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WorksheetsTEST 20
Total questions: 50
Worksheet time: 25mins
Which type of gear is a cylinder, wheel or disk on the surface of which is cut parallel teeth?
Bevel gear
Helical gear
Spur gear
Worm gear
Which type of gear has a ratio of 1:1?
Herringbone gears
Miter gear
Internal gear
Spur gear
The distance between similar sides of adjacent teeth measured on the pitch line is called:
Diametral pitch
Linear pitch
Circular pitch
Axial pitch
In rack gear, circular pitch is called:
Linear pitch
Base pitch
Diametral pitch
Axial pitch
__________ is equal to twice the addendum.
Tooth flank
Tooth thickness
Whole depth
Working depth
The meaning of module in a gearing system is:
Distance
Addendum
Measure
Refers to the portion of the tooth surface adjacent to the involute lying inside a radial line passing through an imaginary intersection of the involute and the base circle.
Over cut
Under cut
Tip relief
None of these
In a pair of gears, spur or bevel, the smaller is often called:
Rack
Pinion
Worn
Idler
Which of the following gears that are of the same and transmit motion at right angles?
Herringbone gears
Spur gears
Miter gears
Rack gears
The cone, which represents in bevel gears the original friction surfaces are called
Back cone
Length of cone
Pitch cones
Cone distance
Which of the following angles equal the pitch angle?
Back angle
Front angle
Face angle
Root angle
The surface between the flanks of adjacent teeth.
Top land
Tooth flank
Tooth face
Bottom land
The portion of the common tangent to the base circles along which contact between mating involutes occurs.
Line of action
Pitch line
Arc of action
Angle of action
The intersection between the axes of the line of centers and the common tangent to the base circles,
Pitch line
Pitch circle
Pitch point
Pitch surface
The angle between the element of the face cone and its axis.
Face angle
Back angle
Front angle
Increment angle
Refers to a portion of the small end of the tooth.
Heel
Toe
Sole
Corner
The apex of the pitch cone.
Cone vertex
Cone distance
Cone radius
Cone center
Gear pump used in hydraulic system are used for:
Low and medium pressure
Medium and high pressure
Low and high pressure
Medium and not high pressure
In machine tool drive, the modulus for gears is usually selected between:
10 ≥ μ ≥ 1
2 ≥ μ 1
20 ≥ μ ≥ 1
5 ≥ μ ≥ 1
The shape of the curve on the side of gear is termed as:
Stub
Involute
Trochoid
Cycloid
The distance in a straight line from one side of a tooth to the side at points where the pitch circle passes through the tooth.
Circular pitch
Pitch
Chordal thickness
Tooth length
The _______ of a bevel gear is equal to the altitude of the pitch cone.
Length of cone
Vertex distance
Length of hub
Thickness
The _______ of a worm is the distance between the center of one tooth and the center of an adjacent tooth, measured perpendicular to the teeth.
Diametral pitch
Circular pitch
Axial pitch
Normal pitch
The _______ of a worm gear is the concave surface of the gear tooth.
Radius
Throat
Pitch
Addendum
A type of gear, which is used for heavy duty work where a large ratio of speed is required.
Worm gear
Bevel gear
Spur gear
Miter gear
A _________ is a cylinder with teeth resembling those of acme thread.
Pinion
Spur
Worm
Bolt
The _________ is the angle at which the teeth of a helical gear are slanted across the face of the gear.
Lead angle
Helix angle
Pressure angle
Pitch angle
A __________ is one thicker in proportion to its length than the involute tooth.
Hypoid
Hypoid
Stub tooth
Spiral
Which gears are used to connect parallel shafts lying in the same plane?
Worm gears
Bevel gears
Herringbone gears
Spiral gears
Which of the following is used to connect the shafts at an angle but lying in the same plane?
Helical gears
Worm and worm wheel
Spur gears
Herringbone gears
The product of circular pitch and diametral pitch is:
2π
π
3 π
4 π
A line drawn through all the points at which the teeth touch each other.
Angle of contact
Arc of contact
Path of contact
Arc of approach
The length of the gear tooth measured along an element of the pitch surface is called:
Acting flank
Face width
Flank of the tooth
Tooth space
The ________ is equal to the tooth thickness plus the space width.
Normal pitch
Axial pitch
Diametral pitch
Circular pitch
The _________ is the arc of the pitch circle where the tooth profile cuts the pitch circle when a pair of teeth first comes in contact until they are in contact as the pitch point.
Arc of recess
Arc of approach
Arc of contact
Arc of action
The _________ traced by the outermost corner of one tooth on the plane of the other gear.
Cycloid
Hypocycloid
Epitrochoid
Trochoid
An imaginary circle passing through the points at which the tooth of the meshing gears contact each other.
Pitch circle
Base circle
Addendum circle
Dedendum circle
A gear with teeth on the outer cylindrical surface.
Rack gear
Zerol gear
Miter gear
External gear
The diameter of a circle coinciding with the top of the teeth of an internal gear.
Dedendum diameter
Pitch diameter
Base diameter
Internal diameter
It is standard practice to assume that the thickness of the tooth measured sound the pitch circle is exactly ________ the circle path.
One half
One third
One fourth
One fifth
The helix angles for the herringbone gears are used from ______for industrial gears.
10 to 15
15 to 20
20 to 30
25 to 45
The distance parallel to the axis from the pitch circle to the face of the shoulder or hub.
Back one
Backing
Crown height
Apex distance
A machine that makes gear teeth by means of a reciprocating cutter that rotates slowly with the work.
Gear forming
Gear hobber
Gear shaper
Gear cutter
A type of gear wheels connecting non-parallel, non-intersecting shafts usually at right angles.
Helical gear
Herringbone gear
Hypoid gear
Bevel gear
The angle between the plane of the pitch circle and a plane tangent to the end of the tooth.
Foot angle
Back angle
Dedendum angle
Face angle
The circle containing the bottoms of the tooth spaces.
Root circle
Working depth circle
Base circle
Pitch circle
The depth of the tooth inside of the pitch line is called:
Working depth
Dedendum
Total depth
Whole depth
The amount by which the dedendum in a given gear exceeds the addendum of its mating gear.
Whole depth
Clearance
Backish
Working depth
The outside diameter of the worm measured on the central plane.
Dedendum diameter
Addendum diameter
Throat diameter
Pitch diameter
The circle from which the involute is generated.
Base circle
Pitch circle
Working depth circle
Addendum circle
