Practice Estimating Power Requirements With A Problem Example (3.5) - Overview 72

Practice: Estimating Power Requirements with a Problem Example

Lesson 3.5Overview 72

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9 questions

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6 sample questions

Question 1.
Convert 25,000 kg into tons.
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Remember, divide by 1000.
Question 2.
What is rolling resistance for a vehicle weighing 30 tons with a rolling resistance of 50 kg per ton?
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Multiply weight in tons by the rolling resistance.
3Question 3.
What is the rolling resistance for a vehicle weighing 100 tons and rolling resistance of 25 kg per ton?
- 2500 kg
- 2000 kg
- 3000 kg
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Multiply the weight in tons by the rate.
4Question 4.
True or False: The only factor impacting usable power is the weight of the vehicle.
- True
- False
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Consider other aspects like grade and rolling resistance.
Question 5.
A construction vehicle weighing 20 tons operates on a road with a rolling resistance of 50 kg per ton and a 4% slope. Calculate the total tractive effort needed and the usable power if its max rimpull is 8000 kg.
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Find total resistance first, then subtract from max rimpull.
Question 6.
If a machine has a rolling resistance of 15 kg per ton and weighs 10 tons on a 3% incline, how much additional power is needed to tow 2000 kg uphill?
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Calculate both resistances to find your total effective pull.

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