#1
Which of the following is a characteristic property of propane?
Blue flame
ExplanationPropane burns with a blue flame.
#2
What is the chemical formula of propane?
C3H8
ExplanationPropane's chemical formula is C3H8.
#3
In which state of matter does propane exist at room temperature and atmospheric pressure?
Gas
ExplanationPropane exists as a gas at room temperature and atmospheric pressure.
#4
Which of the following is a common application of propane in residential settings?
Heating
ExplanationPropane is commonly used for heating in residential settings.
#5
In which phase does propane transition from a gas to a liquid?
Condensation
ExplanationPropane transitions from a gas to a liquid through condensation.
#6
Which color is associated with the flame produced when propane burns efficiently?
Blue
ExplanationA blue flame is associated with efficient burning of propane.
#7
Which property gives propane its distinct odor to aid in leak detection?
Mercaptan
ExplanationPropane's distinct odor is due to the addition of mercaptan.
#8
What is the primary combustion product when propane burns?
Carbon dioxide
ExplanationThe primary combustion product of propane burning is carbon dioxide.
#9
What is the autoignition temperature of propane in degrees Celsius?
680°C
ExplanationPropane's autoignition temperature is 680°C.
#10
What is the primary component of propane gas that makes it an effective fuel?
Hydrogen
ExplanationHydrogen is the primary component of propane gas, making it an effective fuel.
#11
What is the maximum storage temperature for propane in a typical propane tank?
0°C
ExplanationThe maximum storage temperature for propane in a typical tank is 0°C.
#12
Which property of propane makes it suitable for use as a portable fuel?
Low vapor pressure
ExplanationPropane's low vapor pressure makes it suitable for use as a portable fuel.
#13
Which safety precaution is recommended when using propane appliances indoors?
Ensure good ventilation
ExplanationGood ventilation is crucial when using propane appliances indoors.
#14
What is the typical odor threshold of mercaptan added to propane for detection?
10 ppm
ExplanationThe typical odor threshold of mercaptan added to propane is 10 ppm.
#15
Which organization provides guidelines and standards for propane storage and handling?
NFPA (National Fire Protection Association)
ExplanationNFPA provides guidelines and standards for propane storage and handling.
#16
What is the purpose of an OPD (Overfill Protection Device) on a propane cylinder?
Prevent overfilling
ExplanationThe purpose of an OPD on a propane cylinder is to prevent overfilling.
#17
What should you do in the event of a suspected propane leak indoors?
Open windows and doors
ExplanationIn case of a suspected propane leak indoors, open windows and doors.
#18
Which of the following is a common symptom of propane inhalation exposure?
Elevated heart rate
ExplanationA common symptom of propane inhalation exposure is an elevated heart rate.