HomeMMUP UPDA Qatar Engineer ExamQuestions 21–30
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MMUP UPDA Qatar Engineer Exam Exam Questions & Answers 2026 (21–30)

MMUP UPDA Qatar Engineer Exam practice questions and answers 2026. Tap an option to test yourself — you'll see the correct answer and a plain-English explanation for every question. Free, no login.

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  1. Q21Ashghal is the Qatari public authority responsible for:

    • APlanning, designing, and delivering public infrastructure (roads, drainage, infrastructure projects)
    • BRegulating engineering licenses and professional registration
    • CApproving building permits for private development
    • DOperating Qatar's electricity and water networks
    Show answer

    ✓ Correct answer: A. Planning, designing, and delivering public infrastructure (roads, drainage, infrastructure projects)

    Ashghal (Public Works Authority) is Qatar's government authority responsible for planning, designing, and delivering public infrastructure including roads, bridges, drainage, and coastal works.

  2. Q22Which of the following actions by an engineer would constitute a breach of professional ethics?

    • ADeclining a project outside their expertise
    • BReporting a public safety concern to authorities
    • CAccepting undisclosed gifts or commissions from contractors while acting as Engineer for the client
    • DRecommending a more cost-effective design solution
    Show answer

    ✓ Correct answer: C. Accepting undisclosed gifts or commissions from contractors while acting as Engineer for the client

    Accepting undisclosed gifts, payments or commissions from parties other than the client — while acting on behalf of the client — constitutes a bribe and breach of fiduciary duty, violating professional ethics codes.

  3. Q23The water-cement (w/c) ratio in concrete primarily affects:

    • AAggregate size and gradation
    • BSteel reinforcement yield strength
    • CConcrete strength and durability — lower w/c ratio gives higher strength
    • DConcrete setting time only
    Show answer

    ✓ Correct answer: C. Concrete strength and durability — lower w/c ratio gives higher strength

    The water-cement ratio is the most critical factor controlling concrete compressive strength and durability. Lower w/c ratio produces stronger, denser, more durable concrete (Abrams' Law).

  4. Q24For an ideal gas undergoing a reversible adiabatic process:

    • ATV = constant
    • BPV = constant
    • CP/T = constant
    • DPV^γ = constant
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    ✓ Correct answer: D. PV^γ = constant

    In a reversible adiabatic (isentropic) process: PV^γ = constant, where γ = Cp/Cv ≈ 1.4 for diatomic gases.

  5. Q25In surveying, a contour line on a map connects points of:

    • AEqual horizontal distance from a reference point
    • BEqual elevation above a datum
    • CEqual slope gradient
    • DEqual soil bearing capacity
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    ✓ Correct answer: B. Equal elevation above a datum

    A contour line is an isoline connecting all points of equal elevation (height) above a specified datum, used to represent terrain relief on a topographic map.

  6. Q26In a centrifugal pump, the developed head is proportional to the square of:

    • AFluid density
    • BFlow rate
    • CImpeller rotational speed
    • DPipe diameter
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    ✓ Correct answer: C. Impeller rotational speed

    Pump affinity laws: H ∝ N², Q ∝ N, P ∝ N³. Head is proportional to the square of rotational speed N.

  7. Q27Under QCS 2014, which of the following correctly defines 'Approved' in a contractual context?

    • AVerbally agreed by the Engineer
    • BAlways requiring written approval from the Engineer
    • CApproved by the Contractor's own QA team
    • DAccepted practice in Qatar without formal documentation
    Show answer

    ✓ Correct answer: B. Always requiring written approval from the Engineer

    QCS 2014 defines 'Approved' as always requiring written approval from the Engineer — verbal agreements are not sufficient for compliance purposes.

  8. Q28The maximum thermal efficiency of a heat engine operating between TH and TC is:

    • ATH/TC
    • BTC/TH
    • C(TC - TH)/TC
    • D(TH - TC)/TH (Carnot efficiency)
    Show answer

    ✓ Correct answer: D. (TH - TC)/TH (Carnot efficiency)

    Carnot efficiency η = 1 - TC/TH = (TH - TC)/TH. No real engine can exceed this theoretical maximum.

  9. Q29A Class 1 (compact) cross-section in EC3 steel design can develop:

    • AOnly 50% of the plastic moment
    • BFull plastic moment capacity (Mp) with sufficient rotation capacity
    • CUnlimited rotation without local buckling
    • DOnly elastic moment capacity
    Show answer

    ✓ Correct answer: B. Full plastic moment capacity (Mp) with sufficient rotation capacity

    A Class 1 section can develop full plastic moment resistance (Mp) and has sufficient rotation capacity for plastic hinge formation without local buckling.

  10. Q30Under Qatar Law No. 2 of 2014, how long is an engineering consultancy firm's license valid?

    • A1 year
    • B3 years
    • C5 years
    • D2 years
    Show answer

    ✓ Correct answer: D. 2 years

    Engineering consultancy firm licenses are valid for 2 years under Qatar Law No. 2 of 2014.

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