In cattle farming, milk-producing buffaloes are called _______.
a.
broilers
b.
shellfish
c.
layers
d.
milch
Correct Answer
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Q2mcq
Which of the following hydrocarbons contains a branched chain?
a.
Ethene
b.
Isobutane
Correct Answer
c.
Butane
d.
Methane
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Q3mcq
The process of converting farm waste material into decomposed matter rich in organic matter and nutrients is called:
a.
Green Manuring
b.
Fertilization
c.
Pollination
d.
Composting
Correct Answer
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Q4mcq
The type of pollination where pollen grains are transferred from one flower to another of the same species through wind is called _____________.
a.
hydrophily
b.
ornithophily
c.
entomophily
d.
anemophily
Correct Answer
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Q5mcq
Why is the plasma membrane called a selectively permeable membrane?
a.
It allows free and equal movement of all substances.
b.
It prevents all materials from entering or leaving the cell.
c.
It allows only certain substances to pass through while restricting others.
Correct Answer
d.
It controls energy production for the entire cell. Test Date 27/12/2025 Test Time 4:30 PM - 6:00 PM Subject RRB Level 01 Stage I * Note Correct Answer will carry 1 mark per Question. Incorrect Answer will carry 1/3 Negative mark per Question. 1. Options shown in green color with a tick icon are correct. 2. Chosen option on the right of the question indicates the option selected by the candidate.
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Q6mcq
In a sound wave, the particles of the medium _____.
a.
rotate continuously
b.
vibrate perpendicular to the direction of wave propagation
c.
vibrate along the direction of wave propagation
Correct Answer
d.
do not vibrate
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Q7mcq
The reaction NaOH + HCl → NaCl + H 2 O is an example of:
a.
Precipitation reaction
b.
Double displacement reaction
Correct Answer
c.
Decomposition reaction
d.
Displacement reaction
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Q8mcq
The number of protons in an element with atomic number 10 is:
a.
8
b.
6
c.
5
d.
10
Correct Answer
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Q9mcq
Burrs with hooks or spines are commonly dispersed by which of the following?
a.
Gravity
b.
Water
c.
Air
d.
Animals
Correct Answer
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Q10mcq
Which of the following statements is NOT correct about an electric circuit?
a.
Current is a result of flow of electrons
b.
A switch helps to open or close the circuit
c.
The direction of conventional current is opposite to the flow of electrons
d.
Current flows in an open circuit
Correct Answer
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Two pipes, A and B, together fill a tank in 8 hours. If they are opened separately, then B would take 12 hours more than A to fill the tank. Find the time taken (in hours) by A to fill the tank separately.
a.
12
b.
24
c.
16
d.
18
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