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ESE 2019 Technical ( Materials Science: Quiz 3 )
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Question 1
Dislocations in edges and screws in materials is a type of:
Question 2
Which among the following items can reduce noise levels?
Question 3
The percentage composition in Manganin alloy of Copper, Nickel and Manganese is:
Question 4
Which among the following antioxidants, serves as masking agents for polymers?
Question 5
Run-off pollution occurs when:
Question 6
Manganin alloy used for making resistors for laboratory instruments contains:
Question 7
In a superconducting magnet, wires of superconducting material are embedded in the thick copper matrix, because while the material is in the superconducting state:
Question 8
Which one of the following is correct? Ferrites are particularly suited for high frequency applications because of their
Question 9
Why are askerals not used as transformer or capacitor insulation?
Question 10
Which of the following statements is/are true for a good conductor of electricity?
1) Its conductivity decreases with increasing temperature.
2) Number of free electrons is around 1028 m-3
3) Its conductivity decreases with addition of impuritities.
4) It is a good conductor of heat also.
Select the correct answer using the codes given below:
1) Its conductivity decreases with increasing temperature.
2) Number of free electrons is around 1028 m-3
3) Its conductivity decreases with addition of impuritities.
4) It is a good conductor of heat also.
Select the correct answer using the codes given below:
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Nov 18ESE & GATE EC
