1
GATE ME 2015 Set 3
MCQ (Single Correct Answer)
+1
-0.3
A gear train is made up of five spur gears as shown in the figure. Gear $$2$$ is driver and gear $$6$$ is driven member. $${N_{2,}}{N_{3,}}{N_{4,}}{N_5}$$ and $${N_6}$$ represent number of teeth on gears $$2,3,4,5,$$ and $$6$$ respectively, The gear(s) which act(s) as idler(s) is/are GATE ME 2015 Set 3 Theory of Machines - Gears and Gear Trains Question 20 English
A
Only $$3$$
B
Only $$4$$
C
Only $$5$$
D
Only $$3$$ and $$5$$
2
GATE ME 2014
MCQ (Single Correct Answer)
+1
-0.3
Which one of the following is used to convert a rotational motion into a translational motion?
A
Bevel gears
B
Double helical gears
C
Worm gears
D
Rack and pinion gears
3
GATE ME 2012
MCQ (Single Correct Answer)
+1
-0.3
The following are the data for two crossed helical gears used for speed reduction:
Gear $$I:$$ Pitch circle diameter in the plane of rotation 80mm and helix angle 30o

Gear $$II:$$ Pitch circle diameter in the plane of rotation 120mm and helix angle 22.5o

If the input speed is 1440 rpm. The output speed in rpm is

A
1200
B
900
C
875
D
720
4
GATE ME 2010
MCQ (Single Correct Answer)
+1
-0.3
Tooth interference in an external involute spur gear pair can be reduced by
A
decreasing center distance between gear pair
B
decreasing module
C
decreasing pressure angle
D
increasing number of gear teeth
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