The form factor of a helical gear __________ with the increase in the helix angle.

Machine Design
The form factor of a helical gear __________ with the increase in the helix angle.

Increases

None of these

Decreases

Remains constant

Increases

None of these

Decreases

Remains constant

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Machine Design
The efficiency of a square threaded screw is maximum if the helix angle is equal to(Where φ = Angle of friction)

45° - φ

45° - φ/2

90° - φ

45° + φ/2

45° - φ

45° - φ/2

90° - φ

45° + φ/2

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Machine Design
According to I.B.R., shearing resistance required to shear off the rivet per pitch length (in double shear) is (where n = Number of rivets per pitch length)

3 × (π/4) d² × τ × n

2 × (π/4) d² × τ × n

1.875 × (π/4) d² × τ × n

(π/4) d² × τ × n

3 × (π/4) d² × τ × n

2 × (π/4) d² × τ × n

1.875 × (π/4) d² × τ × n

(π/4) d² × τ × n

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Machine Design
Elastic nut is a locking device in which

Through slots are made at top and a cotter pin is passed through these and a hole in the bolt, and cotter pin splitted and bent in reverse direction at other end

Hard fibre or nylon cotter is recessed in the nut and becomes threaded as the nut is stewed on the bolt causing a tight grip

A slot is cut partly in middle of nut and then slot reduced by tightening a screw

One small nut is tightened over main nut and main nut tightened against smaller one by loosening, creating friction jamming

Through slots are made at top and a cotter pin is passed through these and a hole in the bolt, and cotter pin splitted and bent in reverse direction at other end

Hard fibre or nylon cotter is recessed in the nut and becomes threaded as the nut is stewed on the bolt causing a tight grip

A slot is cut partly in middle of nut and then slot reduced by tightening a screw

One small nut is tightened over main nut and main nut tightened against smaller one by loosening, creating friction jamming

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Machine Design
18/8 steel contains

18% nickel and 8% chromium

18% nickel and 8% vanadium

18% vanadium and 8% nickel

18% chromium and 8% nickel

18% nickel and 8% chromium

18% nickel and 8% vanadium

18% vanadium and 8% nickel

18% chromium and 8% nickel

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Machine Design
If a bearing is designated by the number 305, it means that the bearing is of

Light series whose bore is 5 mm

Light series whose bore is 25 mm

Medium series whose bore is 25 mm

Medium series whose bore is 5 mm

Light series whose bore is 5 mm

Light series whose bore is 25 mm

Medium series whose bore is 25 mm

Medium series whose bore is 5 mm

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Machine Design

Machine Design The form factor of a helical gear __________ with the increase in the helix angle.

Machine Design The efficiency of a square threaded screw is maximum if the helix angle is equal to(Where φ = Angle of friction)

Machine Design According to I.B.R., shearing resistance required to shear off the rivet per pitch length (in double shear) is (where n = Number of rivets per pitch length)

Machine Design Elastic nut is a locking device in which

Machine Design 18/8 steel contains

Machine Design If a bearing is designated by the number 305, it means that the bearing is of

Machine Design
The form factor of a helical gear __________ with the increase in the helix angle.

Machine Design
The efficiency of a square threaded screw is maximum if the helix angle is equal to(Where φ = Angle of friction)

Machine Design
According to I.B.R., shearing resistance required to shear off the rivet per pitch length (in double shear) is (where n = Number of rivets per pitch length)

Machine Design
Elastic nut is a locking device in which

Machine Design
18/8 steel contains

Machine Design
If a bearing is designated by the number 305, it means that the bearing is of