MME 201 CBT PRACTICE TEST

Ace/Undergragra February 9, 2024

0 740 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. In nodular iron, graphite is in the form of

A. Spheroids

B. Cementite

C. Free carbon

D. Flakes

2 / 40

2. Pig iron is the name given to

A. Iron in molten form in the ladles

B. Iron containing huge quantities of carbon

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

D. Raw material for blast furnace

3 / 40

3. The number of electrons in 1 cm3 of metal would be of the order of

A. 10^22

B. 10^16

C. 10^40

D. 10^10

4 / 40

4. Which of the following is correct?

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

B. They do not reach a fracture point

C. Aluminum oxide reaches fracture point after glass

D. Aluminum oxide reaches fracture point before glass

5 / 40

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

A. Hexagonal close packed

B. Face centred cubic

C. Body centred cubic

D. Cubic structure

6 / 40

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

A. retains its strength at high temperatures

B. resists the flow of electric current

C. has high refractive index

D. All the options

7 / 40

7. Silicon carbide is ductile.

A. False

B. True

8 / 40

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

A. Spheroids

B. Cementite

C. Flakes

D. Nodular aggregates of graphite

9 / 40

9. Ductility of a material can be defined as

A. Ability to undergo large permanent deformations in compression

B. Ability to undergo large permanent deformations in tension

C. All the options

D. Ability to recover its original form

10 / 40

10. Pick up wrong statement about wrought iron

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

B. It is very soft and ductile

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

D. It can be easily forge welded

11 / 40

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

A. 1.3%

B. 0.2%

C. 2%

D. 0.8%

12 / 40

12. GFRP is an important composite. It stands for

A. Graphite Fibre Reinforced Polymer

B. Germanium Fibre Reinforced Polymer

C. Gelatin Fibre Reinforced Polymer

D. Glass Fibre Reinforced Polymer

13 / 40

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

A. Ferrite

B. Pearlite

C. Cementite

D. Austenite

14 / 40

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

A. Tensile test

B. Transverse bending test

C. Compressive test

D. Shearing test

15 / 40

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

A. Constant for all metals

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

C. The points of discontinuity

D. The points where no further change occurs

16 / 40

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

A. By shearing along oblique plane

B. By crushing into thousands of pieces

C. In direction perpendicular to application of load

D. By forming a bulge

17 / 40

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

A. Allotropic change

B. Molecular change

C. Physical change

D. Solidus change

18 / 40

18. Ceramics are brittle.

A. False

B. True

19 / 40

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

A. Ductility

B. Yield Strength

C. Toughness

D. Hardness

20 / 40

20. Various isotopes of a given element have same:

A. Number of neutrons

B. Thermodynamic stability

C. Molar mass

D. Number of protons

21 / 40

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

A. Remain constant

B. First increase and then decrease

C. Decrease

D. Increase

22 / 40

22. Iron is

A. Ferromagnetic

B. Dielectric

C. Ferroelectric

D. Paramagnetic

23 / 40

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

A. Fatigue

B. Creep

C. Hot hardness

D. Hot tempering

24 / 40

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

A. Composites

B. Polymer

C. Metallic Solids

D. Ceramics

25 / 40

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

A. Around 100°C

B. Below 10°K

C. Around 0°C

D. Above 100°K

26 / 40

26. Calcium is an isobar of Argon. They differ in:

A. Atomic weight

B. Number of neutrons

C. Number of nucleons

D. None of the options

27 / 40

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

A. 0.5 to 1%

B. 5 to 7%

C. 1 to 2%

D. 2.5 to 4.5%

28 / 40

28. Chilled cast iron has

A. A low percentage of graphite

B. Graphite as its basic constituent of composition

C. A very high percentage of graphite

D. No graphite

29 / 40

29. Wrought iron is

A. High in strength

B. Highly resistant to corrosion

C. Hard

D. Heat treated to change its properties

30 / 40

30. The percentage of carbon in pig iron varies from

A. 4 to 4.5%

B. 0.1 to 1.2%

C. 1.5 to 2.5%

D. 2.5 to 4%

31 / 40

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

A. Plastic deformation

B. Endurance

C. Fatigue

D. Creep

32 / 40

32. The unique property of cast iron is, its high

A. Damping characteristics

B. Malleability

C. Surface finish

D. Ductility

33 / 40

33. White cast iron contains carbon in the form of

A. Graphite

B. Cementite

C. White carbon

D. Free carbon

34 / 40

34. Which of the point is there in a stress strain curve for a ceramic?

A. Fracture point

B. Limit of proportionality

C. Yield point

D. Ultimate tensile strength

35 / 40

35. Isotropic materials are those which have the same

A. Elastic properties in all directions

B. Electric and magnetic properties in all directions

C. Thermal properties in all directions

D. Stresses induced in all directions

36 / 40

36. Mild steel belongs to the following category

A. Low carbon steel

B. Medium carbon steel

C. High carbon steel

D. Alloy steel

37 / 40

37. Ferromagnetic alpha iron exists in temperature range of

A. Below 723°C

B. 770-910°C

C. 1400-1539°C

D. 910-1440°C

38 / 40

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

A. Spheroids

B. Free carbon

C. Flakes

D. Cementite

39 / 40

39. Which of the following is true for polymers?

A. They have high strength to mass ratio

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

C. They have very high molecular mass

D. All the options

40 / 40

40. Sulphur in pig iron tends to make it.

A. Soft

B. Ductile

C. Hard

D. Tough

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

0 740 1 minute read

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