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MCQOPTIONS
This section includes 1232 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 601. |
in beam cross-sections,the axis along which the bending stresses are zero, is called as                       axis |
| A. | bending |
| B. | parallel |
| C. | perpendicula r |
| D. | neutral |
| Answer» E. | |
| 602. |
bend test is used to find |
| A. | hardness of material |
| B. | shear strength of material |
| C. | ductility of material |
| D. | all of the above |
| Answer» D. all of the above | |
| 603. |
bend test is also called as |
| A. | shear |
| B. | creep |
| C. | impact |
| D. | formability |
| Answer» E. | |
| 604. |
                       is a twisting action which results in shear stresses and strains |
| A. | bending |
| B. | torsion |
| C. | tension |
| D. | compression |
| Answer» C. tension | |
| 605. |
Tensional effect is observed in components like |
| A. | gears |
| B. | shafts |
| C. | axles |
| D. | all of the above |
| Answer» E. | |
| 606. |
torsion test is carried on machine |
| A. | fatigue testing |
| B. | universal testing |
| C. | creep testing |
| D. | none of the above |
| Answer» E. | |
| 607. |
                           is the point at which nominal surface stress occurs |
| A. | modulus of rigidity |
| B. | modulus of rupture |
| C. | modulus of elasticity |
| D. | modulus of toughness |
| Answer» C. modulus of elasticity | |
| 608. |
                         is the ratio of shear stress to shear strain |
| A. | modulus of rigidity |
| B. | modulus of rupture |
| C. | modulus of elasticity |
| D. | modulus of toughness |
| Answer» B. modulus of rupture | |
| 609. |
                         is the tangent to the angular distortion |
| A. | true strain |
| B. | engineering strain |
| C. | shear strain |
| D. | none of the above |
| Answer» D. none of the above | |
| 610. |
shear test is suitable for |
| A. | rivets |
| B. | crankpins |
| C. | welds |
| D. | all of the |
| Answer» E. | |
| 611. |
                 stress acts parallel to the plane |
| A. | bending |
| B. | tensile |
| C. | compressive |
| D. | shear |
| Answer» E. | |
| 612. |
in test, due to application of forces body slide relative to each other |
| A. | shear |
| B. | tensile |
| C. | compressive |
| D. | bend |
| Answer» B. tensile | |
| 613. |
during compression test, the point at which the material breaks into small pieces is called as |
| A. | yield stress |
| B. | ultimate stress |
| C. | compressive strength |
| D. | crushing strength |
| Answer» E. | |
| 614. |
if the ductile material testes in compression it shows |
| A. | bulging |
| B. | buckling |
| C. | bending |
| D. | both a and c |
| Answer» E. | |
| 615. |
a commonly used ratio for compression test is |
| A. | 3 |
| B. | 2 |
| C. | 4 |
| D. | 1 |
| Answer» C. 4 | |
| 616. |
during compression test, stress distribution is non-uniform because of |
| A. | internal friction |
| B. | non- homogeniety in material |
| C. | friction at the ends of specimen |
| D. | all of the above |
| Answer» E. | |
| 617. |
in compression test, the top and bottom faces of the specimen on which load is applied should be |
| A. | perpendicula r |
| B. | inclined |
| C. | perfectly parallel |
| D. | none of the above |
| Answer» D. none of the above | |
| 618. |
sheat stress is maximum at an angle of |
| A. | 60 |
| B. | 30 |
| C. | 45 |
| D. | 90 |
| Answer» D. 90 | |
| 619. |
hourglass fracture is observed in                        test |
| A. | compression |
| B. | tensile |
