[3.01-1]
Anzahl=9
1=MC;Which definitions of force are correct?;A force is definitely determined by its point of application, its quantity and its direction;TRUE;A force is definitely determined by its point of application and its direction;FALSE;A force is definitely determined by its quantity and its direction;FALSE;A force can be moved on its action line.;TRUE;A force can be turned around its point of application without changing its action;FALSE;3
2=MC;Which answers are correct?;If several forces act from one point, these forces can be replaced by one resulting force.;TRUE;Forces can only be added, if their action lines are parallel.;FALSE;If the action lines of forces intersect these forces can be replaced by 1 resulting force.;TRUE;With 2 forces you cyn design a force triangle;FALSE;For an unlimited number of forces the resulting force can be found by a polygon of forces.;TRUE;4
3=MC;Which are the correct answers regarding the resolution of forces and equilibrium of forces.;Parallel forces cancel out each other.;FALSE;On a plane a force can only be uniquely resolved in two directions.;TRUE;When resolving forces into horizontal and vertical components, they are apparently couple wise opposite and of the same amount.;TRUE;Action lines for resolving a force can be turned around on a plane.;FALSE;There is no equilibrium of three and more forces, if a closed polygon of forces can be drawn.;FALSE;5
4=MC;Please mark the correct answers for moments and equilibrium.;The sum of moments must be larger than 1 to get an equilibrium for a member.;FALSE;Each force going through the center of rotation causes a moment.;FALSE;Any force not going with her action line through a position causes a moment at that position.;TRUE;The moment is the quotient of force and leverarm.;FALSE;Moments with the same amount but opposite direction cancel out each other.;TRUE;6
5=MC;Please mark the correct answers regarding bearings.;Moveable bearings can transmit moments.;FALSE;A fixed bearing has one degree of freedom as a moveable bearing has two degrees of freedom.;TRUE;A moveable bearing can only bear forces in one direction.;TRUE;A restraint can transmit horizontal and vertical forces and moments.;TRUE;Fixed bearings can transmit moments.;FALSE;8
6=MC;For determination of the degree of static determination the following answers are correct.;The degree of static determination can be determined with the formula n=a+z-3s.;TRUE;The degree of static determination can be determined with the formula n=3a-z+s.;FALSE;In statically determined system n = 0.;TRUE;If n < 0 , than the system is n-times statically indetermined.;FALSE;The support reactions of statically indetermined systems can be calculated alone with the 3 equations of equilibrium.;FALSE;11
7=MC;Actions are the reason for internal forces and deformations.;Actions can be classified into permanent actions, variable actions and exceptional actions.;TRUE;The characteristic values of the actions are the design values multiplied with the partial safety factor and the combination factor.;FALSE;The internal forces caused by the action Fd are defined as loading Sd.;TRUE;The characteristics of values of actions can be taken from standards.;TRUE;For bridges and other similar structures exceptional actions must not be considered.;FALSE;13
8=MC;Calculate the bearing forces if F-horizontal = 300 N and F-vertical = 400 N. The action force acts in the middle of the girder.;A-horizontal = A-vertical = 700 N, B-vertical = 0.;FALSE;A-horizontal = 300 N, A-vertical = 200 N, B-vertical = 200 N.;TRUE;A-horizontal = -400 N, A-vertical = 200 N, B-vertical = 200 N.;FALSE;A-horizontal = -250 N, A-vertical = 200 N, B-vertical = 200 N.;FALSE;A-horizontal = -300 N, A-vertical = 100 N, B-vertical = 400 N.;FALSE;5;frage3031_8.png
9=MC;Determine the number of bearing reactions and check if the system is statically determined, statically indetermined or moveable.;Moveable.;FALSE;Bearing reaction a = 5.;FALSE;Statically determined.;TRUE;Bearing reaction a = 4.;TRUE;Statically indetermined.;FALSE;11;frage_statisch_bestimmt.png

[3.01-2]
Anzahl=8
