ATASA 5th Diagnostic & Specialty Tools
ATASA 5TH Study Guide
Chapter 5 Pages 99-133
Diagnostic & Specialty Tools
87 Points
Please Read The Summary
1. ___________ tools are used to check the performance of a system or a
component. Tools designed for a particular purpose or system are referred
to as ______________ tools.
Diagnostic, Specialty
Husky®, Craftsman®
Snap-on®, Kobalt®
ATASA 5th Diagnostic & Specialty Tools
2. A _____________ gauge, used to check cylinder compression has 10mm,
12mm, 14mm, or 18 mm threads to fit the spark plug hole or the glow plug
hole, in the case of a diesel engine.
Compression
Cylinder Leakage
Kilovolt
ATASA 5th Diagnostic & Specialty Tools
3. A _______________ __________ tester can be used to pinpoint the source
of a compression leak.
Compression
Cylinder Leakage
Kilovolt
ATASA 5th Diagnostic & Specialty Tools
4. Oil ____________ gauges can verify low pressure often due to excessive
engine bearing clearances.
Compression
Vacuum
Pressure
ATASA 5th Diagnostic & Specialty Tools
5. A _______________ amplifies sounds either mechanically or electronically.
Boroscope
Stethoscope
Microscope
ATASA 5th Diagnostic & Specialty Tools
6. Piston ring service tools include _______ __________, ring ____________,
ring ______________, and piston ring groove ____________.
ATASA 5th Diagnostic & Specialty Tools
Ring Ridge Reamers
Compressors,
Expanders,
Cleaners,
7. Dial bore gauges are an alternative to telescoping gauges and micrometers
for use in verifying cylinder _____ & ____ - __ - _______ in an engine block.
Taper, Out-of-Round
ATASA 5th Diagnostic & Specialty Tools
8. A cylinder ______ or _______ ___________ fit with 220 to 280 grit stones
can be used to restore cylinder wall crosshatch.
A __________ _______ is used to oversize an engine cylinder.
Hone
Bone
ATASA 5th Diagnostic & Specialty Tools
Glaze Breaker
Home Maker
Boring Bar
Rigid Hone
9. For servicing the engine valve train, _____ bearing driver sets, ___ - blocks
to support shafts while on the bench, valve ________ & valve ________
cutting equipment, valve _________ repair tools, a variety of valve spring
____________________, and valve spring testers are the specialty tools.
ATASA 5th Diagnostic & Specialty Tools
Cam Bearings, V-Blocks, Face & Seat, Guide, Compressors
10. A torque _________ ________ is needed for tightening torque-to-yield
fasteners like cylinder head bolts. These are one-time use fasteners that
stretch when incrementally tightened.
Angle Gauge
Stress Gauge
Twist Gauge
ATASA 5th Diagnostic & Specialty Tools
11. A _____________________ is a pressurized oil reservoir used to prime an
engine lube system.
Prelubricator
Preignitor
Premature
ATASA 5th Diagnostic & Specialty Tools
12. Cooling system specialty tools include: _______ testers used to find leaks,
refractometers, _________________, & pH testers used to determine
coolant freeze point & acidity.
Pressure, Hydrometers
ATASA 5th Diagnostic & Specialty Tools
13. The computer _____________ ___________ is a necessity if removing a
battery from a vehicle.
Battery Saver
Memory Saver
Station Saver
ATASA 5th Diagnostic & Specialty Tools
14. A 12-volt ___________ can locate voltage sources.
A _______________ light is used specifically on unpowered circuits to
locate opens. (continuity lights have their own power source)
12 Volt Test Light
ATASA 5th Diagnostic & Specialty Tools
Continuity Light
15. A digital __________ (DMM) has the capabilities of measuring resistance,
voltage drop & voltage available when connected in parallel, and amps
when connected in series or inductively.
ATASA 5th Diagnostic & Specialty Tools
NOTE: Ammeters can be connected either in series or with an inductive pickup.
Ammeters…meaning the ammeter function of a DMM
ATASA 5th Diagnostic & Specialty Tools
Ohmmeters are battery powered.
Never connect this meter to a live, powered up circuit!
Ohmmeters…meaning the ohmmeter function of a DMM
ATASA 5th Diagnostic & Specialty Tools
Multimeters may have either digital or analog displays.
DMM’s should have an input impedence of at least 10 megaohms
if they are to be used on automotive computer circuitry.
Note: Analog Bar Graph
ATASA 5th Diagnostic & Specialty Tools
Note: DMM’s can measure RPM, duty cycle (on-time %),
pulse width (on-time mSec), diode voltage drop,
and frequency (hertz or cycles per second).
ATASA 5th Diagnostic & Specialty Tools
16. Lab scopes display voltages in the form of a ________ or ______ on the
vertical axis and time, typically in milliseconds, on the horizontal axis.
ATASA 5th Diagnostic & Specialty Tools
Waveform, Trace
Pattern, Space
Function, Lace
www.picotech.com
ATASA 5th Diagnostic & Specialty Tools
NOTE: A lab scope is handy because it can find momentary electrical
disturbances called glitches, fall-outs or electrical noise
ATASA 5th Diagnostic & Specialty Tools
ATASA 5th Diagnostic & Specialty Tools
17. In an effort to identify circuit glitches, a ___________ multi-meter (GMM)
can be used.
ATASA 5th Diagnostic & Specialty Tools
Grocery
Graphing
Gamma
18. Battery __________________ check state of charge. The VAT is fit with
meters and a carbon pile rheostat used to make battery load, cranking
amps draw, and charging system output tests.
ATASA 5th Diagnostic & Specialty Tools
Hydrometers
Potentiometers
Refractometers
19. Wire cutters, stripping tools, terminal ______________, connector picks,
heat guns, heat sinks, and soldering tools are all necessary for making
proper repairs to faulty wiring in vehicles.
ATASA 5th Diagnostic & Specialty Tools
Crimpers
Crampers
Smooshers
20. Headlight ___________ are used to obtain maximum illumination and the
proper night time view.
ATASA 5th Diagnostic & Specialty Tools
Tamers
Aimers
Reamers
21. A ______ ______ is a microprocessor designed to communicate with the
vehicle’s computers.
ATASA 5th Diagnostic & Specialty Tools
22. Through connection to the DLC, scan tools can read ______, play back
_________ ________ data, read input & output data, perform functional
tests, can troubleshoot & even access TSB’s.
ATASA 5th Diagnostic & Specialty Tools
DLC’s, Frost Frame
DTC’s, Freeze Frame
Data, Movies
23. An engine ______________ is a huge machine capable of performing many
diagnostic tests.
ATASA 5th Diagnostic & Specialty Tools
Analyzer
Computer
Scanner
24. Fuel system tools include __________ gauges, _________ balance testers,
________ lights to check injector pulses, EFI cleaning apparatus, line
disconnect tools, and pinch-off pliers.
ATASA 5th Diagnostic & Specialty Tools
Pressure
Noid
Injector
25.____________ (pressure lower than atmospheric), measured in Hg”
is a good indicator of engine load.
18 - 22 Hg” @ Idle
0- 5 Hg “ @ WOT
Vacuum
ATASA 5th Diagnostic & Specialty Tools
26. A vacuum _________ can apply vacuum to components to verify operation
and check for leaks.
Pump
Gauge
Tee
ATASA 5th Diagnostic & Specialty Tools
28. Vacuum leaks can be pinpointed with _______________ leak detectors or
with smoke machine
