Hand Tools - Wrenches Overview
47 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the most used hand tool by service technicians?

Wrenches

What type of steel are most wrenches constructed of?

Forged alloy steel, usually chrome-vanadium steel

What is the purpose of an open-end wrench?

To loosen or tighten bolts or nuts that do not require a lot of torque

A box-end wrench is angled at 15 degrees to allow it to clear nearby objects.

<p>True</p> Signup and view all the answers

What is the common name for a wrench that has an open end at one end and a box end at the other?

<p>Combination wrench</p> Signup and view all the answers

When is an adjustable wrench typically used?

<p>When the exact size wrench is not available or when a large nut needs to be rotated but not tightened</p> Signup and view all the answers

What are other names for line wrenches?

<p>Flare-nut wrenches, fitting wrenches, or tube-nut wrenches</p> Signup and view all the answers

What is a socket used for?

<p>It fits over the fastener and grips the points and/or flats of the bolt or nut</p> Signup and view all the answers

What are the standard automotive drive sizes for sockets?

<p>1/4-inch, 3/8-inch, and 1/2-inch</p> Signup and view all the answers

What happens if a 12-point socket is used with excessive force?

<p>All of the above</p> Signup and view all the answers

What is the purpose of a crowfoot socket?

<p>They are designed to reach fasteners using a ratchet or breaker bar with an extension</p> Signup and view all the answers

What are the two basic types of torque wrenches?

<p>Clicker type and beam type</p> Signup and view all the answers

What happens when a torque wrench reaches the specified torque?

<p>A clicker-type wrench makes a 'click' sound to signal the desired torque is reached</p> Signup and view all the answers

How do beam type wrenches indicate the pre-set torque?

<p>They have a calibrated beam that deflects in proportion to the applied torque</p> Signup and view all the answers

How frequently should torque wrenches be checked and adjusted?

<p>At least every year, and more often if possible</p> Signup and view all the answers

Using a torque wrench eliminates the need for a breaker bar or a ratchet?

<p>False</p> Signup and view all the answers

Explain the safe use of sockets with a ratchet.

<p>Always use the proper size socket that fits the bolt or nut securely</p> Signup and view all the answers

Sockets and ratchets should be cleaned after use for optimal performance.

<p>True</p> Signup and view all the answers

What is the most common type of screwdriver?

<p>Flat tip or straight blade screwdriver</p> Signup and view all the answers

What is the main consideration when using a flat tip screwdriver?

<p>Make sure the blade width matches the slot width in the fastener</p> Signup and view all the answers

What tool can be used for fasteners with limited room?

<p>Stubby screwdrivers</p> Signup and view all the answers

Describe the purpose of an offset screwdriver.

<p>It is bent at the ends and used similar to a wrench</p> Signup and view all the answers

When is an impact screwdriver used?

<p>To break loose or tighten a screw that is stuck or very tight</p> Signup and view all the answers

Hammers and mallets are used to force objects together or apart.

<p>True</p> Signup and view all the answers

What distinguishes the different types of hammers?

<p>The shape of the back part of the hammer head, called the peen</p> Signup and view all the answers

What is the purpose of a mallet?

<p>To deliver force to an object without harming the surface</p> Signup and view all the answers

What is inside a dead-blow hammer?

<p>Lead shot is encased in a metal housing</p> Signup and view all the answers

What are pliers used for?

<p>Holding, twisting, bending and cutting objects</p> Signup and view all the answers

What is the purpose of a slip-joint pliers?

<p>To grip objects with two different settings</p> Signup and view all the answers

What is the purpose of multigroove adjustable pliers?

<p>To grip larger objects</p> Signup and view all the answers

What are linesman's pliers used for?

<p>Various automotive service jobs including holding, cutting and gripping objects</p> Signup and view all the answers

What are the purposes of diagonal pliers?

<p>They are designed for cutting only</p> Signup and view all the answers

What is the purpose of needle-nose pliers?

<p>To grip small objects or objects in tight locations</p> Signup and view all the answers

What is the purpose of locking pliers?