1=MC;For the ultimate stress analysis the following actions shall be considered:;The permanent actions G and in addition one of the unfavourable actions Qi.;TRUE;The permanent actions G and all unfavourable actions QI.;TRUE;The temporal actions G and all unfavourable permanent actions Qi.;FALSE;all actions considering the combination factor //y//.;FALSE;The permanent actions G, all unfavourable variable actions Qi and one exceptional action Fa.;TRUE;1
2=MC;What is correct regarding the sign of the internal force of the considered action?;An axial force is positive, if it causes tension at the positive section bank.;TRUE;Internal forces are negative, if they point towards the negative section bank in the positive axis direction and if they point towards the positive axis direction at the negative section bank.;TRUE;A bending moment is positive at the negative section bank if it causes tension at the dashed line.;TRUE;Internal forces are positive at the positive section bank and they are negative at a negative section bank.;FALSE;A shear force acts at a negative section bank, if its direction is upwards.;FALSE;2;
3=MC;Calculate the bearing reactions for the system.;A-horizontal = 25 kN, A-vertical = 25 kN, B-horizontal = -25 kN, B-vertical = -25 kN;TRUE;A-horizontal = 35 kN, A-vertical = 15 kN, B-horizontal = -15 kN, B-vertical = -35 kN.;FALSE;A-horizontal = 10 kN, A-vertical = 40 kN, B-horizontal = +25 kN, B-vertical = -25 kN.;FALSE;A-horizontal = 25 kN, A-vertical = 10 kN, B-horizontal = -35 kN, B-vertical = -25 kN;FALSE;A-horizontal = 25 kN, A-vertical = 10 kN, B-horizontal = +35 kN, B-vertical = +25 kN.;FALSE;4;system2.png
4=MC;For the calculation of design values the following comments are correct:;The characteristic action Qi,k has to be divided by the partial safety factor //g//F .;FALSE;The design value can be calculated by dividing the yielding strength fy,k by the partial safety factor //g//M.;FALSE;Instead of the variable actions the design value may also be calculated with the reduced permanent actions.;FALSE;The combination factor //Y// for the actions has to be multiplied by the partial safety factor //g//F and to be divided with the characteristic action.;TRUE;The combination factor //Y// for the actions has to be divided by the partial safety factor //g//M =1,1 and to be multiplied with the characteristic action.;FALSE;1
5=MC;Which of the following statements are correct?;Internal forces are the result of actions on structural members and are calculated with the design values of the actions.;TRUE;Internal forces are the axial forces and the shear forces.;FALSE;The axial force is the sum of all actions acting vertical on the left and right hand of the section bank.;FALSE;Stresses in the members can be calculated with the internal forces.;TRUE;Twists and deflections are no internal forces.;TRUE;2
6=MC;At the positive section bank are calculated the shown internal forces. What is the value of the axial force and the shear force at the negative section bank?;V = 19 kN;TRUE;N = 8,2 kN;FALSE;V = 11 kN;FALSE;N = 7 kN;TRUE;V = 12,6 kN;FALSE;3;Schnittufer.png
7=MC;At the negative section bank the following internal forces are calculated. what is the value of the bending moment at the positive section bank?;- 50 kNm;FALSE;- 46 kNm;FALSE;+ 46 kNm;TRUE;- 12 kNm;FALSE;+ 50 kNm;FALSE;3;Schnittufer2.png
8=MC;For the shown statical system the internal forces at section of the right section bank has to be calculated, which is the correct answer?;N = +7,07 kN;FALSE;V = -7,07 kN;FALSE;M = +15kNm;FALSE;M = -5kNm;TRUE;V = +5 kN;TRUE;3;Statisches System.png

[3.02-1]
Anzahl=9
1=MC;Which statements concerning stress //s// are correct?;The definition of a stress is force per length;FALSE; A stress is the action apportioned to a sectional area.;TRUE;The unit of stresses is N/mm² or MPa.;TRUE;The unit of stresses is GPa = 10³ Mpa.;TRUE;1 Pa corresponds to 100N/mm².;FALSE;2
