The circumference of Earth is about ____.
Correct answer(s):
- 40000 KM
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Earth’s Polar diameter is about ____ than its equatorial diameter.
Correct answer(s):
- 43 KM shorter
The total surface area of Earth is about ____ million square KM.
Correct answer(s):
- 510
The Earth is an oblate spheroid and not a perfect sphere. This is because :
Correct answer(s):
- The Earth has a rotational motion and the rotational speed increases as one goes from the Poles towards the Equator.
- The Equator experiences greater gravitional pull from the Sun.
The time required for the earth to return to a given point in its orbit with reference to fixed star is :
Correct answer(s):
- Sidereal year
What is the time difference between longitudes?
Correct answer(s):
- 4 minutes
The Tropic of Cancer passes through:
Correct answer(s):
- India and Saudi Arabia
The Core of the Earth is made up of:
Correct answer(s):
- both iron and magnesium in the plastic state.
The Core of the Earth is made up of both ____ and ____ in the plastic state.
- oxygen
- iron
- magnesium
- silica
Correct answer(s):
- iron
- magnesium
What are the two most abundant elements in Earth’s crust?
- oxygen
- Manganese
- Silicon
- Iron
Correct answer(s):
- Oxygen
- Silicon
Which one of the following minerals occurs abundantly in the earth’s crust?
Correct answer(s):
- Silica
Which one of the following elements is the most abundant in the Earth’s crust?
Correct answer(s):
- Oxygen
The approximate circumference of the Earth is:
Correct answer(s):
- 40075 km
A safe haven is one place you can leave a vehicle unattended that is hauling explosives. What is the best description of a safe haven?
Correct answer(s):
- Any property that has been government approved for this use.
You may not park a vehicle carrying hazardous materials within ____ feet of an open fire.
Correct answer(s):
- 300
When is it necessary to ground the trailer?
Correct answer(s):
- When filling or unloading any flammable liquid tank. Ground must be maintained until filling hole is properly closed.
What placard must be used with an inhalation hazard load?
- Flammable
- Dangerous
- Poison
- All of the above
Which option is correct?
Correct answer(s):
- Poison
Which of the following is a way to decide which placards to use?
- Materials hazard class
- Amount of hazardous materials being shipped
- Total weight of all classes of hazardous materials on your vehicle
- All of the above
Which statement is correct?
Correct answer(s):
- All of the above
In Column 1, the “+” sign means:
Correct answer(s):
- The proper shipping name (whether the material meets the definition of that class or not.)
You have loaded a hazardous material into a cargo tank. What must you do before you move the vehicle?
Correct answer(s):
- Close all manholes and valves. Be sure they are free of leaks.