing can support a combined load?
Ball bearing
Roller bearing
Tapered roller bearing
Plain bushing
What does C and S stand for when referring to oil types?
C: cactus and S: stain
C: gas S: diesel
C: 15w40 S: 10w30
C: diesel S: gas
Society of ________ _________ establishes the rating for oil viscosities
Sponge bob square pants
Occupational safety
Automotive engineers
Environmental protection
What are some oil additives?
Vodka, tequila, gin and whiskey
Vegetable oil, deep creep and acetone
15w40, 10w30, and 30w
Anti wear agents, reserve alkalinity, and foam suppressors
What should you do if you leave a job unfinished and someone else starts working on it after you?
Leave your tools everywhere for them
Leave precise information on what you were doing
Clean up after yourself
What does 6x19 stand for when talking about rope?
Number of strands and number of wires
The width and the length
The direction there both going
What does the grade indicate on a wire?
The size of wire
The wires breaking strength
How far the wire can stretch
What is a reliable method to seal in oil under pressure?
Compression packings
Brinelling
Metal gasket
What temperature should you not exceed when heating up a bearing?
200c
150c
127c
121c
What tool would u use to measure end play on a wheel bearing?
Micrometer
Ruler
Dial indicator
Stepped feeler gauge
What is brinelling caused from?
Metal getting to hot
High load impact
Metal shards in bearing
What are 2 methods used to adjust bearings? (2 right answers)
Wrench and a hammer
Adjust nut in front of bearing
Pre load and endplay
Measure width
Inner race is the core and the outer race is the cup
True
False
Should you use shop air to dry or spin a bearing?
Yes
No
What are 3 types of anti friction bearings?
Ball, roller, and needle bearings
Conrad, full, and split race bearings
Straight roller, spherical, and taper bearings
Solid and split bushings may have grooves in the bearing surface
True
False
What loads are designed for friction bearings?
Heavy loads
Lighter loads
Angular loads
Radial loads
What is the 1st step before lifting?
Determine mass load
Find center of gravity
Eat lunch
Put bridge blocking down
What do service records contain?
How many parts you used
How many hours you put into a job
Your previous work history
Regular lay definition.
Has the outer strands lain in the opposite direction then the strands themselves
Outer strands and wires of the outer strands laid in the same direction
Viscosity is the resistance to flow
True
False
Lang lay definition
Outer strands laid in the opposite then the strands themselves
Outer strands and wires of the outer strands laid in the same direction
Dot 5 is....
Freezing cold
Warm
Extremely hot
Amount of friction is affected by the type of material
True
False
A standard 0-1 inch outside imperial micrometer shows 3 large divisions, 3 small divisions and 3 on the thimble. What is the measurement?
0.0378
0.372
0.375
0.378
How much will the reading change by on a imperial outside micrometer when the thimble is turned one full revolution?
0.25
0.025
1
0.050
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