<p>To lock objects into place and prevent them from moving</p> Signup and view all the answers

What are snap ring pliers used for?

<p>To remove and install snap rings</p> Signup and view all the answers

What is the purpose of tin snips?

<p>To make straight cuts in a variety of materials</p> Signup and view all the answers

What is a utility knife used for?

<p>To cut various materials like carpet, plastic, wood, and paper products</p> Signup and view all the answers

What is a punch used for?

<p>To drive a pin out that is used to retain two components</p> Signup and view all the answers

What is the purpose of a remover?

<p>To remove damaged fasteners</p> Signup and view all the answers

What can be used to remove a damaged bolt head or nut?

<p>A stud remover or a nut splitter</p> Signup and view all the answers

What are bolt extractors often called?

<p>Easy outs</p> Signup and view all the answers

What can be used to make loosening a plug or bolt easier?

<p>Heating the fastener with a torch and applying paraffin wax or a candle</p> Signup and view all the answers

Why is it important to assemble tools properly?

<p>To minimize chances of rust or corrosion</p> Signup and view all the answers

What is the purpose of a seal puller?

<p>To properly remove grease seals</p> Signup and view all the answers

What is a test light used for?

<p>To test for electricity</p> Signup and view all the answers

What is the purpose of a soldering gun or soldering iron?

<p>To make electrical repairs by joining wires or components</p> Signup and view all the answers

What is the purpose of a binder clip?

<p>To help keep fender covers in place</p> Signup and view all the answers

Study Notes

Hand Tools - Objectives

  • Students will be able to identify the best tool for a particular job
  • Students will be able to discuss safe use of hand tools
  • Students will be able to differentiate between brand names and proper names for tools
  • Students will be able to explain how to maintain hand tools

Wrenches

  • Wrenches are the most commonly used tool by mechanics.
  • Most wrenches are made of forged alloy steel, often chrome-vanadium steel.
  • Open-end wrenches: used to loosen or tighten bolts/nuts needing less torque.
  • Open-end wrenches have different sizes at each end.
  • Box-end wrenches: placed over the top of the fastener, gripping its points.
  • Box-end wrenches are angled 15 degrees to facilitate bypassing objects.
  • Box-end wrenches have different sizes at each end, often sold as "combination wrenches"
  • Combination wrenches contain both an open-end and a box-end of the same size.
  • Adjustable wrenches: used when a precise size wrench isn't available or for large fasteners needing rotation but not tightening.
  • Adjustable wrenches common sizes are 8", 10", and 12".
  • Line wrenches: also known as flare-nut wrenches or fitting wrenches, used to grip nuts on fuel and refrigerant lines.

Ratchets, Sockets, and Extensions

  • A socket grips a fastener's points or flats.
  • Sockets are rotated via a ratchet or breaker bar.
  • Ratchets create a "ratcheting" noise when rotated in a direction opposite of tightening/loosening; a knob controls direction change.
  • Breaker bars (flex handles) have a longer handle than a ratchet, meaning higher torque can be applied.
  • Socket drive sizes: common sizes are 1/4", 3/8", and 1/2" for automotive use.
  • Point types: 6-point sockets grip fasteners on all sides; 12-point sockets can round off fasteners under high force.
  • Crowfoot sockets are open-ended or line wrench-style sockets allowing access to fasteners challenging to reach via conventional tools.
  • Torque wrenches apply a controlled force to fasteners.
    • Clicker type: has a clicking mechanism signifying maximum torque reached.
    • Beam type: displays torque via a beam's deflection.

Screwdrivers

  • Many fasteners are tightened/loosened with screwdrivers.
  • Flat-tipped (straight blade): common type, width of blade matching slot in the fastener.
  • Phillips (cross-head): another commonly used type.
  • Stubby screwdrivers: shorter blades and handles for limited access.
  • Offset screwdrivers: bent at the ends, like wrenches, to access fasteners with constrained space.
  • Impact screwdrivers: need a hammer to deliver impact force, used when standard screwdrivers fail to loosen or tighten fasteners.

