Thermal Expansion of Solids and Liquids MCQs

Prepare for Thermal Expansion of Solids and Liquids MCQs with verified questions, past-paper solutions, and conceptual explanations for CSS, PMS, FPSC, PPSC, and NTS examinations.

63 Solved Questions • 48 Mins Practice • Updated for 2026 Competitive Exams
MCQS
2026 Solved Edition · Updated October 2026 · Verified Editorial Standards

Welcome to the verified preparation module for Heat & Thermodynamics on McqsMind. This comprehensive set offers solved multiple-choice questions with answers, detailed explanations, and authentic past-paper style questions aligned with the latest syllabus of Heat & Thermodynamics (Physics).

100% Verified Answer Keys CSS, PMS, FPSC, PPSC, NTS Ready 2026/2027 Syllabus Guidelines

Direct Definition & Conceptual Scope

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Thermal Expansion of Solids and Liquids constitutes an essential examination topic within Physics, evaluating theoretical principles, historical context, and practical problem-solving applications. On MCQsMind, candidates practice verified past-paper solutions, conceptual breakdowns, and syllabus-aligned questions tailored for CSS, PMS, and competitive screening examinations.

Solved Questions

Practice with answers, explanations, and exam-focused revision notes.

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21
Which of the following statements is wrong?
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22
A light rod of length 2 m is suspended from the ceiling horizontally by means of two vertical wires of equal length tied to its ends. One wire is steel with cross-sectional area 1×10^-9 m^2 and the other is brass with cross-sectional area 2×10^-9 m^2. The position along the rod from the steel wire at which a weight may be hung to produce equal stress in both wires is
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23
A rod of length 30 cm made of metal A expands by 0.075 cm when its temperature is raised from 0°C to 100°C. Another rod of metal B having the same length expands by 0.045 cm for the same change of temperature. A third rod of the same length is composed of two parts, one of metal A and the other of metal B. This rod expands by 0.065 cm for the same change of temperature. The portion made of metal A has length
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24
42. A steel tape gives correct measurement at 20°C. A piece of wood is being measured with the steel tape at 0°C. The reading is 25 cm on the tape. The real length of the given piece of wood must be
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25
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26
A ring shaped piece of metal is heated. If the metal expands, the hole will
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27
Metal pipes used to carry water sometimes burst in the winter because
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28
A clock which keeps correct time at 25°C has a pendulum made of a metal. The temperature falls to 0°C. If the coefficient of linear expansion of the metal is 1.9 × 10^-5 °C^-1, then number of seconds the clock gains per day is
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30
54. A steel tape measures the length of a copper rod as 0.8 m when both are at 0°C. What is the length of the copper rod as measured by the steel tape when both are at 20°C? (α_steel = 1.2 × 10^-5/°C; α_cu = 1.7 × 10^-5/°C)
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Pedagogical Syllabus Blueprint

Thermal Expansion of Solids and Liquids MCQs: Preparation Strategy & Exam Blueprint

Examination Weightage & Commission Distribution

In Pakistan's premier competitive examinations—including the Federal Public Service Commission (FPSC General Recruitment & CSS MPT), Punjab Public Service Commission (PPSC Lecturer, Tehsildar & PMS Screening), KPPSC, SPSC, and BPSC—questions derived from Thermal Expansion of Solids and Liquids MCQs consistently constitute a decisive 10% to 25% weightage of the Heat & Thermodynamics paper. Testing agencies frequently evaluate both foundational factual recall and deeper analytical comprehension, requiring aspirants to master key dates, statutory articles, constitutional clauses, and thematic definitions.

High-Yield Conceptual Pillars & Distractor Analysis

Historical trend analysis across past five-year examination cycles demonstrates that examiner traps frequently involve closely matched numerical alternatives, chronologically contiguous treaties, and semantic subtleties in statutory phraseology. When preparing Thermal Expansion of Solids and Liquids MCQs, candidates must deliberately review the underlying rationale provided for every question rather than merely memorizing raw answer options. Understanding why incorrect distractors fail is the most reliable predictor of achieving top percentiles in computerized and optical mark recognition (OMR) screening tests.

Negative Marking Mitigation & Time Management Protocol

For examinations enforcing negative marking penalties (such as PPSC's 0.25-mark deduction per erroneous response or NTS gatekeeper quotas), an aggressive elimination technique must be deployed. Candidates should systematically rule out improbable options first to elevate probability thresholds from 25% to 50% or 100%. Allocating an average of 45 to 60 seconds per item during mock trials builds the psychological stamina and cognitive precision required to complete 100-question papers within official 90-minute time limits.

Recommended Reference Sources & Statutory Reading

To achieve definitive conceptual mastery in Physics, candidates are advised to cross-reference our solved explanations with primary gazettes, statutory texts, and canonical academic textbooks. Verifying controversial questions against authentic official repositories guarantees that prospective civil servants and professional candidates present incontestable answers during both optical paper evaluations and viva voce departmental interviews.