General Science Questions Practice Question and Answer
8 4 Answer : 2. "Methane"
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Q: The main constituent of biogas is 935 05b5cc69de4d2b4197774c8e1
5b5cc69de4d2b4197774c8e1- 1oxygenfalse
- 2Methanetrue
- 3acetic acidfalse
- 4methyl alcoholfalse
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Answer : 2. "Methane"
Explanation :
Answer: B) Methane Explanation: The main constituent of biogas is methane (55-70%), CO2 (30-45%) and some traces of gases such as H2S and ammonia. Biogas is produced under anaerobic conditions; the process is denominated as anaerobic digestion.
Q: What is the scientific name of domestic fly?
931 060545ad72a8e8355ed6c0249
60545ad72a8e8355ed6c0249- 1Mosca domestica.true
- 2Rana tigrina.false
- 3pavo christace.false
- 4pantheon Leofalse
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Answer : 1. "Mosca domestica."
Q: Which of the following is not a Natural fibre?
930 15fe1db23ce32c8585c749652
5fe1db23ce32c8585c749652- 1Starchfalse
- 2Cellulosefalse
- 3Rubberfalse
- 4Nylon-6true
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Answer : 4. "Nylon-6"
Q: If the radius of a person's blood vessels decreases, what will be the effect on his blood pressure?
928 05f86b5978a599d39499b39d2
5f86b5978a599d39499b39d2- 1increasetrue
- 2decreasefalse
- 3remain unchangedfalse
- 4None of thesefalse
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Answer : 1. "increase"
Q: Which one is known as magnetite-
926 05db9515e12906e36bedb9369
5db9515e12906e36bedb9369- 1$$Fe_2O_3$$false
- 2$$Fe_2O_3.3H_2O$$false
- 3$$FeS_2$$false
- 4$$Fe_3O_4$$true
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Answer : 4. "$$Fe_3O_4$$"
Q: Which one of the following is not correctly matched –
922 25ec77b669d324637e76db0bf
5ec77b669d324637e76db0bf- 1Anemometer - wind speedfalse
- 2Ammeter - Electric currentfalse
- 3Tacheometer - Pressure differencetrue
- 4Pyrometer - High temperaturefalse
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Answer : 3. "Tacheometer - Pressure difference "
Q: Beriberi is caused by a deficiency of
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5e1e489a28feb138cd364223- 1Vitamin B3false
- 2Vitamin B6false
- 3Vitamin B1true
- 4Vitamin B12false
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Answer : 3. "Vitamin B1"
Q: During which of the following operating conditions of an automobile, carbon monoxide content in exhaust gas is maximum?
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5d7b7f18e6c9c12e5a06dc63- 1Accelerationfalse
- 2Cruisingfalse
- 3Idle runningtrue
- 4Deaccelerationfalse
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Answer : 3. "Idle running"
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