| C. | impact |
| D. | bend |
| Answer» B. tensile | |
| 620. |
in compression test with increase in the length to diameter ratio, compressive strength |
| A. | increases |
| B. | decreases |
| C. | remain same |
| D. | all of the above |
| Answer» C. remain same | |
| 621. |
in compression test, the length to diameter ratio is between |
| A. | 5 to 10 |
| B. | 10 to 20 |
| C. | 1.5 to 10 |
| D. | 5.5 to 15 |
| Answer» D. 5.5 to 15 | |
| 622. |
a compression test specimen has                        cross section |
| A. | square |
| B. | rectangular |
| C. | circular |
| D. | all of the above |
| Answer» E. | |
| 623. |
during compression test, the point at which fracture initiates in material is called as |
| A. | yield stress |
| B. | ultimate stress |
| C. | compressive stress |
| D. | crushing strength |
| Answer» D. crushing strength | |
| 624. |
compression test gives best results for                material |
| A. | cast iron |
| B. | comcrete block |
| C. | ceramic products |
| D. | all of the above |
| Answer» E. | |
| 625. |
compression test is carried on                        machine |
| A. | universal testing |
| B. | impact testing |
| C. | fatigue testing |
| D. | torsion testing |
| Answer» B. impact testing | |
| 626. |
                         are not used under compression type of loading |
| A. | ductile material |
| B. | brittle material |
| C. | any one of above |
| D. | none of the above |
| Answer» B. brittle material | |
| 627. |
                       shows the good behevoiur under compression type of loading |
| A. | ductile material |
| B. | brittle material |
| C. | any one of above |
| D. | none of the above |
| Answer» C. any one of above | |
| 628. |
an aluminium specimen is subjected to a stress of 160 /mm2 and corressponding modulus of resilience is 0.128 Mpa. Youngs modulus for aluminium is |
| A. | 200 gpa |
| B. | 125 gpa |
| C. | 150 gpa |
| D. | 100 gpa |
| Answer» E. | |
| 629. |
if total amount of energy absorbed by a steel specimen is 5 N-m for a volume of 10 x 10-3 mm3, the modulus of toughness is                       N/mm2 |
| A. | 5 x 10-4 |
| B. | 0.5 |
| C. | 2 x 103 |
| D. | 2 |
| Answer» C. 2 x 103 | |
| 630. |
a steel specimen is subjected to a stress of 300 Mpa. If E = 200 Gpa, modulus of resilience is |
| A. | 0.225 |
| B. | 7.5 x 10-4 |
| C. | 0.45 mpa |
| D. | 450 mpa |
| Answer» B. 7.5 x 10-4 | |
| 631. |
a concrete specimen of square cross section is subjected to a force of 100 kN. A side of square is 75 mm. if strain in concrete block is 1.5 x 10-3, the value of youngs modulus for concrete is |
| A. | 11.85 n/mm2 |
| B. | 11.85 kn/mm2 |
| C. | 11.85 n/m2 |
| D. | 11.85 kn/m2 |
| Answer» C. 11.85 n/m2 | |
| 632. |
tensile test was conducted on a steel specimen of diameter 20 mm and gauge length 75 mm. the gauge length and diameter during fracture are 95 mm and 12 mm respectively. If ultimate tensile load is 8000 kg, the UTS is |
| A. | 25.46 |
| B. | 249.8 |
| C. | 70.75 |
| D. | 693.9 |
| Answer» C. 70.75 | |
| 633. |
a steel specimen during the test subjected to a stress of 300 N/mm2 and strain 1.5 x 10-3. the modulus of elasticity of steel is |
| A. | 200 kpa |
| B. | 200 mpa |
| C. | 200 gpa |
| D. | 200 pa |
| Answer» D. 200 pa | |
| 634. |
tensile test was conducted on a steel specimen of diameter 20 mm and gauge length 75 mm. the gauge length and diameter during fracture are 95 mm and 12 mm respectively. If load at upper yield point is 500 kg, the upper yield stress is |
| A. | 15.9 |
| B. | 44.2 |
| C. | 36.6 |
