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A man purchased 'X' to use it as fuel for cooking. What qualities 'X' should possess to be used as a fuel? A) Low ignition temperature and cheap.  B) High calorific values and low ignition temperature.  C) Moderate calorific value and non-toxic. D) Moderate Ignition temperature and cheap. E) Low calorific value and non-toxic.

A man purchased 'X' to use it as fuel for cooking. What qualities 'X' should possess to be used as a fuel? A) Low ignition temperature and cheap.  B) High calorific values and low ignition temperature.  C) Moderate calorific value and non-toxic. D) Moderate Ignition temperature and cheap. E) Low calorific value and non-toxic. Correct Answer A, B

The correct answer is A, B.

Key Points

  • A good or valuable fuel has a low ignition temperature and a high calorific value.
  • Good fuels have a high calorific value, which means that the energy released when a specific amount of fuel is heated is greater.
  • The calorific value of a fuel is expressed in a unit called kilojoule per kg (kJ/kg).
  • Good fuels have a low ignition temperature (the lowest temperature at which a substance catches fire).
  • A good fuel is one which is readily available. It is cheap. 
  • It burns easily in air at a moderate rate. It produces a large amount of heat. It does not leave behind any undersirable substances.

Related Questions

Study the following table: Fuel Calorific value State Ignition temp. A High Solid High B Moderate Gas High C Moderate Gas Moderate D Low Liquid Low Which is best suited as domestic fuel?
Study the following table:  Fuel   Calorific value  State  Ignition temp. A High Solid High B Moderate Gas High C Moderate Gas Moderate D Low liquid Low Which is best suited as domestic fuel?
Consider the following statements in the light of the philosophy of Locke and mark the correct option:
1. Primary qualities are sensible qualities that depend on the perceiver.
2. Primary qualities are colour, sound, taste and texture.
3. Secondary qualities are those whose existence is independent of any perceiver.
4. Primary qualities are objective properties of things whereas secondary qualities are subjective properties.
Which one is correct with regard to John Locke philosophy?
1. Primary qualities are sensible qualities that depends on their perceiver.
2. Primary qualities are colour, sound, taste and texture.
3. Secondary qualities are those whose existence is independent of any perceiver.
4. Primary qualities are objective properties of things whereas secondary qualities are subjective properties.
Properties of four fuel are given below Fuel Calorific value (J/kg) State Ignition Temp A 17 solid High B 45 liquid moderate C 150 gas low D 20 liquid moderate Which of the following is best option as a fuel for domestic purpose?
A company produces five types of shirts -- A,B,C,D and E-using cloth of three qualities -- high, medium and low , using dyes of three qualities-- high, medium and low. One shirt requires 1.5 m of cloth .The following table gives respectively : The number of shirts (of each category) produced, in thousands. The percentage distribution of cloth quality in each type of shirt, and The percentage distribution of dye quality in each type of shirt. What is the ratio of the three qualities of dyes in high quality cloth ?
Five friends P, Q, X, Y and Z purchased some notebooks. The relevant information is given below: 1. Z purchased 8 notebooks more than X did. 2. P and Q together purchased 21 notebooks. 3. Q purchased 5 notebooks less than P did. 4. X and Y together purchased 28 notebooks. 5. P purchased 5 notebooks more than X did. If each notebook is priced ₹40, then what is the total cost of all the notebooks?
Max Weber used the Greek world 'Charisma' to refer to
1. Qualities acquired by experience
2. Inherited qualities
3. Supernatural qualities
4. Super human qualities
Select the correct answer:
Locke talks about
1. primary qualities
2. secondary qualities
3. empirical qualities
4. external qualities
Select the correct answer:
A company produces five types of shirts -- A,B,C,D and E-using cloth of three qualities -- high, medium and low , using dyes of three qualities-- high, medium and low. One shirt requires 1.5 m of cloth .The following table gives respectively : The number of shirts (of each category) produced, in thousands. The percentage distribution of cloth quality in each type of shirt, and The percentage distribution of dye quality in each type of shirt. What is the ratio of low quality dye used for C-type shirts to that used for D-type shirts ?