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#1. The shear stress in a fillet weld of throat a and length l under force F:
#2. In an air-conditioning process, dehumidification occurs when:
#3. The specific gas constant R for air is approximately:
#4. A worm gear drive provides:
#5. A particle moves on a circular path of radius 2 m at constant speed 6 m/s. The angular velocity is:
#6. The drag force on a body in a fluid is:
#7. The Marin factors for endurance limit include:
#8. The unit vector of v = 3i−4j is:
#9. Thermal strain in an unconstrained bar due to temperature change ΔT:
#10. The shear flow q in a thin-walled section is:
#11. Error propagation: if z = x + y and uncertainties are δx and δy, then δz =
#12. The Dittus-Boelter equation Nu = 0.023 Re^0.8 Pr^n applies to:
#13. In a simple truss, the relationship between members m, joints j is:
#14. In the ε-NTU method, NTU is:
#15. The Clausius inequality states:
#16. The product of inertia Ixy equals zero when:
#17. Area between y = x² and y = x from 0 to 1:
#18. The capitalized cost of a perpetual annual payment A at interest rate i is:
#19. A 50-lb weight hangs from two cables making 45° and 60° with the horizontal. Using equilibrium, T₁ (45° cable) is closest to:
#20. A 1000-N block on a 30° incline (μs=0.4) requires what force parallel to the incline to prevent sliding down?
#21. Kinetic friction force on a 50-kg block sliding on a surface with μk = 0.3:
#22. The reheat Rankine cycle adds:
#23. Fits in engineering (clearance, transition, interference) are defined by:
#24. The resistance to convection at a surface is:
#25. A 10-Ω and 15-Ω resistor in series carry 2 A. The total voltage is:
#26. Evaluate lim(x→0) sin(3x)/x.
#27. D’Alembert’s principle adds what fictitious force to create static equilibrium?
#28. A spline connection on a shaft:
#29. A chain drive compared to a belt drive:
#30. Moment of inertia of a triangle (base b, height h) about its base:
#31. The boundary layer thickness on a flat plate increases:
#33. The x-coordinate of the centroid of a composite area made of a 4×6 rectangle and a 3×3 square placed to its right (touching) is found using:
#34. Castigliano’s theorem relates:
#35. An engineer as expert witness should:
#36. A car rounds a flat curve of radius 100 m at 20 m/s. The centripetal acceleration is:
#37. E[X] for P(1)=0.3, P(2)=0.5, P(3)=0.2:
#38. A uniform disk of mass 5 kg and radius 0.2 m has I about its center:
#39. The free-body diagram of a body includes:
#40. For a Newtonian fluid, shear stress is:
#41. Pitting corrosion is:
#42. Heat transfer through a composite wall in series: the total resistance is:
#43. Ohm’s law in its basic form is:
#44. A beam’s curvature 1/ρ is related to bending moment by:
#45. An opportunity cost is:
#46. A closed-loop system with negative feedback has transfer function:
#47. The energy stored in an inductor L carrying current I is:
#48. When a pump operates at its best efficiency point (BEP):
#49. Titanium alloys are used in aerospace because:
#50. The back-work ratio of a gas turbine cycle:
#51. The view factor F₁₂ from surface 1 to surface 2 satisfies:
#52. A 0.5-kg ball is thrown upward at 10 m/s. At maximum height, its momentum is:
#53. Two mutually exclusive alternatives are compared using the incremental rate of return. The increment is justified if:
#54. For a very long fin with insulated tip, the temperature distribution:
#55. P(A)=0.6, P(B|A)=0.3. P(A∩B) =
#56. The maximum shear stress from Mohr’s circle equals:
#57. An accelerometer measures:
#58. The surface tension of a liquid:
#59. The factor of safety is:
#60. The capacitive reactance of a 50-μF capacitor at 60 Hz is closest to:
#61. In a vapor-compression refrigeration cycle, the compressor:
#62. A beam is statically determinate if it has:
#63. A Carnot engine produces 100 kW from a 800 K source rejecting heat at 400 K. The heat input rate:
#64. The surface roughness specification Ra represents:
#65. Entropy change for an ideal gas: Δs = cp ln(T₂/T₁) − R ln(P₂/P₁). For an isentropic process:
#66. The Rayleigh number Ra = Gr × Pr is used in:
#67. The Bode plot consists of:
#68. For a state of pure shear (σx=σy=0, τxy=τ), the principal stresses are:
#69. Public welfare obligation includes:
#70. For a mixture of ideal gases, the mole fraction yᵢ:
#71. Relative velocity: car A at 60 km/h east, car B at 40 km/h west. The velocity of A relative to B is:
#72. The eutectic reaction in a phase diagram is:
#73. Gauge pressure equals:
#74. A slab of mass m slides down a smooth incline of angle θ. The normal force is:
#75. A fixed support provides how many reactions in 2D?
#76. Cold working increases:
#77. Plagiarizing another engineer’s work violates:
#78. Pascal’s law states that:
#79. The Rockwell C hardness test uses:
#80. A disc brake’s torque capacity compared to a drum brake of similar size:
#81. Fatigue failure typically initiates at:
#82. The glass transition temperature Tg of a polymer is:
#83. Bearing L₁₀ life means:
#84. The power transmitted by a shaft at torque T and angular velocity ω:
#85. Forging produces parts with:
#86. A propped cantilever beam is:
#87. A trademark protects:
#88. The logarithmic decrement δ of a damped free vibration is related to ζ by:
#89. The lift coefficient C_L is defined as:
#90. The transmissibility ratio at ω/ωn = √2 and ζ = 0 is:
#91. The critical pressure ratio for air (γ=1.4) in isentropic flow:
#92. Double-declining balance depreciation for an asset worth $10,000 with 5-year life in year 1:
#93. The bandwidth of a measurement system is:
#94. Solve 2x+y=5, x−y=1:
#95. The heating value of a fuel is:
#96. The instantaneous center of zero velocity (IC) for a wheel rolling without slip is at:
#97. SE of mean for n=64, σ=16:
#98. If det(A)=4 for a 3×3 matrix, then det(2A) =
#100. For subsonic isentropic flow in a converging nozzle, the maximum Mach number at the throat is:
#101. The pressure variation in an incompressible fluid at rest:
#102. For a balanced 3-phase system, V_line = √3 × V_phase for a __ connection:
#103. The Hagen-Poiseuille equation for laminar flow gives:
#104. The mean effective pressure (MEP) of a cycle:
#105. The resultant of two forces of 100 N each at 60° to each other is:
#106. The fatigue stress concentration factor K_f is related to K_t by:
#107. An isochoric (constant volume) process has:
#109. The strain energy per unit volume for uniaxial stress σ in a linear elastic material:
#110. Type I error occurs when:
