Mock Test

Exam: RRB Group D Subject: General Science

Total Questions: 20

Q1. Antibodies are produced by which type of white blood cells?

Neutrophils Eosinophils Plasma cells (differentiated B cells) Basophils
Q2. Ohm's Law states the relationship between voltage, current, and:

Power Resistance Capacitance Inductance
Q3. Which hormone regulates blood sugar levels?

Thyroxine Adrenaline Insulin Estrogen
Q4. The electric field at a point is the force per:

Unit positive charge Unit negative charge Any charge Unit mass
Q5. What is the famous equation that relates mass and energy?

F = ma E = mc^2 PV = nRT KE = 1/2 mv^2
Q6. The E-factor (Environmental factor) is a metric that quantifies:

The energy efficiency of a chemical process The ratio of waste produced to the desired product The atom economy of a reaction The toxicity of a chemical
Q7. What happens to the focal length of a lens when it is immersed in a liquid with a refractive index greater than that of the lens material?

Increases Decreases Becomes zero Becomes infinite
Q8. Which of the following is a common example of an innate behavior in animals?

Learning to ride a bicycle Building a nest Solving a puzzle Reading a book
Q9. What is the primary function of red blood cells in the human body?

Fighting infection Transporting nutrients Transporting oxygen Clotting blood
Q10. The Doppler effect for sound is a consequence of:

Relativistic effects. The dependence of the speed of sound on frequency. The change in the effective distance between successive wavefronts reaching the observer. The change in the density of the medium.
Q11. The process by which platelets aggregate at the site of vascular injury to form a primary hemostatic plug is initiated by:

Thrombin activation Platelet adhesion to exposed collagen Fibrinogen polymerization Release of von Willebrand factor
Q12. What are the gaps in the myelin sheath called?

Synaptic clefts Nodes of Ranvier Axon terminals Dendritic spines
Q13. If the distance of the screen from the slits in Young's double-slit experiment is doubled, the fringe width will:

remain the same be halved be doubled become four times
Q14. The Doppler effect is observed for:

only sound waves only light waves both sound and light waves neither sound nor light waves
Q15. What is the IUPAC name for the carboxylic acid with the structure HOOC-CH2-CH2-COOH?

Succinic acid Butanoic acid Butanedioic acid Adipic acid
Q16. What is bioluminescence in genetically modified organisms often achieved by?

Adding genes from plants Adding genes from fireflies or jellyfish Adding genes from mammals Adding genes from bacteria
Q17. The chemical name for H2O2 is:

Water Dihydrogen dioxide Hydrogen peroxide Oxidane
Q18. Which force is weakest among the four fundamental forces?

Strong nuclear force Electromagnetic force Weak nuclear force Gravitational force
Q19. If a fungal pathogen significantly reduces the population of earthworms (detritivores) in a forest soil, which of the following would be the MOST likely consequence for the nutrient availability for the trees (producers)?

Nutrient availability would increase due to reduced consumption by earthworms. Nutrient availability would decrease due to slower decomposition and nutrient release. Nutrient availability would remain unchanged as fungi also decompose organic matter. Nutrient availability would increase due to increased competition for nutrients.
Q20. Quorum sensing in bacteria relies on the production and detection of small signaling molecules called autoinducers. This system allows bacteria to coordinate gene expression and behavior based on:

Oxygen availability Nutrient concentration Population density Temperature fluctuations

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