2=MC;Where is the shear stress located the first index of a shear stresses //t// at a sectional area element  is x and the second index is y?;The direction of the stress is perpendicular to the sectional area.;FALSE;The direction of the stress is perpendicular to the y-axis and parallel to the z-axis.;FALSE; The direction of the stress is parallel to the y-axis and perpendicular to the x-axis.;TRUE;The stress is perpendicular to the axial stress and parallel to the y-axis.;TRUE;The stress shows into negative direction parallel to the x-axis and perpendicular to the y-axis.;FALSE;3;3_3_2.jpg
3=MC;The following applies for shear stresses at a cubic element:;A cube is in a state of equilibrium if there are two opposing shear stresses acting at parallel planes.;FALSE;Shear stresses can only be in a state of equilibrium in pairs.;FALSE;Shear stresses are positive if they are perpendicular to the axis perpendicular to the sectional area.;FALSE;Shear stresses are positive if they occur in sectional areas with an axis perpendicular to the sectional area showing into positive direction and if they also point into a positive direction.;TRUE;If a cube is influenced by shear stress it is deformed in the direction of stresses and transverse to the direction of stresses.;FALSE;3;frage3-03-3.gif
4=MC;Among other things material characteristics can be taken from stress-strain-diagrams.Which of the following statements are correct?;Young’s modulus is determined by dividing the stress difference by the angular change.;FALSE;The stress-strain diagram characterises the deformation behaviour of the material.;TRUE;Elastic deformations disappear after stressing.;TRUE;Plastic deformations disappear after stressing.;FALSE;Strength values used for the assessment of deformation behaviour.;FALSE;3;spannungdiagr.gif
5=MC;Please calculate the strain //e// of a rod if //D//l = 5mm and l = 1m.; //e// = 5 %.;FALSE; //e// = 0,5 %.;TRUE; //e// = 5 ‰.;TRUE; //e// = 0,05 %.;FALSE; //e// = 0,005 %;FALSE;12;
6=MC;A vertical action F = 10kN acts on a vertical steel wire (initial length 5m, diameter 5mm). Please calculate the elongation //D//l and the spring constant.;//D//l = 22,15 mm, C = 812,0 N/mm.;FALSE; //D//l = 7,15 mm, C = 703,0 N/mm.;FALSE; //D//l = 12,15 mm, C = 801,0 N/mm.;FALSE; //D//l = 12,15 mm, C = 823,0 N/mm.;TRUE; //D//l = 10,15 mm, C = 823,0 N/mm.;FALSE;13
7=MC;Characteristic values of materials are determined by uni-axial tension tests. Which of the following values can be determned?;Shearing modulus G [N/cm²];FALSE;Transversal contraction coefficient //m// [1];FALSE;Coefficient of thermal expansion //a//;FALSE;Strain //e// [%];TRUE;Young’s modulus E [N/mm²];TRUE;7
8=MC;Hooke’s law is regarded as the most simple constitutive relation. Which of the following  statements regarding this relation are right?;The deformations (strains) are proportional to the occurring stresses.;TRUE;The relation is the basis for the theory of plasticity.;FALSE;If a component shows remaining deformation the calculation has to be done.;FALSE;In the field of application of Hooke’s law no remaining deformations occur.;TRUE;According to power law, the so-called  Hooke’s line represents the amount of strain related to the stresses until reaching the proportional limit.;TRUE;9
9=MC;Which of the following characteristic values is used for the design of components?;Elongation limit Rp 0,2.;TRUE;Young’s modulus E.;FALSE;Strain //e//;FALSE;Fractile value of the modulus of transverse elasticity f(G,K).;FALSE;Yield stress ReH.;TRUE;9 

[3.02-2]
Anzahl=8
1=MC;Please determine the axial stress for beam 1 (A= 25mm • 200mm) resulting from an axial force N=100 and the axial stress for  beam 2 (A= 30mm • 250mm) resulting from an axial force N= 150 KN.;Axial stress beam 1 = 40 N/mm²;FALSE; Axial stress for beam  1 = 20 N/mm²;TRUE;Axial stress for beam 2 = 20 N/mm²;TRUE; Axial stress for beam  2 = 30 N/mm²;FALSE; Axial stress beam for 2 = 35 N/mm²;FALSE;7
2=MC;Which statements concerning bending stresses are correct?;Due to bending axial stresses with positive and negative signs simultaneously occur in the sectional area.;TRUE;Due to replacement of a bending moment by a couple of forces acting in the top chord and the bottom chord the represented bending moment causes a compressive force in the top chord and a tensile force in the bottom chord.;TRUE;Any moment can be replaced by a couple of forces.;TRUE;Bending moments and axial forces cause different stresses in a component. The resulting stresses are determined by adding of the stress values.;FALSE;Bending moments cause shear stresses in a component.;FALSE;2;moment.png
