Mild steel
Cast iron
Refractory blocks
Stainless steel
✅ 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.
2062. The fermentor used for the production of ethyl alcohol from molasses is made of
Wood
Concrete
Copper bearing steel
Procelain
✅ The correct answer is option C.
2063. Electronic structure of a material is generally studied by
Metallurgical microscope
Electron diffraction
Spectroscopic techniques
X-ray
✅ The correct answer is option C.
2064. German silver used for decorative purposes contains maximum percentage of
Silver
Copper
Zinc
Nickel
✅ The correct answer is option B.
2065. The hardest material just prior to diamond in Mhos scale is
Topax
Carborundum
Corrundum
Calcite
✅ The correct answer is option C.
2066. Visco-elastic behaviour of materials which is time dependent is common in
Plastics
Crystalline solid
Non-crystalline solids
Non-crystalline organic polymer
✅ The correct answer is option D.
2067. Which of the following is the most elastic material?
Plastic
Glass
Steel
Rubber
✅ The correct answer is option C.
2068. Spark plugs, ignition tubes and electrodes are made of nickel __________ alloys.
Beryllium
Manganese
Copper
Iron
✅ The correct answer is option B.
2069. Low carbon steels are those in which carbon percentage is around
0.1 to 0.35
0.4 to 0.7
0.8 to 1.5
1.5 to 2
✅ The correct answer is option A.
2070. In drop forging process, the forging is done by dropping the __________ at high velocity.
Hammer
Workpiece
Die with hammer
Weight on hammer
✅ The correct answer is option C.