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ESE ME 2018 Achiever Study Plan: Manufacturing Quiz 2
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Question 1
A hole of diameter 35 mm is to be punched in a sheet metal of thickness t and ultimate shear strength 400 MPa, using punching force of 44 kN. The maximum value of ‘t’ is
Question 2
Match List-I (Forging/Technique) with List-II (Process) and select the correct answer using the code given below the lists:
List-I
A). Smith Forging
B). Drop Forging
C). Press Forging
D). Machine Forging
List-II
1. Material is only upset to get the desired shape
2. Carried out manually in open dies
3. Done in closed impression dies by hammers in blows
4. Done in closed impression dies by continuous squeezing force
List-I
A). Smith Forging
B). Drop Forging
C). Press Forging
D). Machine Forging
List-II
1. Material is only upset to get the desired shape
2. Carried out manually in open dies
3. Done in closed impression dies by hammers in blows
4. Done in closed impression dies by continuous squeezing force
Question 3
Match List-I with List-II and select the correct answer using the code given below the lists:
Question 4
The stick-slip motion is found to occur in machine tools slides under certain conditions which are
Question 5
Consider the following in case of high-energy forming processes:
1) The evacuation between die and blank in explosive forming is done by a vacuum pump.
2) The pressure waves produced in water in explosive forming deform the blank to the die shape.
3) The electrohydraulic forming makes use of discharge of large amount of electrical energy used in a capacitor blank.
4) In Petroforge, the piston is moved by combustion of fuel moving at the rate of 150-200 m/s.
Which of the above are correct?
1) The evacuation between die and blank in explosive forming is done by a vacuum pump.
2) The pressure waves produced in water in explosive forming deform the blank to the die shape.
3) The electrohydraulic forming makes use of discharge of large amount of electrical energy used in a capacitor blank.
4) In Petroforge, the piston is moved by combustion of fuel moving at the rate of 150-200 m/s.
Which of the above are correct?
Question 6
High energy rate forming process used for forming components from thin metal sheets or deform thin tubes is
Question 7
Match the correct combination for following metal working processes
Question 8
Which is correct?
Question 9
In the rolling process, the roll separating force can be decreased by __________.
Question 10
Which of the following is components of extreme‐pressure lubricants?
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Mar 18ESE & GATE ME
