Practice Calculating Usable Force - 3.4 | Overview 72 | Construction Engineering & Management - Vol 1
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

Calculate the rolling resistance for a truck weighing 20 tons with a rolling resistance of 50 kg/ton.

💡 Hint: Multiply the weight (in tons) by the rolling resistance.

Question 2

Easy

What is the penetration resistance for a vehicle that sinks 5 cm with 6 kg/ton resistance?

💡 Hint: Use the formula: Penetration Resistance = Depth (cm) × Resistance (kg/ton) × Weight (tons).

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the formula for calculating total rolling resistance?

  • Total Resistance = Rolling Resistance + Penetration Resistance
  • Total Resistance = Weight × Rolling Resistance
  • Total Resistance = Weight ÷ Rolling Resistance

💡 Hint: Think about what we multiply for finding rolling resistance!

Question 2

True or False: Grade resistance increases as the slope steepness increases.

  • True
  • False

💡 Hint: Grade resistance relates to how steep a slope is.

Solve 2 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A construction vehicle has a gross weight of 20 tons, a rolling resistance of 50 kg/ton, and encounters a slope of 5%. Calculate the total resistance faced and determine the usable power if the machine's maximum power is rated at 6000 kg.

💡 Hint: Calculate each resistance first before determining usable power.

Question 2

A truck weighs 12 tons with a rolling resistance of 30 kg/ton and is lowering down a slope of 7%. Calculate the grade resistance and determine how much usable power remains from a maximum power of 7000 kg.

💡 Hint: Calculate to understand how resisting forces impact usable work.

Challenge and get performance evaluation