Related Questions

Which of the following statement is correct about EDM machining?
A It can machine hardest materials
B It produces high degree of surface finish
C The tool and work are never in contact with each other
D All of these
Broaching is applied for machining
A Internal and external surfaces
B Round or irregular shaped holes
C External flat and contoured surfaces
D All of these
The mechanism of material removal in EDM process is
A Erosion and Cavitations
B Cavitations and Evaporation
C Melting and Evaporation
D Melting and Corrosion
EDM is the acronym for:
A Enterprise data management
B Engineering drawing management
C Enterprise drawing manipulation
D Engineering data manipulation
As tool and work are not in contact in EDM process
A No relative motion occurs between them
B No wear of tool occurs
C No power is consumed during metal cutting
D No force between tool and work occurs
A special lottery is to be held to select the student who will live in the only deluxe room in a dormitory . There are 100 seniors, 150 juniors and 200 sophomres who applied. Each senior's junior's name , 2 times; and each sophomres who applied. Each senior's name is placed in the lottery 3 times; each junior's name ,2 times name, 2 times ; and each sphomore's name , 1 time . What is the probability that a senior's name will be chosen?
A 18
B 38
C 48 
D 28
The ratio of the stresses produced by a suddenly applied load and by a gradually applied load on a bar, is
A $$\frac{1}{4}$$
B $$\frac{1}{2}$$
C 1
D 2
For given applied voltage, with the increase in frequency of the applied voltage
A eddy current loss will decrease
B eddy current loss will increase
C eddy current loss will remain unchanged
D none of the above
The stress in the bar when the load is applied suddenly is __________ as compared to the stress induced due to gradually applied loads.
A Same
B Double
C Three times
D Four times
The stress induced in a body due to suddenly applied load compared to when it is applied gradually is
A Same
B Half
C Two times
D Four times

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