3=MC;Which stresses can be caused by shear forces?;Axial stresses perpendicular to the corresponding sectional area.;FALSE;Shear stresses during simultaneous bending.;TRUE;Shear stresses, if a couple of equal, opposite forces nearly in one plane, stress a sectional area evenly.;TRUE;Residual stresses.;FALSE;Bending stresses at a beam.;FALSE;5
4=MC;Please determine the second order moment of area ( moment of inertia) and the maximum stress (My = 1000kNm) of the beam below.; //s// = 79,3 N/mm².;TRUE;Iy = 454933 [cm²]².;FALSE;Iy = 544933 [cm²]².;TRUE; //s// = 320 N/mm².;FALSE; //s// = 59,3 N/mm².;FALSE;8;eigenflaechenmoment.png
5=MC;Please determine the statical moment for the verification of shear stresses at the centroidal axis.;Sy =5211,5 cm³.;FALSE;Sy =4702,6 cm³.;FALSE;Sy =4902,4 cm³.;TRUE;Sy =3902,42 cm³.;FALSE;Sy =7902,45 cm³.;FALSE;12;statisches_moment.png
6=MC;The amount of stresses occuring in a component is related to which of the following variables.;Shape of the component. (e.g. I-section or T-section);TRUE;The used material.;FALSE;Actual Young’s modulus;FALSE;Amount of actions.;TRUE;Arrangement of components related to the direction of actions.;TRUE;11
7=MC;Which of the following statements are correct regarding the determination of stresses?;Axial stresses caused by bending moments are determined by means of the sectional area A;FALSE;The calculation is done by means of statical moments during pure compression.;FALSE;Shear stresses resulting from shear forces can be determined for I-sections by means of the average moment of inertia of the web.;FALSE; For the determination of axial stresses  it is necessary to know the moment of inertia and the height of the component.;FALSE;Shear stresses resulting from shear forces can be determined by means of the statical moments, the moment of inertia I and the material thickness at analysed point of the section.;TRUE;7
8=MC;Which of the following statements are correct regarding the stressing by shear forces?;Shear forces always lead to evenly distributed shear stresses.;FALSE;If a couple of equal, opposite forces act nearly in one plane and stress a sectional area evenly then shear forces result.;TRUE;The amount of shear stresses is related to the shape of the section and the arrangement with regard to the direction of actions.;TRUE;Stress due to shear forces are designated as axial bending stresses if shear forces causes simultaneous bending moments.;FALSE;For a welded symmetrical I-section the maximum shear stresses resulting from shear stresses resulting from shear forces occur in the neutral axis;TRUE;4

[3.03-1]
Anzahl=9
1=MC;The welded joint is the function of members or the edges of members that are to be joined or have been joined. What kind of welding joint represents the following symbol?;Butt joint;FALSE;Parallel joint;FALSE; Multiple joint;FALSE;Cruciform joint;TRUE;Corner joint;FALSE;1;Doppel-T-Stoß.png
2=MC;What is the ratio of weld volume of single fillet weld a = 6mm and a double fillet weld 2 x a = 3mm?;4 : 1;FALSE;1 : 1;FALSE;1,5 : 1;FALSE;2 : 1;TRUE;2,5 : 1;FALSE;6;
3=MC; How large can become the permissible difference of workpiece thicknesses during statical loading without bevelling of the thicker plate?;<= 3mm;FALSE;<= 5mm;FALSE;<= 10mm;TRUE; <= 15%;FALSE;<= 50%;FALSE;3;Statische-Belastung.png
4=MC; How large can become the permissible difference of workpiece thicknesses during dynamical loading without bevelling of the thicker plate?;<= 3mm;TRUE;<= 5mm;FALSE;<= 10mm;FALSE; <= 15%;FALSE;<= 50%;FALSE;3;Statische-Belastung.png
5=MC; The type of joint preparation of butt joints is related to:;used material;TRUE;existing workpiece thickness;TRUE;cutting velocity of the flame cutting equipment;FALSE;provided welding process;TRUE;used filler metals;FALSE;2;
