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Doctors Medicines MCQs Q&A

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In the following question, two statements are numbered as A and B. On solving these statements we get quantities A and B respectively. Solve for the both quantities and choose the correct option. Quantity A: Two powders P and Q are to be mixed in ratio 4 ∶ 7 to form a mixture. If 28 kg of powder P and 28 kg of powder Q is available, how much powder Q is more required to make the desired mixture? Quantity B: A mixture is formed by mixing 16 kg of powder X and 25 kg of powder Y. How much powder X is required to be mixed with 40 kg of powder Y to make a mixture of the same ratio?
108 kg of mixture C was prepared by mixing equal quantities of mixtures A and B, made up of chalk powder and brick powder, such that the ratio of chalk and brick powder in mixture C is 17 ∶ 10. If mixture A comprised of 22 kg chalk powder, how much brick powder was present in mixture B?
Where can dry powder fire extinguishers not used?
In a laboratory test run, the rate of drying was found to be 0.5 × 10-3 kg/m2.s, when the moisture content reduced from 0.4 to 0.1 on dry basis. The critical moisture content of the material is 0.08 on a dry basis. A tray dryer is used to dry 100 kg (dry basis) of the same material under identical conditions. The surface area of the material is 0.04 m2/kg of dry solid. The time required (in seconds) to reduce the moisture content of the solids from 0.3 to 0.2 (dry basis) is
The chemical which used in dry cleaning is/are
1. carbon tetrachloride, commercial dry cleaner powder
2. petrol, benzine
3. telcum powder, sulphur powder
4. French chalk, fuller Earth
Select the correct answer
The rate list of groceries in a shop are depicted as follows : Rice (1 KG) Rs. 70 Black gram (1 KG) Rs. 90 Wheat Flour (1 KG) Rs. 45 Coriander powder (250 g) Rs. 40 Chilli Powder (250 g) Rs. 60 Salt (1 Pkt Rs. 25 Biscuit (1 Pkt) Rs. 20 Ashish needs to buy 5 kg of rice, 5 kg of wheat flour, 250 g of coriander powder, 250 g of chilli powder, 2 kg of black gram and some packets of biscuit with remaining money. If he is having Rs. 1000, how many biscuit packets can be buy?
Baking soda is used ______. I. for making baking powder II. in soda-acid fire extinguishers III. to neutralize excess acid in the stomach
Baking soda is used
1. for making baking powder.
2. in soda-acid fire extinguishers.
3. to neutralise excess acid in the stomach.
The question consists of 2 statements, an assertion and a reason. The reader must determine whether each statement is true and then whether the reason holds true to the assertion.  Assertion- A. Fire extinguishers stop fire. Reason: R. Combustion cannot take place when there is lots of carbon dioxide in the atmosphere.
Which of the following fire extinguishers is suitable for a live electrical fire?