Chemical Engineering Archives

Chemical Engineering

Prepare with the best Chemical Engineering MCQs with answers and detailed explanations for exams and job tests. Our collection covers key topics such as chemical process calculations, thermodynamics, fluid mechanics, heat transfer, mass transfer, reaction engineering, instrumentation, and plant design. These Chemical Engineering multiple-choice questions are ideal for students, competitive exam aspirants, and professionals preparing for NTS, PPSC, FPSC, PEC exams, GATE, university entry tests, and job interviews. Practice online with updated Chemical Engineering MCQs to strengthen your concepts and improve technical problem-solving skills.

1161. High speed steel tools retain their hardness upto a temperature of __________ °C.

A. 500

B. 750

C. 900

D. 1100

✅ The correct answer is option C.

1162. When metals are heated to high temperature, their __________ increases in general.

A. Atomic vibration

B. Creep strength

C. Yield stress & ultimate tensile strength

D. Toughness & stiffness

✅ The correct answer is option A.

1163. Transition from laminar flow to turbulent flow in fluid flow through a pipe does not depend upon the

A. Length of the pipe

B. Diameter of the pipe

C. Density of the fluid

D. Velocity of the fluid

✅ The correct answer is option A.

1164. Electrostatic separation of minerals from each other is based on their differences in the following property.

A. Densities

B. Magnetic permeabilities

C. Electrical conductivities

D. Hardness

✅ The correct answer is option C.

1165. Which of the following alloying elements is present in maximum percentage in high speed steel.

A. Molybdenum

B. Chromium

C. Tungsten

D. Vanadium

✅ The correct answer is option A.

1166. __________ is not a heat treatment process.

A. Cyaniding

B. Pakerising

C. Austempering

D. Martempering