Having notches in the specimen
Rise in temperature
Under stressing the specimen
Having scratches on the surface
✅ The correct answer is option C.
Engineering
Boost your preparation with the latest Engineering MCQs with answers and explanations. Our collection covers civil engineering, electrical engineering, mechanical engineering, electronics, software engineering, and other core subjects. These multiple-choice questions are designed for students, competitive exam aspirants, and professionals preparing for NTS, PPSC, FPSC, CSS, PMS, PEC exams, university entry tests, and job interviews. Practice online with updated Engineering MCQs to strengthen concepts, improve technical knowledge, and perform better in exams and recruitment tests.
1742. Most suitable material of construction for the storage of concentrated nitric acid is
Cast iron
Monel
Karbate
Aluminium or chromium alloys (Cr > 18% for cold acid)
✅ The correct answer is option D.
1743. Carbon content in plain carbon steel is __________ percent.
0.1 to 0.15
0.35 to 0.45
0.65 to 0.80
0.85 to 1.2
✅ The correct answer is option B.
1744. Maximum carbon content in cast iron is __________ percent.
3.8
5.2
4.8
4.3
✅ The correct answer is option D.
1745. Concrete tank can be used to store
Alum
Ferrous sulphate
Sulphuric acid
Saturated brine
✅ The correct answer is option D.
1746. Which of the following contains maximum percentage of carbon?
Boiler plate steel
Rail steel
Saws for cutting steel
Railway spring steel
✅ The correct answer is option C.
1747. Steel pipes are normally manufactured by __________ process.
Extrusion
Cold working
Forging
Electroforming
✅ The correct answer is option A.
1748. Presence of manganese in alloy steel improves its
Corrosion resistance
Cutting ability
Abrasion resistance & toughness
Elasticity & creep resistance
✅ The correct answer is option C.
1749. ‘Hypersil’ is a __________ steel.
High speed
Silicon
Molybdenum
Tungsten
✅ The correct answer is option B.
1750. Tin base and lead base alloys are used for bearing materials. Tin compared to lead has lower
Price
Corrosion resistance
Thermal conductivity
Abundant availability
✅ The correct answer is option D.