6=MC;The stringer bead technique is used for the weld composition if:;it is required by the weld position.;TRUE;the welder wants to reach a higher melt-off efficiency.;FALSE;the heat input into the workpiece should be low.;TRUE;weld position PA is stipulated.;FALSE;welding has to be done in confined spaces.;FALSE;1;
7=MC;Under which conditions can the weld quality be verified according to DIN 18800-1:1990-11?;If at least 10 % of welds is tested by ultrasonic or radiographic testing method and found in perfect order, taking into account all the welding work done.;TRUE;Only if a radiographic or ultrasonic inspections shows that 100% of welds are in perfect order.;FALSE; Only if a radiographic or ultrasonic inspections shows that at least 20% of welds are in perfect order.;FALSE; Only if a radiographic or ultrasonic inspections shows at least 50% of welds are in perfect order.;FALSE;If a surface crack inspection has been executed by dye penetrant test.;FALSE;4
8=MC;Which limitation of design weld length is valid for direct connections between splice plates and linear members?;min a = 5mm;FALSE;max l >= 60 • a;FALSE;max l <=150 • a;TRUE;min l >= 6 • a>= 30mm;TRUE;max a = 10mm;FALSE;8
9=MC;Which of the following statements about the execution of a weld are correct?;Welds with a root concavity are not allowed for dynamically loaded components.;FALSE;Partial penetration welds are allowed for dynamically loaded components;FALSE;Butt welds are only allowed for dynamically loaded components.;FALSE;Fillet weld are only allowed for dynamically loaded components.;FALSE;Welds with excessive penetration are not allowed as a rule for dynamically loaded components.;TRUE;4

[3.03-2]
Anzahl=8
1=MC;Using the symbolic representation for asymmetrical welds the arrow line shall point towards:;the non-vertical fusion face.;TRUE;the vertical fusion face.;FALSE; the plate which has te be prepared.;TRUE;The position of the arrow line with respect to the weld is of no special significance.;FALSE;The arrow line points from the weld to the reference line.;FALSE;3
2=MC;What is the position of the fillet weld  a = 4mm for the symbolic representation of a double fillet weld according to DIN EN 22553 (ISO 2552) below?;On the to left corner (1).;TRUE;On the top right corner (2).;FALSE;Down on the left (3).;FALSE;Down on the right.;FALSE;Down on the left and right (3+4).;FALSE;4;Doppelkehlnaht.png
3=MC;The represented symbol designates a:;Double-V butt weld?;FALSE;Single-V butt weld with flat surface?;FALSE;Double-V butt weld with broad root face?;FALSE;Single-bevel butt weld with broad root face and flat surface?;FALSE;Steep-flanked single-V butt weld?;TRUE;1;Steilflankennaht.png
4=MC;Wich of the following symbolic representations is correct for the weld down on the left?;1;FALSE;2;TRUE;1 and 3;FALSE;none;FALsE;2 and 3;FALSE;3;Darstellung.png
5=MC;During symbolic representation of welded joints complementary indications can be given between the two branches of a fork at the end of the reference line, additional to the indications for the type of weld and teh dimensions. These are:;the working position?;TRUE;teh executing welder?;FALSE;the type of welding equipment?;FALSE;the acceptance level according to DIN EN 25817 (ISO 5817)?;TRUE;the welding process;TRUE;7
6=MC;Wich of the displayed symbolic representations of welded joints below are correct?;1 and 2;FALSE; 2;FALSE;3;TRUE;none;FALSE;1 and 3;FALSE;3;Schweissdarstellungen.png
7=MC;What is the designation of symbolic representation of the weld below?;Double-V butt weld;TRUE;X weld;FALSE;Double-bevel butt weld;FALSE;K weld;FALSE;Double-V butt weld with broad root face;FALSE;1;DV-Naht.png
8=MC;Which of the following statements about the single-bevel butt weld with broad root face (HY weld) below are correct?;Ref. 4 designates the joint width of the weld.;FALSE;Ref. 4 designates the root gap of the weld.;TRUE;Ref. 5 designates the plate thickness and the joint thickness of the weld.;TRUE;Ref. 5 designates the plate thickness and the depth of the root face of the weld.;FALSE;Ref. 2 shows to the fusion  face;FALSE;2;Fragen.png