LIMURU TVC I CWF(M) 2023 I End Test Assessment I Jan-April 2024

What is the primary purpose of utilizing engineering materials in electrical work?

a) Aesthetic appeal
b) Cost reduction
c) Enhancing electrical conductivity
d) None of the above

• b
• d
• a
• c

Which formula is used to calculate power?

a) Power = Force × Distance
b) Power = Work ÷ Time
c) Power = Mass × Acceleration
d) Power = Voltage × Current

• Power = Work ÷ Time
• Power = Distance ÷ Time
• Power = Current ÷ Resistance
• Power = Mass × Velocity

If an object has a mass of 500 kg and occupies a volume of 2 m³, what is its density?

a) 250 kg/m³
b) 500 kg/m³
c) 750 kg/m³
d) 1000 kg/m³

• 300 kg/m³
• a) 250 kg/m³
• 400 kg/m³
• 600 kg/m³

What is the force exerted on an object due to gravity called? a) Friction force
b) Magnetic force
c) Force of gravity
d) Normal force

• d) Normal force
• a) Friction force
• c) Force of gravity
• b) Magnetic force

Newton's law of motion describes the relationship between force, mass, and acceleration. Which law states that an object will remain at rest or in uniform motion unless acted upon by an external force? a) Newton's First Law
b) Newton's Second Law
c) Newton's Third Law
d) Law of Inertia

• a) Newton's First Law
• Law of Gravitation
• Newton's Third Law
• Newton's Second Law

What term describes the property of an object to resist changes in its state of motion? a) Momentum
b) Velocity
c) Inertia
d) Acceleration

• b) Force
• a) Speed
• d) Friction
• c) Inertia

Which of the following is NOT a type of engineering material? a) Metal
b) Plastic
c) Wood
d) Water

• d
• c
• b
• a

Which method is commonly used for corrosion prevention on iron and steel surfaces? a) Electroplating
b) Anodizing
c) Cathodic protection
d) Powder coating

• d) Epoxy coating
• b) Passivation
• a) Galvanizing
• c) Cathodic protection

What environmental factor can accelerate corrosion of metals? a) Dry air
b) High humidity
c) Pure water
d) Low temperature

• b) High humidity
• a) Wet air
• b) Low humidity
• c) Salty water

Which of the following metals is considered ferrous? a) Copper
b) Aluminum
c) Iron
d) Brass

• c) Iron
• d) Zinc
• b) Silver
• a) Gold