| D. | 39.1 |
| Answer» B. 44.2 | |
| 635. |
an Aluminium plate of thickness 10 mm is subjected to a force 'F' . If yield strength of aluminium is 150 N/mm2 and width of plate is 60 mm, force F is kN |
| A. | 15 |
| B. | 4 |
| C. | 2.5 |
| D. | 90 |
| Answer» E. | |
| 636. |
tensile test was conducted on a steel specimen of diameter 20 mm and gauge length 75 mm. the gauge length and diameter during fracture are 95 mm and 12 mm respectively. Its elongation is |
| A. | 21% |
| B. | 27% |
| C. | 67% |
| D. | 40% |
| Answer» C. 67% | |
| 637. |
an aluminium tensile test specimen has reduction area of 44%. Its true strain is |
| A. | 0.44 |
| B. | 1.44 |
| C. | 0.044 |
| D. | 4.4 |
| Answer» B. 1.44 | |
| 638. |
a nickel stell has engineeringnstress of 610 N/mm2 . The reduction in area of cross section at the fracture was 38 %. The true stress in the material is |
| A. | 0.442 kn/mm2 |
| B. | 0.881 kn/mm2 |
| C. | 1.605 kn/mm2 |
| D. | 0.232 kn/mm2 |
| Answer» E. | |
| 639. |
a copper of thickness 10 mm is subjected to a lod of 10000 N. if yield strength of copper is 150 then, the width of plate is |
| A. | 0.9 cm |
| B. | 0.7 cm |
| C. | 0.5 cm |
| D. | 0.4 cm |
| Answer» C. 0.5 cm | |
| 640. |
if yield trength of metal plate is σ under load P then the width of plate is . Take 't' as thickness of plate |
| A. | p/σt |
| B. | σ/pt |
| C. | σt/p |
| D. | pt/σ |
| Answer» B. σ/pt | |
| 641. |
if engineering stress for a material is 250 Mpa and engineering strain is 0.2 , then true strain is |
| A. | 0.079 |
| B. | -0.22 |
| C. | 0.18 |
| D. | -1.61 |
| Answer» D. -1.61 | |
| 642. |
if engineering stress for a material is 250 Mpa and engineering strain is 0.2 , then true stress is |
| A. | 200 mpa |
| B. | 300 mpa |
| C. | 1250 mpa |
| D. | 50 mpa |
| Answer» E. | |
| 643. |
a 40 cm long rod of diameter 0.3 cm is subjected to 2 kN load. If the diameter of rod is reduced to 0.25 cm then true stressin rod is |
| A. | 0.4075 gpa |
| B. | 407.5 mpa |
| C. | 407.5 x 103 kpa |
| D. | all of the above |
| Answer» E. | |
| 644. |
a 40 cm long rod of diameter 0.3 cm is subjected to 2 kN load. If the diameter of rod is reduced to 0.25 cm then true strain in rod is |
| A. | 1.44 |
| B. | 0.2 |
| C. | 0.36 |
| D. | 0.167 |
| Answer» D. 0.167 | |
| 645. |
a 40 cm long rod of diameter 0.3 cm is subjected to 2 kn load. If the diamter of rod is reduced to 0.25 cm, then enginerring strain in the rod is |
| A. | 0.167 |
| B. | 0.2 |
| C. | 0.25 |
| D. | 0.3 |
| Answer» C. 0.25 | |
| 646. |
A 40 cm long rod of diameter 0.5 cm is loaded with 5 kN weight. The engineering stress in the rod is Mpa |
| A. | 255 |
| B. | 160 |
| C. | 250 |
| D. | 200 |
| Answer» B. 160 | |
| 647. |
                     are not used under tensile type loading |
| A. | ductile material |
| B. | brittle material |
| C. | any one of above |
| D. | none of the above |
| Answer» C. any one of above | |
| 648. |
                     shows good behavious under tensile type of loading |
| A. | ductile material |
| B. | brittle material |
| C. | any one of above |
| D. | none of the above |
| Answer» B. brittle material | |
| 649. |
cup and cone type fracture is the main characteristics of |
| A. | ductile material |
| B. | brittle material |
| C. | any one of above |
| D. | none of the above |
| Answer» B. brittle material | |
| 650. |
Cleavage fracture is the main characteristics of |
| A. | ductile material |
| B. | brittle material |
| C. | any one of above |
| D. | none of the above |
| Answer» C. any one of above | |