Mechanical Engineering : Engineering Materials QUESTIONS AND ANSWERS :: part3 : 1 to 5
Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
1.Solder is an alloy consisting of |
| tin, antimony, copper |
| tin and copper |
| tin and lead |
| lead and zinc |
| lead and copper. |
2.Maximum percentage of carbon in ferrite is |
| 0.025% |
| 0.06% |
| 0.1% |
| 0.25% |
| 0.8%. |
3.Surveying tapes are made of a material having low coefficient of expansion and enough strength. The alloy used is |
| silver metal |
| duralumin |
| Hastelloy |
| monel metal |
| invar. |
4.An engineer's hammer is made of |
| cast iron |
| forged steel |
| mild steel |
| high carbon steel |
| H.S.S. |
5.Cyaniding is the process of |
| dipping steel in cyanide bath |
| reacting steel surface with cyanide salts |
| adding carbon and nitrogen by heat treatment of steel to increase its surface hardness |
| obtaining cyanide salts |
| making corrosion resistant steel. |
More Engineering Materials QUESTIONS AND ANSWERS available in next pages
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