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WorksheetsTechnical Aptitude Test - 2
Total questions: 45
Worksheet time: 23mins
Drilling is a process of
Cutting a slot
Producing a circular hole
Cutting threads
Finishing a surface
The tool used in drilling operation is
Lathe tool
Milling cutter
Drill bit
Reamer
Which machine is commonly used for drilling operations?
Lathe
Shaper
Drilling machine
Grinding machine
The most commonly used drill is
Flat drill
Center drill
Twist drill
Gun drill
A twist drill usually has
One cutting edge
Two cutting edges
Three cutting edges
No cutting edge
The part of the drill that removes material is
Shank
Web
Cutting edge
Neck
The shank of a drill is used to
Cut material
Hold the drill in machine
Remove chips
Cool the tool
Which angle is called the point angle of a drill?
59°
90°
118°
180°
The standard point angle of a twist drill is
90°
100°
118°
135°
The helix angle of a twist drill helps in
Holding the drill
Chip removal
Tool alignment
Reducing speed
Cutting fluid in drilling is mainly used to
Increase speed
Reduce heat
Increase friction
Reduce tool size
Which operation enlarges an existing hole slightly?
Drilling
Boring
Reaming
Tapping
Which operation produces internal threads?
Drilling
Boring
Tapping
Reaming
Flutes in a drill are provided to
Increase strength
Reduce vibration
Remove chips
Hold lubricant
The web of a drill is
Cutting edge
Central portion
Outer surface
Shank portion
The feed in drilling is
Tool rotation speed
Linear movement of drill
Cutting angle
Cooling rate
Which machine is suitable for small drilling jobs?
Radial drilling machine
Gang drilling machine
Bench drilling machine
CNC machine
Radial drilling machine is mainly used for
Small jobs
Heavy and large jobs
Precision work
Grinding
Which operation is done before drilling to locate the hole?
Reaming
Tapping
Center punching
Boring
The main cutting motion in drilling is
Linear
Rotational
Oscillatory
Random
Which drill shank is used for larger drills?
Straight shank
Taper shank
Hex shank
Square shank
Morse taper is related to
Cutting speed
Drill point angle
Drill shank
Feed rate
Drilling produces which type of hole?
Square
Rectangular
Circular
Triangular
Which of the following is NOT a drilling operation?
Tapping
Reaming
Milling
Boring
Chip thickness in drilling is controlled by
Cutting speed
Feed rate
Drill diameter
Cutting fluid
Which tool is used to make a pilot hole?
Reamer
Center drill
Tap
Boring bar
Pilot holes are drilled to
Increase speed
Improve accuracy
Reduce drill wear
All of the above
Cutting speed in drilling is measured in
mm/min
rpm
m/min
kg
Feed in drilling is measured in
mm/rev
rpm
m/min
degree
Which material is easiest to drill?
Mild steel
Cast iron
Aluminum
Stainless steel
Excessive feed rate causes
Better surface finish
Tool breakage
Less heat
Smaller chips
The margin of a drill helps in
Cutting
Guiding the drill
Chip removal
Cooling
Which drill is used for deep holes?
Flat drill
Gun drill
Center drill
Twist drill
Which material requires lower cutting speed?
Aluminum
Brass
Steel
Plastic
The neck of a drill is located between
Shank and body
Flutes and cutting edge
Web and margin
Tip and shank
The process of improving hole accuracy is
Drilling
Reaming
Milling
Turning
Which part of drill reduces friction with hole wall?
Web
Margin
Shank
Neck
Cutting speed too high will result in
Longer tool life
Less heat
Rapid tool wear
Better accuracy
Which is the simplest drilling machine?
CNC drilling machine
Radial drilling machine
Bench drilling machine
Automatic drilling machine
Drilling belongs to
Casting
Forming
Machining
Joining
The axis of drill during drilling is
Horizontal only
Vertical only
Inclined
Depends on setup
Which tool is used after drilling for threading?
Reamer
Tap
Boring bar
Drill
Drill life mainly depends on
Tool material
Cutting speed
Feed rate
All of the above
Which drilling machine allows movement of spindle and arm?
Bench
Gang
Radial
CNC
The function of coolant in drilling is
Reduce wear
Remove heat
Improve surface finish
All of the above
