Propane has many advantages as a fuel source, including:
A. It burns slowly because of its low pump-octane
B. It is stationary and non-portable
C. It is a clean-burning, non-toxic fuel
D. It leaves a high-residue as it burns
If a service technician is asked to perform a task that he or she...
including a it burns slowly because of its low pump octane b it is stationary and non portable c it is a clean burning
non toxic fuel d it leaves a
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CETP Pre-Certification Review
Propane has many advantages as a fuel source, including: - Answer A. It burns slowly
because of its low pump-octane
B. It is stationary and non-portable
C. It is a clean-burning, non-toxic fuel
D. It leaves a high-residue as it burns
If a service technician is asked to perform a task that he or she is not fully trained or
qualified for, the best action is to: - Answer A. Say nothing, gather up his or her tools
and supplies, and quietly leave the site
B. Attempt to perform the task to the best of his or her abilities
C. Promise the customer that he or she will return once trained.
D. Tell the customer that he or she cannot perform the task, but will work on getting a
technician who can
Propane differs form butane in which of the following ways? - Answer A. Propane
vaporizes at temperatures above -44 F; butane vaporizes above 32 F
B. A gallon of propane is heavier than a gallon of butane
C. Propane has a lower vapor pressure than butane when the liquid us at the same
temperature
D. When burned, propane produces more heat than an equal amount of butane
Propane vapor is: - Answer A. Lighter than air
B. The same as air
C. Heavier than air.
D. The same as natural gas
Liquid propane is: - Answer A. Light than water
B. The same as water
C. Heavier than water
D. Stable in water
When room-temperature propane is released into the air, it immediately: - Answer A.
Contracts
B. Vaporizes
C. Condenses
D. Freezes
The term for the amount of heat needed to raise the temperature of one pound of water
1 F is called a : - Answer A. CFT
B. PHD
C. CPR
D. BTU
, While in a closed container, propane must be under _____ while at room temperature to
keep it in liquid form. - Answer A. Pressure
B. Heater
C. Ventilator
D. Equalizer
Gas warning agents (odorants) are added to propane to: - Answer A. Make the gas last
longer
B. Make the gas detectable if it leaks into the air
C. Add a pleasant smell to the burning fuel
D. Make the has more reactive and cimbustible
Propane odorants are: - Answer A. Pleasant-smelling and barely detectable
B. Bitter-smelling and corrosive
C. Distinctive smelling and nontoxic
D. Non-burning and colorful
An effective way to prevent odorant fade in new containers, or in those that have been
open to the atmosphere is to: - Answer A. Open valves on containers in storage
B. Purge containers and keep them pressurized until installed
C. Remove odorant from containers in use
D. Increase the water content in contrainers
A customer calls in to report a strong smell of gas at the site. A proper response for the
employee to give the customer would be to: - Answer A. Schedule an appointment for a
technician to come and check it out
B. Purchase a gas detector and monitor the readings
C> Ask the neighbors if they can also smell the gas
D. Evacuate the structure and keep a safe distance away
The three ingredients necessary for combustion are: - Answer A. Nitrogen, pressure,
and heat
B. Fuel, oxygen, and an ignition source
C. Gas, Liquid, and a solid
D. Vapor, flame, and air
Propane burns most efficiently at which gas-air mixture? - Answer A. 1 part propane to
24 parts air
B. 10 parts propane to 20 parts air
C. 25 parts propane to 15 parts air
D. 50 parts propane to 5 parts air
Incomplete combustion of propane results in: - Answer A. Excessive heat production
B. Conversion of propane to oxygen
C. Inefficient use of fuel and harmful byproducts
D. Inability of the propane to burn
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