hand tools Test Flashcards
the width of the sawblade cut in the workpeice is called
kerf
the purpose of draw filling is to
produce a smooth and flat surface
how do you designate the size of a bench vise?
the size of the bench is designated by width of its jaws
the removable serrated jaws on a bench vise are made from?
hardened steel
a standard screwdriver blade maintains a better grip in the slot if the blade is slighty
concaved
centre punch angle is?
90 degrees
when tightening a bolt with a wrench
never push always pull
the reason for the crown on the end of a flat scraper is?
so the outside edges do not dig into finished workpiece
what is a purpose of a flat cold chisel
cutting off rivets
what is a chisel made from?
high carbon steel
two types of cleaning are?
chemical and mechanical cleaning
alkaline cleaning must only be used on which metals
iron
barrel finishing is?
is inexpensive and many parts can be completed at once
in the lapping process which is charged:
the lap
what is another name for hand pads and rolls
scotch brite pads
copper sulphate layout solution should be used on
ferrous metals
when angles are laid out with a bevel protractor the accuracy attainable is:
+= 0.5 degree 30`
the surface gauge is used:
to layout parallel to an edge
for maximum reliability when setting dividers to a dimension on a steel rule:
set one point to the 1 inch or 10mm graduation
trammels are used for scribing when:
the circle is scribed is beyond the range of dividers
when a radius is being laid out on a corner
the centre is located equidistant from the two adjacent sides
before using a vernier height gauge it is important to
zero the vernier to reference surface
if lines are scribed onto a workpiece it is considered to be
temporary layout
the grade of surface plate which would be used in the shop:
B grade
which part of the combination set would be used to find the centre on the end of the shaft:
a centre head and rule
precision layout with a vernier height gauge is accurate to:
0.001 inch and 0.02mm
the three hand taps found in a set are:
taper plug and bottoming
if you have a high speed steel hand tap breaks in a hole one to remove it is:
with an electrical discharge machine
choose the correct tool to turn a die
Die handle
the cutting action of a hand broach is performed by a series of succesive teeth each proceding
0.003 inch further than proceding tooth
hand reamers must be rotated
clockwise
before working around a load that has been raised with a hydraulic jack
the load must be blocked
on a cylindircal plug gauge the smaller diameter is
go gauge
a no go gauge is indentified by
an annural ring in the knurled surface
when checking a tapered hole with a taper gauge
rotate the gauge counter-clockwise one quatre turn
a snap gauge which measures how much a part varies from the basic size is called
dial indicator snap gauge
the advantage of using fixed gauges over instruments which provide exact measurments
they are faster and easier to use
prick punches angles are?
30-60 degrees
centre punch angle
90 degrees
the accute angle on the universal bevel protractor is used:
for angles less then 90 degrees
the discrimination of the universal protractor is
5 minutes
hand reamers are designed to remove:
0.001 to 0.005 inch
sine bar cylindrical rollers are
5 inches or 10 inches between centres
two parts of the blade
beam and blade
taps are made from?
high speed steel
for cutting with hand reamers counterclockwise or clockwise
clockwise
3 types of hand reamers
straight flute, helical flute and straight fliute expansion hand reamer
expansion reamers are used
to enlarge a hole
adjustable hand reamers come in diameter
1/4 to 3 inch
the bore should always have a
chamfer
taps are used to cut?
internal threads
spiral fluted taps are used
for tapping deep blind holes in ductile materials
taps are made from
high speed steel hardness of c63
tapered tap is used to tap holes with a taper of
3/4 inch per ft for pipes
What are the 3 types of torque wrenches
Beam type, dial type, click type
What are the 3 most commonly used screw drivers
Phillips, Robertson, standard
What scrapper would you use for removing gasket material from surfaces that seal?
The flat scrapper
What chisel would you use to cut oil grooves in journal bearings
Round nose chisel
What chisel would you use to cut oil grooves in journal bearings
Round nose chisel
What would you use to protect your work piece on a vise grip
Soft jaws
What type of file would you use for a high metal removal rate
Double-Cut
What 2 colours are most commonly used in layout
Blue and red
What scriber has a straight end and another end that has a hook bent at 90 degrees?
Double end scriber
What would you use to guide a drill in a workpiece?
Centre punch
What are the parts of a height gage
The beam, clamp screw, sliding vernier scale, scriber, base
How many mm are in a inch
25.4
