McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Electrical Engineering .
| 601. |
cast iron, glass, concrete, bricks etc. shows type of fracture |
| A. | cleavege |
| B. | cupcone |
| C. | star |
| D. | irregular fibrous |
| Answer» A. cleavege | |
| 602. |
mild steel, gold, silver, copper, aluminium, etc. shows type of fracture |
| A. | cleavege |
| B. | cupcone |
| C. | star |
| D. | irregular fibrous |
| Answer» B. cupcone | |
| 603. |
Cleavage 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 | |
| 604. |
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» A. ductile material | |
| 605. |
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» A. ductile material | |
| 606. |
are not used under tensile type loading |
| A. | ductile material |
| B. | brittle material |
| C. | any one of above |
| D. | none of the above |
| Answer» B. brittle material | |
| 607. |
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» A. 255 | |
| 608. |
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» B. 0.2 | |
| 609. |
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» C. 0.36 | |
| 610. |
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» D. all of the above | |
| 611. |
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» D. 50 mpa | |
| 612. |
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» C. 0.18 | |
| 613. |
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» A. p/σt | |
| 614. |
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» B. 0.7 cm | |
| 615. |
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» D. 0.232 kn/mm2 | |
| 616. |
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» A. 0.44 | |
| 617. |
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» B. 27% | |
| 618. |
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» A. 15.9 | |
| 619. |
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» B. 249.8 | |
| 620. |
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» D. 90 | |
| 621. |
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» C. 200 gpa | |
| 622. |
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
|
| A. | 11.85 n/mm2 |
| B. | 11.85 kn/mm2 |
| C. | 11.85 n/m2 |
| D. | 11.85 kn/m2 |
| Answer» B. 11.85 kn/mm2 | |
| 623. |
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» A. 0.225 | |
| 624. |
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» B. 0.5 | |
| 625. |
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» D. 100 gpa | |
| 626. |
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» B. brittle material | |
| 627. |
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» A. ductile material | |
| 628. |
compression test is carried on machine |
| A. | universal testing |
| B. | impact testing |
| C. | fatigue testing |
| D. | torsion testing |
| Answer» A. universal testing | |
| 629. |
compression test gives best results for material |
| A. | cast iron |
| B. | comcrete block |
| C. | ceramic products |
| D. | all of the above |
| Answer» D. all of the above | |
| 630. |
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» C. compressive stress | |
| 631. |
a compression test specimen has cross section |
| A. | square |
| B. | rectangular |
| C. | circular |
| D. | all of the above |
| Answer» D. all of the above | |
| 632. |
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» C. 1.5 to 10 | |
| 633. |
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» B. decreases | |
| 634. |
hourglass fracture is observed in test |
| A. | compression |
| B. | tensile |
| C. | impact |
| D. | bend |
| Answer» A. compression | |
| 635. |
sheat stress is maximum at an angle of |
| A. | 60 |
| B. | 30 |
| C. | 45 |
| D. | 90 |
| Answer» C. 45 | |
| 636. |
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» C. perfectly parallel | |
| 637. |
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» D. all of the above | |
| 638. |
a commonly used ratio for compression test is |
| A. | 3 |
| B. | 2 |
| C. | 4 |
| D. | 1 |
| Answer» B. 2 | |
| 639. |
if the ductile material testes in compression it shows |
| A. | bulging |
| B. | buckling |
| C. | bending |
| D. | both a and c |
| Answer» D. both a and c | |
| 640. |
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» D. crushing strength | |
| 641. |
in test, due to application of forces body slide relative to each other |
| A. | shear |
| B. | tensile |
| C. | compressive |
| D. | bend |
| Answer» A. shear | |
| 642. |
stress acts parallel to the plane |
| A. | bending |
| B. | tensile |
| C. | compressive |
| D. | shear |
| Answer» D. shear | |
| 643. |
shear test is suitable for |
| A. | rivets |
| B. | crankpins |
| C. | welds |
| D. | all of the |
| Answer» D. all of the | |
| 644. |
is the tangent to the angular distortion |
| A. | true strain |
| B. | engineering strain |
| C. | shear strain |
| D. | none of the above |
| Answer» C. shear strain | |
| 645. |
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» A. modulus of rigidity | |
| 646. |
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» B. modulus of rupture | |
| 647. |
Tensional effect is observed in components like |
| A. | gears |
| B. | shafts |
| C. | axles |
| D. | all of the above |
| Answer» D. all of the above | |
| 648. |
is a twisting action which results in shear stresses and strains |
| A. | bending |
| B. | torsion |
| C. | tension |
| D. | compression |
| Answer» B. torsion | |
| 649. |
torsion test is carried on machine |
| A. | fatigue testing |
| B. | universal testing |
| C. | creep testing |
| D. | none of the above |
| Answer» D. none of the above | |
| 650. |
bend test is also called as |
| A. | shear |
| B. | creep |
| C. | impact |
| D. | formability |
| Answer» D. formability | |
Done Studing? Take A Test.
Great job completing your study session! Now it's time to put your knowledge to the test. Challenge yourself, see how much you've learned, and identify areas for improvement. Don’t worry, this is all part of the journey to mastery. Ready for the next step? Take a quiz to solidify what you've just studied.