EMAR102: Materials Test 2
EMAR102: Materials Test
Test your knowledge of materials and their properties with our comprehensive quiz designed for engineering students and professionals. You will encounter questions ranging from material selection for ship components to treatment processes and performance attributes.
- Multiple choice questions covering key materials concepts
- Assess your understanding of materials engineering
- Ideal for students and industry professionals alike
Which material from those listed below is the worst material for making a ship's propeller from?
Stainless steel
Bronze
Brass
Monel metal
From the nobility table of elements:
Aluminium is anodic to mild steel
Zinc will give cathodic protection to copper
Mild steel will give cathodic protection to Cupro-Nickel
All of the answers are correct
Vanadium is an alloying element often added to the composition of a material to:
Improve the strength of a material
Improve the fatigue resistance of a material
Improve the hardness of a material
Improve the corrosion resistance of a material
The alloying element that is often added to the material composition to improve strength at high temperatures is:
Chromium
Titanium
Vanadium
Molybdenum
With material treatment, in the annealing process:
The material is heated to below the upper critical temperature of the material
The material is control-cooled in order to restore the ductility of the material
The material is cooled in air after being heated
We make use of carbon rich matrial to harden the surface of the material
The centrifugal casting process ensures that the final product:
Has a fine grain structure
Is able to be cast into intricate shapes
Is more quickly manufactured that conventional casting products
Can retain it's ductile properties and not become brittle
With the brazing repair process:
Different types of material can be joined together
The filler material has a melting point similar to the base metal
The join is stronger than what can be acheived with a silver-solder process
A DC welding plant is required
An example of an engineering component that suffers from a reversed stress is:
A tooth of a gear wheel
One of the main engine holding down bolts
A pump shaft
A shaft that is mounted to the rudder of a ship
An impact test is an example of:
A destructive test procedure
A non-destructive test procedure
A penetrant test procedure
An ultrasonic test procedure
With regards to hardening of materials:
Case hardening provides a stronger surface case than nitriding
Induction hardening os the best form of surface hardening a material
Nitriding provides a stronger surface case than case hardening
None of these answers are correct
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