FE Conceptual Problems Actual Real Practice Exam Updated Questions And Correct Answers.

In a hydraulic system, the ratio of the change in stored volume to the change in pressure is known as the fluid (A) inductance (B) impedance (C) compliance (D) inertance - correct answer C Which formula is NOT used to calculate pipe wall thickness in a hydraulic mechanism? (A) Boardman Formula (B) Barlow Formula (C) Lame formula (D) Joukowsky formula - correct answer D Which type of valve is represented by the fluid power circuit symbol shown? O/ (A) nonreturn valve (B) pressure reducing valve (C) solenoid-actuated servo valve (D) shut-off - correct answer A A flexible hose is pressurized to more than 1.7 MPa. What is most nearly the working pressure when taken as a percentage of the burst pressure? (A) 5.0% (B) 10% (C) 25% (D) 50% - correct answer C As it relates to hydraulic components, what does the acronym NPTF mean? (A) Non-pressurized Torque Fitting (B) New Pipe Thermal Fitting (C) National Pipe Thread for Fuel (D) Negative Pressure Transfer Fitting - correct answer C Generally, what is the flare angle for flare fittings used for high-pressure applications? (A) 30 Degrees (B) 37 Degrees (C) 45 Degrees (D) 60 Degrees - correct answer B Which of the following hydraulic components generally determines the pressure at which the hose can operate? (A) covering (B) reinforcement (C) end fitting (D) tubing - correct answer B Which of the following fitting types does NOT require O-rings? (A) bossed (B) flared (C) flat-faced (D) flanged - correct answer B What are the basic components of a hydraulic system? I. fluid II. reservoir III. pump IV. lines V. valves VI. actuator (A) I, II, III, and IV (B) III, V, and VI (C) III, IV, V, and VI (D) I, II, III, IV, V, and VI - correct answer D Which of the following components is NOT part of a pneumatic system? (A) pump (B) line (C) valve (D) actuator - correct answer A In an existing pneumatic application, a larger force is required to overcome increase friction in an aging component. The most likely method of obtaining a larger force is increasing the (A) working pressure (B) cylinder size (C) tubing/line diameter (D) actuator stroke length - correct answer B Which pressure vessel RT marking designation indicates a joint efficiency of 0.85? (A) RT-1 (B) RT-2 (C) RT-3 (D) RT-4 - correct answer C Which nameplate marking indicates a pressure vessel safety valve? (A) V (B) NV (C) UM (D) UV - correct answer D In a pressure vessel, a type 2 weld joint is a (A) double full-fillet lap joint (B) single-welded butt joint with a backing strip (C) double-welded butt joint (D) single full-fillet lap joint without plug welds - correct answer B As it applies to pressure vessels designed in accordance with the ASME Boiler and Pressure Vesel Code (BPVC), what is a major difference between shakedown and ratcheting? (A) Shakedown is elastic, and ratcheting is plastic (B) Shakedown is temporary, and ratcheting is permanent. (C) Shakedown is static, and ratcheting is progressive. (D) Shakedown is thermal, and ratcheting is mechanical - correct answer C The preferred fluid used in the hydrostatic testing of boilers and pressure vessels is (A) nitrogen (B) compressed air (C) water (D) hydraulic oil - correct answer C Which marking would be applied to a power boiler designed in accordance with the BPVC? (A) S (B) A (C) E (D) M - correct answer A What is the name of the feature used to facilitate cleaning the inside of a water boiler? (A) inspection plate (B) flange (C) nozzle (D) handhole - correct answer D It is desired to choose a resistance temperature detector (RTD) transducer for a measurement. The actual value of the temperature is not important because the initial temperature is known by other means, but the change in temperature as the test item is heated is important. Which statement is true about the selection of the RTD? (A) The precision is important, and the accuracy is not important (B) The accuracy is important, and the precision is not important. (C) Neither the accuracy nor the precision is important. (D) Both accuracy and precision are important. - correct answer A A stress-strain diagram is usually created by? (A) resilience test (B) rotating beam test (C) ductility test (D) tensile test - correct answer D What is the term for the ratio of stress to strain below the proportional limit? (A) modulus of rigidity (B) Hooke's constant (C) Poisson's Ratio (D) Young's modulus - correct answer D What do impact tests determine? (A) hardness (B) yield strength (C) toughness (D) creep strength - correct answer C Which of the following statements regarding the ductile-to-brittle transition temperature us true? I. It is important for structures used in cold environments. II. It is the point at which the size of the shear lip or tearing rim goes to zero. III. It is the temperature at which 20 J of energy causes a failure in a charpy V-notch specimen of standard dimensions (A) I only (B) I and II (C) I and III (D) II and III - correct answer C Which of the following characteristics describes martensite? I. high ductility II. formed by quenching austenite III. high hardness (A) I only (B) I and III (C) I and III (D) II and III - correct answer D What is the hardest form of steel? (A) pearlite (B) ferrite (C) bainite (D) martensite - correct answer D Which of the following processes can increases the deformation resistance of steel? I. tempering II. hot working III. adding alloying elements