Engineering & Architecture Admissions - Exam Prep Guide

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Engineering & Architecture Admissions MCQ & Objective Questions

Engineering & Architecture Admissions play a crucial role in shaping the future of aspiring students in India. With the increasing competition in entrance exams, mastering MCQs and objective questions is essential for effective exam preparation. Practicing these types of questions not only enhances concept clarity but also boosts confidence, helping students score better in their exams.

What You Will Practise Here

Key concepts in Engineering Mathematics
Fundamentals of Physics relevant to architecture and engineering
Important definitions and terminologies in engineering disciplines
Essential formulas for solving objective questions
Diagrams and illustrations for better understanding
Conceptual theories related to structural engineering
Analysis of previous years' important questions

Exam Relevance

The topics covered under Engineering & Architecture Admissions are highly relevant for various examinations such as CBSE, State Boards, NEET, and JEE. Students can expect to encounter MCQs that test their understanding of core concepts, application of formulas, and analytical skills. Common question patterns include multiple-choice questions that require selecting the correct answer from given options, as well as assertion-reason type questions that assess deeper comprehension.

Common Mistakes Students Make

Misinterpreting the question stem, leading to incorrect answers.
Overlooking units in numerical problems, which can change the outcome.
Confusing similar concepts or terms, especially in definitions.
Neglecting to review diagrams, which are often crucial for solving problems.
Rushing through practice questions without understanding the underlying concepts.

FAQs

Question: What are the best ways to prepare for Engineering & Architecture Admissions MCQs?
Answer: Regular practice of objective questions, reviewing key concepts, and taking mock tests can significantly enhance your preparation.

Question: How can I improve my accuracy in solving MCQs?
Answer: Focus on understanding the concepts thoroughly, practice regularly, and learn to eliminate incorrect options to improve accuracy.

Start your journey towards success by solving practice MCQs today! Test your understanding and strengthen your knowledge in Engineering & Architecture Admissions to excel in your exams.

JEE Main

Q. Which of the following has a tetrahedral shape?

A. CH4
B. C2H4
C. NH3
D. H2O

Solution

CH4 has a tetrahedral shape due to the sp3 hybridization of the carbon atom.

Correct Answer: A — CH4

Q. Which of the following has a trigonal bipyramidal geometry?

A. PCl5
B. NH3
C. H2O
D. CO2

Solution

PCl5 has five bonding pairs and no lone pairs, resulting in a trigonal bipyramidal geometry.

Correct Answer: A — PCl5

Q. Which of the following has a trigonal planar geometry?

A. CH4
B. BF3
C. NH3
D. H2O

Solution

BF3 has a trigonal planar geometry due to sp2 hybridization of boron.

Correct Answer: B — BF3

Q. Which of the following has an incomplete d-subshell?

A. Scandium
B. Titanium
C. Vanadium
D. Chromium

Solution

Chromium (Cr) has an electronic configuration of [Ar] 4s1 3d5, which means it has an incomplete d-subshell.

Correct Answer: D — Chromium

Q. Which of the following has sp hybridization?

A. C2H2
B. C2H4
C. CH4
D. NH3

Solution

C2H2 has sp hybridization, with a triple bond between the two carbon atoms.

Correct Answer: A — C2H2

Q. Which of the following has the electronic configuration 1s2 2s2 2p6 3s2 3p6?

A. Neon
B. Argon
C. Krypton
D. Xenon

Solution

Argon has 18 electrons, and its electronic configuration is 1s2 2s2 2p6 3s2 3p6.

Correct Answer: B — Argon

Q. Which of the following has the electronic configuration ending in 4p5?

A. Br
B. Cl
C. I
D. At

Solution

Bromine (Br) has the atomic number 35, and its configuration ends in 4p5.

Correct Answer: A — Br

Q. Which of the following has the electronic configuration of [Kr] 5s2 4d10 5p5?

A. Iodine
B. Xenon
C. Bromine
D. Astatine

Solution

The element with the configuration [Kr] 5s2 4d10 5p5 is Astatine.

Correct Answer: D — Astatine

Q. Which of the following has the electronic configuration [Kr] 5s2 4d10 5p5?

A. Iodine
B. Bromine
C. Astatine
D. Tellurium

Solution

The configuration [Kr] 5s2 4d10 5p5 corresponds to Astatine.

Correct Answer: C — Astatine

Q. Which of the following has the electronic configuration [Xe] 4f14 5d10 6s2?

A. Pb
B. Hg
C. Rn
D. Uuo

Solution

Mercury (Hg) has the electronic configuration [Xe] 4f14 5d10 6s2.

Correct Answer: B — Hg

Q. Which of the following has the electronic configuration [Xe] 6s2 4f14 5d10?

A. Lead
B. Bismuth
C. Radon
D. Plutonium

Solution

Bismuth (Bi) has the electronic configuration [Xe] 6s2 4f14 5d10.

Correct Answer: B — Bismuth

Q. Which of the following has the highest boiling point?

A. H2O
B. CH4
C. NH3
D. CO2

Solution

Water has the highest boiling point due to strong hydrogen bonding between its molecules.

Correct Answer: A — H2O

Q. Which of the following has the highest bond order?

A. N2
B. O2
C. F2
D. C2

Solution

N2 has the highest bond order of 3 among the given options.

Correct Answer: A — N2

Q. Which of the following has the highest electronegativity?

A. Fluorine
B. Oxygen
C. Nitrogen
D. Chlorine

Solution

Fluorine has the highest electronegativity of all elements.

Correct Answer: A — Fluorine

Q. Which of the following has the highest energy electron configuration?

A. 1s2 2s2 2p6 3s2 3p6
B. 1s2 2s2 2p6 3s2 3p5
C. 1s2 2s2 2p6 3s2 3p4
D. 1s2 2s2 2p6 3s2 3p3

Solution

The configuration 1s2 2s2 2p6 3s2 3p5 (Chlorine) has the highest energy due to the presence of an unpaired electron.

Correct Answer: B — 1s2 2s2 2p6 3s2 3p5

Q. Which of the following has the highest energy electron in the 4p subshell?

A. Ar
B. Kr
C. Se
D. Br

Solution

Selenium (Se) has the highest energy electron in the 4p subshell with the configuration [Ar] 4s2 3d10 4p4.

Correct Answer: C — Se

Q. Which of the following has the highest enthalpy of formation?

A. O2(g)
B. H2(g)
C. C(s)
D. CO2(g)

Solution

CO2(g) has a higher enthalpy of formation compared to the elements in their standard states.

Correct Answer: D — CO2(g)

Q. Which of the following has the highest entropy at 25°C?

A. Ice
B. Water
C. Steam
D. All have the same entropy

Solution

Steam has the highest entropy at 25°C because it is in the gaseous state, which has more disorder compared to solid (ice) and liquid (water).

Correct Answer: C — Steam

Q. Which of the following has the highest entropy at 298 K?

A. Ice (solid H2O)
B. Liquid water (H2O)
C. Water vapor (H2O(g))
D. None of the above

Solution

Water vapor has the highest entropy because gases have greater disorder compared to liquids and solids.

Correct Answer: C — Water vapor (H2O(g))

Q. Which of the following has the highest entropy at room temperature?

A. Solid NaCl
B. Liquid water
C. Water vapor
D. Ice

Solution

Water vapor has the highest entropy due to its gaseous state, which has more disorder compared to solids and liquids.

Correct Answer: C — Water vapor

Q. Which of the following has the highest entropy?

A. Ice at 0 °C
B. Water at 0 °C
C. Water vapor at 100 °C
D. Water at 100 °C

Solution

Water vapor at 100 °C has the highest entropy due to its gaseous state, which has more disorder compared to the liquid and solid states.

Correct Answer: C — Water vapor at 100 °C

Q. Which of the following has the highest first ionization energy?

A. Potassium
B. Calcium
C. Magnesium
D. Aluminum

Solution

Magnesium has the highest first ionization energy among the given elements.

Correct Answer: C — Magnesium

Q. Which of the following has the highest freezing point depression?

A. 0.1 molal NaCl
B. 0.1 molal KBr
C. 0.1 molal CaCl2
D. 0.1 molal glucose

Solution

CaCl2 dissociates into 3 ions (Ca2+ and 2 Cl-), resulting in the highest freezing point depression.

Correct Answer: C — 0.1 molal CaCl2

Q. Which of the following has the highest ionization energy?

A. Na
B. Mg
C. Al
D. Si

Solution

Silicon (Si) has the highest ionization energy among the given elements due to its higher nuclear charge and smaller atomic radius.

Correct Answer: D — Si

Q. Which of the following has the highest standard molar entropy (S°) at 298 K?

A. H2(g)
B. O2(g)
C. N2(g)
D. H2O(l)

Solution

H2O(l) has a higher standard molar entropy than the diatomic gases due to its molecular complexity and interactions.

Correct Answer: D — H2O(l)

Q. Which of the following has the least number of significant figures?

A. 0.00340
B. 0.0045
C. 0.045
D. 0.45

Solution

0.045 has only 2 significant figures.

Correct Answer: C — 0.045

Q. Which of the following has the lowest bond energy?

A. N2
B. O2
C. F2
D. Cl2

Solution

F2 has the lowest bond energy due to the repulsion between the lone pairs on the fluorine atoms.

Correct Answer: C — F2

Q. Which of the following has the lowest bond order?

A. O2
B. F2
C. N2
D. He2

Solution

He2 has a bond order of 0, calculated as (2 bonding electrons - 2 antibonding electrons)/2 = 0.

Correct Answer: D — He2

Q. Which of the following has the lowest vapor pressure?

A. Pure water
B. 0.1 M NaCl solution
C. 0.1 M KCl solution
D. 0.1 M glucose solution

Solution

The 0.1 M NaCl and KCl solutions will have lower vapor pressures than pure water due to the presence of solute particles.

Correct Answer: B — 0.1 M NaCl solution

Q. Which of the following has the smallest moment of inertia about an axis through its center?

A. Solid cylinder
B. Hollow cylinder
C. Solid sphere
D. Hollow sphere

Solution

The solid sphere has the smallest moment of inertia compared to the other shapes for the same mass and radius.

Correct Answer: C — Solid sphere

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