Question
31
सामान्य विज्ञान
Name the device that measures and displays the instantaneous speed of a vehicle.
(A)
Speedometer
(B)
Lactometer
(C)
Barometer
(D)
Hydrometer
Correct Answer:
Speedometer
Explanation:
A speedometer measures and displays the instantaneous speed of a vehicle.
A speedometer measures and displays the instantaneous speed of a vehicle.
Question
32
वनस्पति विज्ञान
Which of the following is a leguminous plant?
(A)
Pea
(B)
Cabbage
(C)
Potato
(D)
Tomato
Correct Answer:
Pea
Explanation:
Pea is a leguminous plant. Rhizobium bacteria in its roots help in nitrogen fixation.
Pea is a leguminous plant. Rhizobium bacteria in its roots help in nitrogen fixation.
Question
33
रसायन विज्ञान
Potassium belongs to which family of elements?
(A)
Noble gases
(B)
Halogens
(C)
Alkali metals
(D)
Alkaline earth metals
Correct Answer:
Alkali metals
Explanation:
Potassium belongs to Group 1 of the periodic table and is an alkali metal.
Potassium belongs to Group 1 of the periodic table and is an alkali metal.
Question
34
भौतिक विज्ञान
Resistance (R) = Voltage (V) / ?
(A)
Work (J)
(B)
Current (I)
(C)
Power (P)
(D)
Charge (Q)
Correct Answer:
Current (I)
Explanation:
According to Ohm's law, the relationship between resistance R, voltage V and current I is R = V/I.
According to Ohm's law, the relationship between resistance R, voltage V and current I is R = V/I.
Question
35
रसायन विज्ञान
Which gas is evolved when ethanol reacts with sodium?
(A)
Hydrogen
(B)
Oxygen
(C)
Methane
(D)
Chlorine
Correct Answer:
Hydrogen
Explanation:
Ethanol reacts with sodium to form sodium ethoxide and hydrogen gas.
Ethanol reacts with sodium to form sodium ethoxide and hydrogen gas.
Question
36
जीव विज्ञान
In which organ is Bowman's capsule found?
(A)
Liver
(B)
Kidney
(C)
Pancreas
(D)
Stomach
Correct Answer:
Kidney
Explanation:
Bowman's capsule is a part of the nephron of the kidney and contains the glomerulus.
Bowman's capsule is a part of the nephron of the kidney and contains the glomerulus.
Question
37
भौतिक विज्ञान
Which force is required to oppose an object sliding over a surface?
(A)
Static friction
(B)
Rolling friction
(C)
Sliding friction
(D)
Contact friction
Correct Answer:
Sliding friction
Explanation:
When an object slides over a surface, the frictional force opposing its motion is called sliding or kinetic friction.
When an object slides over a surface, the frictional force opposing its motion is called sliding or kinetic friction.
Question
38
रसायन विज्ञान
What is the color of phenolphthalein in an acidic solution?
(A)
Colorless
(B)
Pink
(C)
Yellow
(D)
Orange
Correct Answer:
Colorless
Explanation:
Phenolphthalein remains colorless in acidic and neutral solutions and turns pink in an alkaline solution.
Phenolphthalein remains colorless in acidic and neutral solutions and turns pink in an alkaline solution.
Question
39
जीव विज्ञान
Which of the following diseases is commonly spread by mosquitoes?
(A)
Malaria
(B)
Jaundice
(C)
Smallpox
(D)
Arthritis
Correct Answer:
Malaria
Explanation:
Malaria is transmitted through the bite of an infected female Anopheles mosquito.
Malaria is transmitted through the bite of an infected female Anopheles mosquito.
Question
40
जीव विज्ञान
Citrus fruits are considered a rich source of which vitamin?
(A)
Vitamin A
(B)
Vitamin B
(C)
Vitamin C
(D)
Vitamin D
Correct Answer:
Vitamin C
Explanation:
Oranges, lemons and other citrus fruits are good sources of vitamin C.
Oranges, lemons and other citrus fruits are good sources of vitamin C.
Total Questions:
150
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