Related Questions

which type of gears has point contact between two mating gears?
A helical gears
B spiral gears
C both (a) and (b)
D none of these
The other gears are the ............... gears which are those most used in normal driving.
A front
B onward
C abvance
D ahead
The gears are termed as medium velocity gears, if their peripheral velocity is
A 1-3 m/s
B 3-15 m/s
C 15-30 m/s
D 30-50 m/s
Two advantages of using helical gears rather than spur gears in a transmission system are
A Strength and cost
B Strength and less end thrust
C Noise level and strength
D Noise level and economy
Which of the following statement is correct for involute gears?
A The interference is inherently absent
B The variation in centre distance of shafts increases radial force
C A convex flank is always in contact with concave flank
D The pressure angle is constant throughout the teeth engagement
Which one of the following is true for involute gears?
A Interference is inherently absent
B Variation in centre distance of shafts increases radial force
C A convex flank is always in contact with concave flank
D Pressure angle is constant throughout the teeth engagement
A car normally has four or five gears of which one is a ................... gear
A return
B retiring
C backward
D reverse
The contact ratio for gears is
A zero
B less than one
C greater than one
D none of the mentioned
The arrangement is called bevel gearing, when two __________ are connected by gears.
A tension in the tight side of the belt
B tension in the slack side of the belt
C sum of the tensions on the tight side and slack side of the belt
D average tension of the tight side and slack side of the belt
The type of gears used to connect two non parallel and non intersecting shafts is
A Spur gear
B Helical gear
C Bevel gear
D Spiral gear

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