1
GATE ME 1998
MCQ (Single Correct Answer)
+1
-0.3
Bolts in the flanged end of pressure vessel are usually pre- tensioned. Indicate which of the following statements is not true
A
Pre- tensioning helps to seal the pressure vessel
B
Pre- tensioning increase the fatigue life of the bolts
C
Pre- tensioning reduces the maximum tensile stress in the bolts
D
Pre- tensioning helps to reduce the effect of pressure pulsations in the pressure vessels
2
GATE ME 1998
MCQ (Single Correct Answer)
+1
-0.3
Which theory of failure will you use for aluminium components under steady loading is
A
principal stress theory
B
principal strain theory
C
strain energy theory
D
maximum shear stress theory
3
GATE ME 1998
Subjective
+2
-0
A cylinder of $$155$$ $$mm$$ is to be reduced $$150$$ $$mm$$ diameter in one turning cut with a feed of $$0.15$$ $$mm$$/ revolution and a cutting speed of $$150$$ $$m/min$$ on a $$NC$$ lathe. What are the programmed spindle speeds programmed feed rate, and the material removal rate?
4
GATE ME 1998
MCQ (Single Correct Answer)
+2
-0.6
In orthogonal machining operation, the chip thickness and the uncut chip thickness are equal to $$0.45mm$$. If the tool rake angle is $$0$$ deg. The shear plane angle is
A
$$45$$
B
$$30$$
C
$$18$$
D
$$60$$
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