Hammers and Mallets

  • Hammers/mallets are used to force objects together or apart.
  • Hammer type is determined by the shape of the hammer's head.
  • Ballpeen hammer's head has a spherical peen.
  • Mallets have a broad striking surface to prevent damaging the object being worked on.
  • Rubber mallets: deliver force without harming the surface.
  • Dead blow hammers: feature a metal housing filled with small lead shot to reduce vibrations and increase efficiency.

Pliers

  • Pliers are used for holding objects, twisting, bending, and cutting.
  • Slip-joint pliers: adjustability.
  • Multigroove adjustable pliers (or Channel Locks) are used for gripping larger components.
  • Linesman's pliers: versatile tool for gripping, cutting (including softer wire); various specialized features (i.e., flat grip).
  • Diagonal-cut pliers: designed just for cutting.
  • Needle-nose pliers: long pointed jaws fit into narrow crevices.
  • Locking pliers (or Vise Grips): adjustable and lockable.
  • Snap-ring pliers: remove and install snap rings.

Files

  • Files smooth metal via their row of diagonal teeth.
  • Files come in various shapes and sizes.
  • Files require a handle for safe use.

Cutters

  • Snips (tin snips): straight cuts in metal, aluminum, or fabric.
  • Utility knives: use replaceable blades for cutting various materials.

Punches and Chisels

  • Punches: small-diameter steel rods with a smaller diameter end for removing pins.
  • Chisels: straight sharp cutting ends for cutting off rivets/separating assembly pieces.
  • Safety caution: Always wear eye protection when using punches/chisels, per warning labels.
  • Chisel sharpening: grind or file the mushroom material from the end of a chisel to restore sharp edge and functionality.

Removers

  • Tools designed for removing damaged fasteners.
  • Stud removers: have serrated wheels for gripping the studs to remove them.
  • Nut splitters: split rounded or broken nuts to facilitate removal.
  • Easy-outs: are a reusable method for removing broken bolts/screws.
  • Wax trick: apply molten wax for easier removal of rusted/gripped fasteners.

Hacksaws

  • Used to cut metal, including steel, aluminum, brass, or copper.
  • Incorporate replaceable blades with varying sharpness/teeth density.

Tool Sets and Accessories

  • Begin with a small set of tools instead of a bulky/expensive set.
  • Tool boxes are typically organized to help locate tools efficiently.

Seal Drivers and Pullers

  • Seal pullers: used to remove grease seals from automotive components.
  • Seal drivers: used to seat the seal into their pocket in the automotive component.

Electrical Hand Tools

  • Test lights: used for testing electricity in a circuit.
  • Soldering guns: use electricity or gas/butane to heat solder for electrical work in automotive components.

Use a Binder Clip

  • Binder clips (1 1/4 inches wide) are used to maintain parts/hardware in place, especially for fender covers.

Hand Tool Maintenance

  • Clean each tool after use, separating them in the tool box.
  • Line tool drawers with a material to prevent tool movement.
  • Release tension on clicker-type torque wrenches to prevent damage to internal mechanisms.
  • Store the tool box securely in a designated area.

Summary

  • Summary of various hand tool types and their functions.
  • Instructions on using each tool type.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Quiz Team

Related Documents

Automotive Engines: Theory and Servicing Tools PDF

Description

This quiz focuses on the identification, safe use, and maintenance of hand tools, particularly wrenches. Students will learn about different types of wrenches, their uses, and the importance of safety in using them. Prepare to explore the specifics of open-end, box-end, and combination wrenches.

More Like This

Types of Hammers and Wrenches Quiz
5 questions

Types of Hammers and Wrenches Quiz

LightHeartedDenouement avatar
LightHeartedDenouement
Fastening Tools and Techniques
24 questions

Fastening Tools and Techniques

WonderfulGhost avatar
WonderfulGhost
Wrenches and Spanners Overview
39 questions

Wrenches and Spanners Overview

SharperPansy avatar
SharperPansy
Use Quizgecko on...
Browser
Open
Browser
Browser