MME 201 CBT PRACTICE TEST

Ace/Undergragra February 9, 2024

0 743 1 minute read

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Take your time to read instructions before taking this test.

There are 40 questions which you are to answer in 15 minutes that gives you roughly 30 seconds per question.

If you can get at least 60%, you can be rest assured that you’ll ace MEE 203 exam

In a normal exam you will be asked between 40 – 60 questions but I only arranged 40 questions

Note

Do not be in a hurry to answer the questions

Do not waste time on a question you don’t know

Move as fast as possible and starting with questions that don’t have calculation first to save time

Always crosscheck

Don’t be in a hurry to submit, you are not in a competition

Don’t be scared. Getting an A is easy

Don’t be over confident, you can end up a D, E or F. Calm your blood, no be only you sabi book

Please do well to use our comment box incase there’s a message you want to pass to us

70 – 100 A

60 – 69 B

50 – 59 C

45 – 49 D

40 – 44 E

0 – 39 F

I wish you success

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Created on February 07, 2024 By

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MME 201

1 / 40

1. Which of the following test are done to find out the mechanical behavior of ceramics?

A. Tensile test

B. Compressive test

C. Shearing test

D. Transverse bending test

2 / 40

2. Chilled cast iron has

A. A very high percentage of graphite

B. Graphite as its basic constituent of composition

C. No graphite

D. A low percentage of graphite

3 / 40

3. Cast iron has
A.
B.
C.

A. All the options

B. High tensile strength

C. Its elastic limit close to the ultimate breaking strength

D. High ductility

4 / 40

4. In compression, a prism of brittle material will break

A. By crushing into thousands of pieces

B. By forming a bulge

C. In direction perpendicular to application of load

D. By shearing along oblique plane

5 / 40

5. The ultimate tensile strength of low carbon steel by working at a high strain rate will

A. Remain constant

B. Increase

C. First increase and then decrease

D. Decrease

6 / 40

6. Which of the following cannot be used as bio-materials?

A. None of the options

B. Ceramics

C. Polymers

D. Metals

7 / 40

7. Slow plastic deformation of metals under a constant stress is known as

A. Creep

B. Endurance

C. Plastic deformation

D. Fatigue

8 / 40

8. What is shape of a stress strain curve for ceramics?

A. Parabola

B. Inverted parabola

C. Straight line

D. Hyperbola

9 / 40

9. The ultimate tensile strength and yield strength of most of the metals, when temperature falls from 0 to -150°C will

A. First increase and then decrease

B. Remain same

C. Increase

D. Decrease

10 / 40

10. Ceramics make excellent refractory materials. A material is said to be refractory if it:

A. All the options

B. has high refractive index

C. resists the flow of electric current

D. retains its strength at high temperatures

11 / 40

11. Iron is

A. Ferroelectric

B. Dielectric

C. Ferromagnetic

D. Paramagnetic

12 / 40

12. The percentage of carbon in grey iron cast' ings usually varies between

A. 5 to 7%

B. 2.5 to 4.5%

C. 0.5 to 1%

D. 1 to 2%

13 / 40

13. Paramagnetic alpha iron changes to gamma iron at

A. 770°C

B. 1440°C

C. 910°C

D. 1539°C

14 / 40

14. Various isotopes of a given element have same:

A. Thermodynamic stability

B. Number of neutrons

C. Number of protons

D. Molar mass

15 / 40

15. Ferromagnetic alpha iron exists in temperature range of

A. 1400-1539°C

B. 770-910°C

C. Below 723°C

D. 910-1440°C

16 / 40

16. The ability of a material to resist softening at high temperature is known as

A. Hot tempering

B. Creep

C. Fatigue

D. Hot hardness

17 / 40

17. In malleable iron, carbon is present in the form of

A. Spheroids

B. Cementite

C. Flakes

D. Nodular aggregates of graphite

18 / 40

18. Sulphur in pig iron tends to make it.

A. Ductile

B. Soft

C. Tough

D. Hard

19 / 40

19. White cast iron contains carbon in the form of

