Related Questions

In ultrasonic machining, tool is made of
A Tungsten carbide
B Brass or copper
C Diamond
D Stainless steel
The abrasive slurry used in ultrasonic machining contains fine particles of
A Aluminium oxide
B Boron carbide
C Silicon carbide
D Any one of these
Ultrasonic machining is best suited for
A Tool steels
B Sintered carbides
C Glass
D All of these
In ultrasonic machining, the metal is removed by
A Using abrasive slurry between the tool and work
B Direct contact of tool with the work
C Maintaining an electrolyte between the work and tool in a very small gap between the two
D Erosion caused by rapidly recurring spark discharges between the tool and work
After driving for fifty kilo-meter, the driver suddenly realized that he has been driving in the wrong direction. Choose the wrong one following sentences.
A After
B realized
C has been driving
D in
One of the four sentences, given below is grammatically wrong. Choose the wrong sentence :
A The land is belonged to an old lady.
B They parted from one another suddenly.
C The leader expressed himself forcibly.
D Mother bought me an icecream.
In an examination there were 50 multiple choice question, For every right answer 1 point is added and for every wrong answer 0.25 points are deducted from the total. No point is added or deducted for any unanswered question. An applicant answered 80% of the total number of questions and got a total point of 35. How many answers of the applicant were wrong?
A 10
B 5
C 4
D 6
I shall not wrong you in any way. Here 'wrong' is a/an -
A Adverb
B Adjective
C Verb
D Noun
Which one of the following animals can hear ultrasonic sound ?
A Rat
B Squirrel
C Cat
D Bat
Which of the following are considered applications of ultrasonic testing ?
A Determination of elastic constant
B Detection of defects in metal
C Measurement of material thickness
D None of the above

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