MCQ
Vanpal General Studies with Special Reference to Rajasthan MCQ - Practice Questions with Answers
Solve 75 Vanpal General Studies with Special Reference to Rajasthan questions for RAS/RPSC preparation.
Practice questions
Q1In photosynthesis by green plants, which pair is mainly taken in from outside and converted into carbohydrates in the presence of sunlight and chlorophyll?
Green plants are autotrophs. They take carbon dioxide and water from their surroundings and, using chlorophyll and sunlight, make carbohydrates that can be used or stored by the plant.
Q2Baking soda is used in some antacids mainly because it:
Baking soda, chemically sodium hydrogencarbonate, is alkaline enough to neutralise excess acid. That is why it can provide relief from acidity when used appropriately in antacid preparations.
Q3Why are handles of many cooking utensils made of wood or plastic?
Metals conduct heat well, but wood and plastic are poor conductors. This is why they are commonly used for utensil handles to reduce heat transfer to the hand.
Q4What is produced around a straight conductor when electric current flows through it?
The magnetic effect of electric current means that a current-carrying conductor produces a magnetic field around it. This is the principle behind simple electromagnets and many electrical devices.
Q5Rusting of an iron nail mainly requires which condition?
Iron rusts when it comes in contact with moist air. Keeping iron dry or coated prevents the simultaneous contact with water and oxygen needed for rust formation.
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More questions
6Which microorganism is commonly used in the fermentation of dough for making bread?
7The frequency of a sound wave is measured in which SI unit?
8In a salt-water solution at a fixed temperature, no more salt dissolves even after stirring. What is this solution called?
9A person can see nearby objects clearly but cannot see distant objects clearly. Which lens is generally used to correct this defect?
10Which feature is typical of a saturated hydrocarbon?
11In photosynthesis by green plants, which gas is released as a by-product?
12In plants, which tissue mainly transports water and mineral nutrients from roots to other parts?
13The reddish-brown coating formed on iron articles kept in moist air is called:
14Which mirror is commonly used in torches and vehicle headlights to obtain a strong nearly parallel beam of light?
15Anaemia is commonly caused by deficiency of which nutrient in the diet?