Practice Penetration Resistance (8.5) - Getting Started 14 - Construction Engineering & Management - Vol 1

Practice: Penetration Resistance

Lesson 8.5Getting Started 14

Practise this section

9 questions

Flashcard drill
4 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
Sign up to start the exercise
Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
What is rolling resistance?
Show hintHide hint
Consider what happens when a wheel rolls on the ground.
Question 2.
Define penetration resistance.
Show hintHide hint
Think about the effect of weight on soft ground.
3Question 3.
What is penetration resistance?
- Resistance from rolling over a surface
- Resistance from sinking into the surface
- Resistance caused by machine speed
Show hintHide hint
Think about how tires react on soft surfaces.
4Question 4.
True or False: Penetration resistance increases the total rolling resistance.
- True
- False
Show hintHide hint
Consider how resistance factors combine.
Question 5.
A loader weighing 60,000 kg (60 tons) sinks 4 cm into soft soil. What is the additional tractive effort required for this loader due to penetration resistance?
Show hintHide hint
Use the provided formula to find the additional tractive effort.
Question 6.
During a project in seasonal wet conditions, a 45-ton excavator sinks 5 cm during operations. Discuss the potential impact on overall operational productivity due to penetration resistance.
Show hintHide hint
Reflect on how machinery performance is affected by environmental conditions.

5 more questions in this section. Enroll free to practise them all.