1
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.
2
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 $$14.46$$ $$mm$$
3
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
$$1.75$$
4
GATE ME 2012
+2
-0.6
In a single pass drilling operation, a through hole of $$15$$ $$mm$$ diameter is to be drilled in a steel plate of $$50$$ $$mm$$ thickness. Drill spindle speed is $$500$$ $$rpm,$$ feed is $$0.2$$ $$mm/rev$$ and drill point angle is $${118^ \circ }.$$ Assuming $$2$$ $$mm$$ clearance at approach and exit, the total drill time (in seconds) is
A
$$35.1$$
B
$$32.4$$
C
$$31.2$$
D
$$30.1$$
GATE ME Subjects
EXAM MAP
Medical
NEET