← RRB-GROUP-D
RRB · General Science

21/12/2025 (4:30 PM - 6:00 PM) — General Science

2025 · 20 questions · First 10 Solutions Free
Questions 1–10 have full step-by-step solutions visible. Sign in to unlock all 20 →
Q1 mcq
Quickly pulling a hand back on touching a hot object is an example of ________.
a.
Conditioned action
b.
Hormonal action
c.
Reflex action Correct Answer
d.
Thinking action

No explanation saved for this question yet.

Q2 mcq
Which of the following gives the correct relation between the work done (W) in terms of force (F) acting on the body and the displacement (S) of the body in the same direction as the force?
a.
W = F + S
b.
W = F − S
c.
W = F/S
d.
W = F × S Correct Answer

No explanation saved for this question yet.

Q3 mcq
Which of the following is NOT a function of the stigma in the Hibiscus flower?
a.
Providing a sticky surface
b.
Facilitating pollen tube growth
c.
Producing male germ cells Correct Answer
d.
Receiving pollen grains

No explanation saved for this question yet.

Q4 mcq
Which of the following enzymes is present in saliva?
a.
No enzyme
b.
Salivary Protease
c.
Salivary Amylase Correct Answer
d.
Salivary Lipase

No explanation saved for this question yet.

Q5 mcq
Which of the following is detected by gustatory receptors in our body?
a.
Light
b.
Taste Correct Answer
c.
Sound
d.
Smell Test Date 21/12/2025 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.

No explanation saved for this question yet.

Q13 mcq
Carbohydrates produced in photosynthesis but not immediately used are stored as ________ in plants.
a.
cellulose
b.
starch Correct Answer
c.
glucose
d.
protein

No explanation saved for this question yet.

Q14 mcq
Which of the following statements about sound propagation is true?
a.
Sound is the fastest in gases, slower in liquids and the slowest in solids.
b.
Sound travels at the same speed in all mediums.
c.
Sound is the fastest in solids, slower in liquids and the slowest in gases. Correct Answer
d.
Sound can travel in a vacuum.

No explanation saved for this question yet.

Q15 mcq
What gas is typically released when ethanoic acid reacts with sodium carbonate?
a.
Hydrogen gas
b.
Methane gas
c.
Oxygen gas
d.
Carbon dioxide gas Correct Answer

No explanation saved for this question yet.

Q16 mcq
The gravitational force between the Earth and a body of mass ‘m’ kg is ‘F’ N. What will be the gravitational force between the body and the Earth if the mass of the body is increased to ‘4m’ kg? (Keep all the other parameters the same)
a.
F N
b.
F/2 N
c.
4F N Correct Answer
d.
F/4 N

No explanation saved for this question yet.

Q17 mcq
Which two physical properties allow metals to be drawn into thin wires and beaten into thin sheets, respectively?
a.
Ductility and malleability Correct Answer
b.
High melting point and solid state
c.
Sonorous and conductivity
d.
Lustre and hardness

No explanation saved for this question yet.

🎉 10 Free Sample Solutions Completed

Unlock All 20 Questions & Solutions

Sign up free in seconds to unlock step-by-step AI answers for the remaining 10 questions.

Q18 mcq
What type of chemical bond is typically formed when a metal reacts with a non-metal?
a.
Metallic bond
b.
Covalent bond
c.
Ionic bond
d.
Hydrogen bond
Correct Answer & Step-by-Step Solution Locked

Sign in free to reveal the correct answer and AI explanation for this question.

Q19 mcq
Which of the following is a colloidal solution?
a.
Sugar Solution
b.
Sand in Water
c.
Milk
d.
Salt Water
Correct Answer & Step-by-Step Solution Locked

Sign in free to reveal the correct answer and AI explanation for this question.

Q20 mcq
Rear-view mirrors of vehicles are usually __________.
a.
convex mirrors
b.
concave mirrors
c.
plane mirrors
d.
parabolic mirrors
Correct Answer & Step-by-Step Solution Locked

Sign in free to reveal the correct answer and AI explanation for this question.

Q21 mcq
Testes are located outside the abdominal cavity, called ________.
a.
Scrotum
b.
Penis
c.
Ureter
d.
Bladder
Correct Answer & Step-by-Step Solution Locked

Sign in free to reveal the correct answer and AI explanation for this question.

Q22 mcq
What is the primary function of the kidneys in human beings?
a.
To filter nitrogenous waste materials from the blood
b.
To transport glucose and hormones throughout the body
c.
To absorb oxygen and release carbon dioxide
d.
To regulate digestion and nutrient absorption
Correct Answer & Step-by-Step Solution Locked

Sign in free to reveal the correct answer and AI explanation for this question.

Q23 mcq
A force (F) of 60 N acts on a mass (m) of 6 kg. What will be the acceleration (a) produced by this force?
a.
10.0 m/s2
b.
360.0 m/s2
c.
6.0 m/s2
d.
0.10 m/s2
Correct Answer & Step-by-Step Solution Locked

Sign in free to reveal the correct answer and AI explanation for this question.

Q24 mcq
Consider the following statements and select the correct option. Statement A: Washing soda is obtained by heating baking soda strongly. Statement B: It is used in glass, soap and paper industries.
a.
Both statements A and B are correct.
b.
Statement A is incorrect but B is correct.
c.
Statement A is correct but B is incorrect.
d.
Both statements A and B are incorrect.
Correct Answer & Step-by-Step Solution Locked

Sign in free to reveal the correct answer and AI explanation for this question.

Q25 mcq
The twinkling of stars is more pronounced when _______.
a.
the moon is bright
b.
the sky is cloudy
c.
the star is at the zenith
d.
the star is near the horizon
Correct Answer & Step-by-Step Solution Locked

Sign in free to reveal the correct answer and AI explanation for this question.

Q26 mcq
Correct Answer & Step-by-Step Solution Locked

Sign in free to reveal the correct answer and AI explanation for this question.

Q27 mcq
If the marked price of a towel is 85% more than its cost price and a discount of 20% is announced on it, then find the profit percentage.
a.
48%
b.
47%
c.
49%
d.
45%
Correct Answer & Step-by-Step Solution Locked

Sign in free to reveal the correct answer and AI explanation for this question.