MCQsDrive | MCQsDrive

Chemical Engineering Mcqs 9594 MCQs [All-Courses]

Chemical Engineering MCQs designed for job test and interview preparation, particularly for fresh graduates, students, and candidates appearing in competitive exams. These multiple-choice questions cover important topics such as the fundamentals of chemical engineering, chemical processes, chemical reactions, process control, and instrumentation, along with other key concepts in the field.

The ratio of atomic radius to its nuclear radius is about___________________?

A 105

B 108

C 1012

D 1015

Review Detailed Answer

Correct Answer: 105

Isotopes of an element have different_____________________?

A Mass number

B Electronic configuration

C Nuclear charge

D Chemical properties

Review Detailed Answer

Correct Answer: Mass number

A moderator _____________ the neutrons?

A Slows down

B Absorbs

C Accelerates

D Reflects

Review Detailed Answer

Correct Answer: Slows down

The atomic number of a radioactive element is not changed, when it emits _____________ rays?

A α

B β

C γ

D α & β

Review Detailed Answer

Correct Answer: γ

Extraction of uranium from its ore is done by ______________ method?

A Chemical

B Pyrometallurgical

C Physical beneficiation

D Electrometallurgical

Review Detailed Answer

Correct Answer: Chemical

The most abundant isotope of natural uranium is ___________________?

A 92U238

B 92U235

C 92U234

D None of these

Review Detailed Answer

Correct Answer: 92U238

A boiling water reactor is the one, in which the_______________________?

A Coolant water is allowed to boil in the core of the reactor

B Coolant water, after being heated in the reactor core, generates steam in a boiler

C Pressurised water is pumped into the core

D Fuel and the coolant are thoroughly mixed to form a homogeneous solution

Review Detailed Answer

Correct Answer: Coolant water is allowed to boil in the core of the reactor

Heavy water (D2O) in a nuclear reactor serves as a_______________?

A Coolant

B Moderator

C Both A. & B.

D Neutron absorber

Review Detailed Answer

Correct Answer: Both A. & B.

Pick out the wrong statement?

A α-particle emission from a radioactive element makes it electrically negative

B β-particle emission from a radioactive element makes it electrically positive

C A radioactive element having a half life period of 20 years will completely disintegrated in 40 years

D The disintegration constant of a radioactive isotope is independent of pressure, temperature or concentration

Review Detailed Answer

Correct Answer: A radioactive element having a half life period of 20 years will completely disintegrated in 40 years

Pick out the wrong statement?

A Atoms with same number of nucleons but different number of protons are called isobars

B Atoms with same number of protons but different number of nucleons are called isoters

C Out of α, β, and γ-rays, the one having maximum penetration power are γ-rays

D The product formed by emission of α-particle has mass number less by 4 units than the parent nuclide

Review Detailed Answer

Correct Answer: Atoms with same number of protons but different number of nucleons are called isoters

Showing 131 to 140 of 203 results

Contact Info

Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

The ratio of atomic radius to its nuclear radius is about___________________?

Isotopes of an element have different_____________________?

A moderator _____________ the neutrons?

The atomic number of a radioactive element is not changed, when it emits _____________ rays?

Extraction of uranium from its ore is done by ______________ method?

The most abundant isotope of natural uranium is ___________________?

A boiling water reactor is the one, in which the_______________________?

Heavy water (D2O) in a nuclear reactor serves as a_______________?

Pick out the wrong statement?

Pick out the wrong statement?