Skip to content

VideRime Online Learning

Search for:

Home
GK/GA MCQs
Questions?
- Ask Question
- Questions
Direct Links
Submit Article
Contact Us
Membership Registration
Login
Signup Now

Home
GK/GA MCQs
Questions?
- Ask Question
- Questions
Direct Links
Submit Article
Contact Us
Membership Registration
Login
Signup Now

Engineering Materials
0

Engineering Materials Practice Set-5

May 13, 2021

Show paginator

Hide paginator

25%

Page 1 of 4

1. The property of a material essential for spring materials is

Resilience

Plasticity

Stiffness

Ductility

2. Brass is an alloy of

Copper, tin and zinc

Copper and zinc

None of these

Copper and tin

3. Balls for ball bearings are made of

Carbon-chrome steel

Cast iron

Mild steel

Stainless steel

4. The percentage of carbon in low carbon steel is

0.5%

0.3%

0.05%

0.15%

5. The brown smoke during the operation of a Bessemer converter indicates that the

Silicon and manganese has burnt and carbon has started oxidizing

The brown smoke does not occur during the operation of a Bessemer converter

The converter must be titled to remove the contents of the converter

Air is burning out silicon and manganese

6. Materials after cold working are subjected to following process to relieve stresses

Normalizing

Tempering

Hot working

Annealing

7. Which is false statement about properties of aluminium?

Wear resistance is very good

Creep strength limits its use to fairly low temperatures

Modulus of elasticity is fairly low

Fatigue strength is not high

8. Isotropic materials are those which have the same

Stresses induced in all directions

Electric and magnetic properties in all directions

Thermal properties in all directions

Elastic properties in all directions

9. The steel widely used for motor car crankshafts is

Silicon steel

Nickel steel

Chrome steel

Nickel-chrome steel

10. The stiffness is the ability of a material to resist

Externally applied forces with breakdown or yielding

Deformation under stress

None of the above

Fracture due to high impact loads

Page 2 of 4

11. Which of the following display properties similar to that of steel?

(C) Both (A) and (B)

(A) Blackheart cast iron

(B) Whiteheart cast iron

(D) None of these

12. Delta iron occurs at temperature of

Above melting point

Between 1400°C and 1539°C

Room temperature

Between 910°C and 1400°C

13. Recrystallization temperature is one

At which crystals grow bigger in size

At which change of allotropic form takes place

At which new spherical crystals first begin to form from the old deformed one when a strained metal is heated

At which crystals first start forming from molten metal when it is cooled

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

Cementite

Austenite

Pearlite

Ferrite

15. The coordination number of a face centered cubic space lattice is

Twenty

Twelve

Six

Eighteen

16. When elements like nickel, chromium, copper and molybdenum are added to the molten cast iron, it produces

Malleable cast iron

Nodular cast iron

Alloy cast iron

White cast iron

17. Which of the following is not the correct method of increasing fatigue limit?

Nitriding of surface

Shot peening

Surface decarburisation

Cold working

18. The elastic stress strain behavior of rubber is

Nonlinear

Linear

No fixed relationship

Plastic

19. Lead is poured into the joint between two pipes. These pipes may be made of

Vitrified clay

Concrete

Cast iron

Asbestos cement

20. Neutral solution is one which has pH value

Greater than 7

pH value has nothing to do with neutral solution

Less than 7

Equal to 7

Page 3 of 4

21. Tin base white metals are used where the bearings are subjected to

High pressure and load

Large surface wear

Elevated temperatures

Light load and pressure

22. The charge is fed into the blast furnace through the

Tyres

Bosh

Throat

Stack

23. A material is known as allotropic or polymorphic if it

Responds to heat treatment

Has a fixed structure under all conditions

Exists in several crystal forms at different temperatures

Has its atoms distributed in a random pattern

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

Creep

Fatigue

Hot tempering

Hot hardness

25. Mild steel belongs to the following category

Medium carbon steel

High carbon steel

Alloy steel

Low carbon steel

26. The type of space lattice found in alpha-iron is

Body centered cubic space lattice

None of these

Close packed hexagonal space lattice

Face centered cubic space lattice

27. When low carbon steel is heated up to lower critical temperature

The grain size first increases and then decreases very rapidly

The grain size increases very rapidly

There is no change in grain size

The average grain size is a minimum

28. Foundry crucible is made of

Lead

Graphite

Mild steel

German silver

29. Closed packed hexagonal space lattice is found in

Zinc, magnesium, cobalt, cadmium, antimony and bismuth

None of the above

Alpha-iron, tungsten, chromium and molybdenum

Gamma-iron, aluminium, copper, lead, silver and nickel

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

First increase and then decrease

Increase

Remain constant

Decrease

Page 4 of 4

31. In full annealing, the hypo eutectoid steel is heated from 30°C to 50°C above the upper critical temperature and then cooled

Suddenly in a suitable cooling medium

Any one of these

Slowly in the furnace

In still air

32. Iron-carbon alloys containing 1.7 to 4.3% carbon are known as

Hypoeutectic cast irons

None of these

Hypereutectic cast irons

Eutectic cast irons

33. White cast iron has

Carbon in the form of carbide

All of these

Low tensile strength

High compressive strength

34. Malleability of a material can be defined as

Ability to undergo large permanent deformations in tension

Ability to recover its original form

Ability to undergo large permanent deformations in compression

All of the above

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

Endurance

Creep

Plastic deformation

Fatigue

36. A small percentage of boron is added to steel in order to

Increase wear resistance

Increase endurance strength

Increase hardenability

Reduce machinability

37. The molecules in a solid move

In a haphazard way

In circular motion

Back and forth like tiny pendulums

In a random manner

38. Which is false statement about case hardening? Case hardening is done by

Nitriding

Cyaniding

Induction hardening

Electroplating

39. Following elements have face-centered cubic structure

All of the above

Mg, Zn, Ti, Zr, Br, Cd

Gamma iron (910° to 1400°C), Cu, Ag, Au, Al, Ni, Pb, Pt

A iron (below 910°C and between 1400 to 1539°C), W

40. Which of the following metal is used in making electrical resistance wire for electric furnaces and heating elements?

Nichrome

Monel metal

Babbitt metal

Phosphor bronze

Loading...

Share this Now with Friends:

WhatsApp
Telegram
More

Related

Tags: Engineering Materials Mechanical Engineering

VideRime

A Demrot is the founder of VideRime Online Learning, a leading engineering website. He did his BE Civil and M.Tech Structure from RGPV University, Bhopal and has been working as an Assistant Professor in a reputed college.

Leave a ReplyCancel reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Ads by Google

Recent Posts

Key Benefits of Phd in any Discipline
[PDF] Basic Civil Engineering and Mechanics Available Online in PDF by S.S. Bhavikatti
Best 20 trending Topics for final year major projects in Civil Engineering
Explain different types of road bridges through neat sketches
What are the best video editing softwares
Explain the working of marshalling yard through neat diagram
Classification of Indian Railways in detail
What do you mean by coning of wheels? Also discuss its advantages.

Membership Registration

Secured Payment

Protection

DMCA.com Protection Status

VideRime.com is the leading online Learning portal. ©2026 All Rights Reserved.

Login Now

Google

OR

* Username

*

* Password

*

Remember me

Forgot Password

Don't have account? Register Now

VideRime Registration Form

* Username

*

* Username

*

* Last Name

*

* Email Address

*

* Confirm Email Address

*

* Password

*

Strength: Very Weak

(Use Cropper to set image and
use mouse scroller for zoom image.)

Already have an account? Login