1
GATE ME 2007
MCQ (Single Correct Answer)
+2
-0.6
A gear set has a pinion with $$20$$ teeth and a gear with $$40$$ teeth. The pinion runs at $$30rev/s$$ and transmits a power of $$20KW$$. The teeth are on the $${20^ \circ }$$ full-depth system and have a module of $$5mm.$$ The length of the line of action is $$19mm.$$

The contact ratio of the contacting tooth is

A
$$1.21$$
B
$$1.25$$
C
$$1.29$$
D
$$1.33$$
2
GATE ME 2006
MCQ (Single Correct Answer)
+2
-0.6
Twenty degree full depth involute profiled $$19$$-tooth pinion and $$37$$-tooth gear are in mesh. If the module is $$5mm,$$ the center distance between the gear pair will be
A
$$140mm$$
B
$$150mm$$
C
$$280mm$$
D
$$300mm$$
3
GATE ME 2004
MCQ (Single Correct Answer)
+2
-0.6
A compacting machine shown in the figure below is used to create a desired thrust force by using a rack and pinion arrangement. The input gear is mounted on the motor shaft. The gears have involutes teeth of $$2$$ $$mm$$ module. GATE ME 2004 Machine Design - Design of Spur Gears Question 12 English

If the pressure angle of the rack is $${20^ \circ },$$ the force acting along the line of action between the rack and the gear teeth is

A
$$250$$ $$N$$
B
$$342$$ $$N$$
C
$$532$$ $$N$$
D
$$600$$ $$N$$
4
GATE ME 2004
MCQ (Single Correct Answer)
+2
-0.6
A compacting machine shown in the figure below is used to create a desired thrust force by using a rack and pinion arrangement. The input gear is mounted on the motor shaft. The gears have involutes teeth of $$2$$ $$mm$$ module. GATE ME 2004 Machine Design - Design of Spur Gears Question 13 English

If the drive efficiency is $$80\% ,$$ the torque required on the input shaft to create $$1000N$$ output thrust is

A
$$20$$ $$Nm$$
B
$$25$$ $$Nm$$
C
$$32$$ $$Nm$$
D
$$50$$ $$Nm$$
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