1
GATE ME 2024
Numerical
+2
-1.33

A flat surface of a C60 steel having dimensions of 100 mm (length) × 200 mm (width) is produced by a HSS slab mill cutter. The 8-toothed cutter has 100 mm diameter and 200 mm width. The feed per tooth is 0.1 mm, cutting velocity is 20 m/min and depth of cut is 2 mm. The machining time required to remove the entire stock is ____________ minutes (rounded off to 2 decimal places).

2
GATE ME 2017 Set 1
Numerical
+2
-0
A block of length $$200$$ $$mm$$ is machined by a slab milling cutter $$34$$ $$mm$$ in diameter. The depth of cut and table feed are set at $$2$$ $$mm$$ and $$18$$ $$mm/minute,$$ respectively. Considering the approach and the over travel of the cutter to be same, the minimum estimated machining time per pass is _____________ minutes.
3
GATE ME 2015 Set 3
+2
-0.6
A shaft of length $$90$$ $$mm$$ has a tapered portion of length $$55$$ $$mm.$$ The diameter of the taper is $$80$$ $$mm$$ at one end and $$65$$ $$mm$$ at the other. If the taper is made by tailstock set over method, the taper angle and the set over respectively are.
A
$${15^ \circ }32'$$ and $$12.16$$ $$mm$$
B
$${18.^ \circ }32'$$ and $$15.66$$ $$mm$$
C
$${11^ \circ }22'$$ and $$10.26$$ $$mm$$
D
$${10^ \circ }32'$$ and $$14.46$$ $$mm$$
4
GATE ME 2014 Set 2
+2
-0.6
A hole of $$20$$ $$mm$$ diameter is to be drilled in a steel block of $$40$$ $$mm$$ thickness. The drilling is performed at rotational speed of $$400$$ $$rpm$$ and feed rate of $$0.1$$ $$mm/rev.$$ The required approach and over run of the drill together is equal to the radius of drill. The drilling time (in minute) is
A
$$1.00$$
B
$$1.25$$
C
$$1.50$$
D
$$1.75$$
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