1
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
$$600$$ $$N$$
2
GATE ME 2004
MCQ (Single Correct Answer)
+2
-0.6
Gray cast iron blocks $$200 \times 100 \times 10\,\,mm$$ are to be cast in sand moulds. Shrinkage allowance for pattern making is $$1$$%. The ratio of the volume of pattern to that of the casting will be
A
$$0.97$$
B
$$0.99$$
C
$$1.01$$
D
$$1.03$$
3
GATE ME 2004
MCQ (Single Correct Answer)
+1
-0.3
Misrun is a casting defect which occurs due to
A
Very high pouring temperature of the metal
B
Insufficient fluidity of the molten metal
C
Absorption of gases by the liquid metal
D
Improper alignment of the mould flasks
4
GATE ME 2004
MCQ (Single Correct Answer)
+2
-0.6
In a rolling process, sheet of $$25$$ $$mm$$ thickness is rolled to $$20$$ $$mm$$ thickness. Roll is of diameter $$600$$ $$mm$$ and it rotates at $$100$$ $$rpm.$$ The roll strip contact length will be
A
$$5$$ $$mm$$
B
$$39$$ $$mm$$
C
$$78$$ $$mm$$
D
$$120$$ $$mm$$
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