A. Turning
B. Dressing
C. Forming
D. Surface finishing
✅ The correct answer is option D.
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.
152. Which of the following emissions in the exhaust gas of an I.C. engine causes the formation of photochemical smog?
A. Nitrogen oxides
B. Hydrocarbons
C. Both A & B
D. Carbon monoxide
✅ The correct answer is option C.
153. Which of the following is a weak acid?
A. HF
B. HCl
C. HI
D. HBr
✅ The correct answer is option A.
154. Otto cycle used in spark ignition petrol engines is also known as the constant __________ cycle.
A. Volume
B. Pressure
C. Heat
D. None of these
✅ The correct answer is option A.
155. The amount of different substances produced, when the same quantity of electricity is passed through different solutions are proportional to their
A. Equivalent weight
B. (equivalent weight)²
C. Molecular weight
D. (molecular weight)²
✅ The correct answer is option A.
156. Wrought iron does not have
A. Uniform strength in all directions
B. Ability to hold protective coating
C. High ductility & corrosion resistance
D. Easily weldable characteristics
✅ The correct answer is option A.
157. Out of the following, the alloy which has equal percentage of constituents, is
A. White metal
B. Gun metal
C. Duralumin
D. Constanton
✅ The correct answer is option D.
158. LVDT used for displacement measurement is a/an __________ transducer.
A. Passive
B. Active
C. Capacitive
D. None of these
✅ The correct answer is option A.
159. The elastic strain energy of a unit length of an edge dislocation as compared to that of a screw dislocation is
A. More
B. Equal
C. Less
D. Double
✅ The correct answer is option A.
160. In case of compression of one kg of air, the work done will be the least, when the value of polytropic index ‘n’ is
A. 1
B. 1.4
C. 1.5
D. Y = Cp/Cv
✅ The correct answer is option A.