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. Cast iron has
A.
B.
C.

A. High ductility

B. High tensile strength

C. Its elastic limit close to the ultimate breaking strength

D. All the options

2 / 40

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

A. Allotropic change

B. Precipitation

C. Recrystallisation

D. Heat treatment

3 / 40

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

A. 600 MPa

B. 1000 MPa

C. 800 MPa

D. 1200 MPa

4 / 40

4. GFRP is an important composite. It stands for

A. Germanium Fibre Reinforced Polymer

B. Glass Fibre Reinforced Polymer

C. Gelatin Fibre Reinforced Polymer

D. Graphite Fibre Reinforced Polymer

5 / 40

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

A. 0.2%

B. 2%

C. 0.8%

D. 1.3%

6 / 40

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

A. 10^22

B. 10^10

C. 10^16

D. 10^40

7 / 40

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

A. None of the options

B. Atomic weight

C. Number of nucleons

D. Number of neutrons

8 / 40

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

A. Metals

B. None of the options

C. Polymers

D. Ceramics

9 / 40

9. Malleability 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. Ability to recover its original form

D. All the options

10 / 40

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

A. Plastic deformation

B. Creep

C. Fatigue

D. Endurance

11 / 40

11. Sulphur in pig iron tends to make it.

A. Ductile

B. Soft

C. Tough

D. Hard

12 / 40

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

A. Below 10°K

B. Around 0°C

C. Around 100°C

D. Above 100°K

13 / 40

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

A. Compressive test

B. Transverse bending test

C. Tensile test

D. Shearing test

14 / 40

14. The crystal of alpha iron is

A. Face centred cubic

B. Body centred cubic

C. Cubic structure

D. Hexagonal close packed

15 / 40

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

A. Creep

B. Hot tempering

C. Hot hardness

D. Fatigue

16 / 40

16. 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. Increase

C. Remain same

D. Decrease

17 / 40

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

A. Spheroids

B. Flakes

C. Nodular aggregates of graphite

D. Cementite

18 / 40

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

A. 1 to 2%

B. 5 to 7%

C. 0.5 to 1%

D. 2.5 to 4.5%

19 / 40

19. Iron is

A. Ferromagnetic

B. Paramagnetic

C. Dielectric

D. Ferroelectric

20 / 40

20. Mild steel belongs to the following category

A. High carbon steel

B. Low carbon steel

C. Medium carbon steel

D. Alloy steel

21 / 40

21. The percentage of carbon in pig iron varies from

A. 2.5 to 4%

B. 0.1 to 1.2%

C. 1.5 to 2.5%

D. 4 to 4.5%

22 / 40

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

A. Pearlite

B. Ferrite

C. Austenite

D. Cementite

23 / 40

23. Chilled cast iron has

A. Graphite as its basic constituent of composition

B. A very high percentage of graphite

C. A low percentage of graphite

D. No graphite

24 / 40

24. Silicon carbide is ductile.

A. False

B. True

25 / 40

25. Isotropic materials are those which have the same

A. Elastic properties in all directions

B. Electric and magnetic properties in all directions

C. Stresses induced in all directions

D. Thermal properties in all directions

26 / 40

26. The elastic stress strain behaviour of rubber is

A. No fixed relationship

B. Linear

C. Non-linear

D. Plastic

27 / 40

27. Pig iron is the name given to

A. Raw material for blast furnace

B. Iron in molten form in the ladles

C. Iron containing huge quantities of carbon

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

28 / 40

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

A. Toughness

B. Hardness

C. Yield Strength

D. Ductility

29 / 40

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

A. Hexagonal close packed

B. Face centred cubic

C. Cubic structure

D. Body centred cubic

30 / 40

30. In nodular iron, graphite is in the form of

A. Cementite

B. Flakes

C. Spheroids

D. Free carbon

31 / 40

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

A. Ceramics

B. Metallic Solids

C. Polymer

D. Composites

32 / 40

32. Pick up wrong statement about wrought iron

A. It can be easily forge welded

B. It is very soft and ductile

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

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

33 / 40

33. Which of the following is correct?

A. Aluminum oxide reaches fracture point before glass

B. They do not reach a fracture point

C. Aluminum oxide reaches fracture point after glass

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

34 / 40

34. 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. All the options

D. has high refractive index

35 / 40

35. Which of the following is correct?

A. Slope of stress strain curve of aluminum oxide is the same as glass

B. Slope of stress strain curve of aluminum oxide is more than glass

C. Slope of stress strain curve of aluminum oxide is less than glass

D. Slope of stress strain curve of aluminum oxide and glass are not comparable

36 / 40

36. Ceramics are brittle.

A. False

B. True

37 / 40

37. White cast iron contains carbon in the form of

A. Cementite

B. Free carbon

C. White carbon

D. Graphite

38 / 40

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

A. Molecular change

B. Solidus change

C. Allotropic change

D. Physical change

39 / 40

39. Various isotopes of a given element have same:

A. Number of protons

B. Thermodynamic stability

C. Molar mass

D. Number of neutrons

40 / 40

40. Paramagnetic alpha iron changes to gamma iron at

A. 1539°C

B. 770°C

C. 1440°C

D. 910°C

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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