A. Cementite

B. Graphite

C. White carbon

D. Free carbon

20 / 40

20. A reversible change in the atomic structure of the steel with a corresponding change in the properties is known as

A. Heat treatment

B. Precipitation

C. Recrystallisation

D. Allotropic change

21 / 40

21. Cast iron is characterized by minimum of following %age of carbon

A. 2%

B. 1.3%

C. 0.8%

D. 0.2%

22 / 40

22. Which of the following is correct?

A. They do not reach a fracture point

B. Aluminum oxide reaches fracture point at the same time as glass

C. Aluminum oxide reaches fracture point after glass

D. Aluminum oxide reaches fracture point before glass

23 / 40

23. In grey cast iron, carbon is present in the form of

A. Spheroids

B. Free carbon

C. Cementite

D. Flakes

24 / 40

24. The metallic structure of mild steel is
A.
B.
C.
D

A. Cubic structure

B. Face centred cubic

C. Body centred cubic

D. Hexagonal close packed

25 / 40

25. GFRP is an important composite. It stands for

A. Glass Fibre Reinforced Polymer

B. Graphite Fibre Reinforced Polymer

C. Germanium Fibre Reinforced Polymer

D. Gelatin Fibre Reinforced Polymer

26 / 40

26. In terms of which of the following properties, metals are better than ceramics?

A. Hardness

B. Ductility

C. Yield Strength

D. Toughness

27 / 40

27. Pick up wrong statement about wrought iron

A. It is very soft and ductile

B. It contains carbon of the order of 0 to 0.25%

C. It can be easily forge welded

D. It is made by adding suitable percentage of carbon to molten iron and subjecting the product to repeated hammering and rolling

28 / 40

28. Super conduction by metals is observed in the temperature range of

A. Around 0°C

B. Above 100°K

C. Below 10°K

D. Around 100°C

29 / 40

29. Steels mainly contain iron and carbon. Under which of the following categories do they belong?

A. Metallic Solids

B. Polymer

C. Composites

D. Ceramics

30 / 40

30. Ceramics are brittle.

A. True

B. False

31 / 40

31. A reversible change in the atomic structure of steel with corresponding change in the properties is known as

A. Solidus change

B. Allotropic change

C. Physical change

D. Molecular change

32 / 40

32. Ductility of a material can be defined as

A. All the options

B. Ability to undergo large permanent deformations in tension

C. Ability to recover its original form

D. Ability to undergo large permanent deformations in compression

33 / 40

33. For the allotropic forms of iron, the points of arrest are

A. The points of discontinuity

B. The points where no further change occurs

C. The points where there is no further flow of metal

D. Constant for all metals

34 / 40

34. The crystal of alpha iron is

A. Face centred cubic

B. Cubic structure

C. Hexagonal close packed

D. Body centred cubic

35 / 40

35. Which of the following constituents of steels is softest and least strong

A. Ferrite

B. Cementite

C. Austenite

D. Pearlite

36 / 40

36. Pig iron is the name given to

A. Product of blast furnace made by reduction of iron ore

B. Raw material for blast furnace

C. Iron containing huge quantities of carbon

D. Iron in molten form in the ladles

37 / 40

37. Which of the following is true for polymers?

A. They do not have a linear stress-strain curve

B. They have very high molecular mass

C. They have high strength to mass ratio

D. All the options

38 / 40

38. Silicon carbide is ductile.

A. True

B. False

39 / 40

39. Which of the following can be the tensile strength of aluminum oxide?

A. 1200 MPa

B. 800 MPa

C. 1000 MPa

D. 600 MPa

40 / 40

40. Malleability of a material can be defined as

A. Ability to recover its original form

B. Ability to undergo large permanent deformations in tension

C. Ability to undergo large permanent deformations in compression

D. All the options

Your score is

The average score is 40%

Please do well to drop a comment if this has really helped you. Thanks❤️

Ace/Undergragra February 9, 2024

0 743 1 minute read

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