1
GATE PI 1994
MCQ (Single Correct Answer)
+1
-0.3
Solve for $$y$$ if $${{{d^2}y} \over {d{t^2}}} + 2{{dy} \over {dt}} + y = 0$$ with $$y(0)=1$$ and $${y^1}\left( 0 \right) = - 2$$
A
$$\,\left( {1 - t} \right){e^{ - t}}$$
B
$$\,\left( {1 + t} \right){e^{ t}}$$
C
$$\,\left( {1 + t} \right){e^{ - t}}$$
D
$$\,\left( {1 - t} \right){e^{ t}}$$
2
GATE PI 1994
True or False
+1
-0
The composition of an oxy-acetylene flame for cutting of steel contain more oxygen.
A
TRUE
B
FALSE
3
GATE PI 1994
MCQ (Single Correct Answer)
+1
-0.3
In metal cutting $$BUE$$ formation results in
A
improvement in surface finish
B
reduction in cutting force
C
deterioration of surface finish
D
improvement in tool life
4
GATE PI 1994
MCQ (Single Correct Answer)
+1
-0.3
Only negative rake angles are used with the following tool material
A
$$HSS$$
B
Carbon tool steels
C
Carbides
D
Diamonds
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
CBSE
Class 12