1
GATE ME 1988
MCQ (Single Correct Answer)
+1
-0.3
For full depth of involute spur gears, minimum number of teeth of pinion to avoid interference depends upon
A
pressure angle
B
speed ratio
C
circular pitch
D
pitch diameter
2
GATE ME 1988
MCQ (Single Correct Answer)
+1
-0.3
If the load on a ball bearing is reduced to half, the life of the ball bearing will
A
increase $$8$$ times
B
increase $$4$$ times
C
increase $$2$$ times
D
not change
3
GATE ME 1988
MCQ (Single Correct Answer)
+1
-0.3
The contraction allowance provided on the pattern and core boxes compensates for the following type of contraction.
A
Liquid contraction
B
Solidification contraction
C
Solid contraction
D
All the above three types of contractions.
4
GATE ME 1988
MCQ (Single Correct Answer)
+1
-0.3
The ideal cutting fluid for low speed machining of metals should be one which
A
removes the heat faster from the cutting zone,
B
forms a coating on the cutting tool by chemical reaction
C
forms a low shear strength film of work material at the tool chip interface
D
serves as a dielectric minimizing thereby reactions due to $$EMF$$ at the interface
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