RRB NTPC Practice Questions — All Questions
5 questions
General Science (Stable)
The unit of electric current is the:
- a.Watt
- b.Volt
- c.Ampere✓
- d.Ohm
Electric current is measured in amperes.
General Science (Stable)
The powerhouse of the cell is the:
- a.Nucleus
- b.Mitochondrion✓
- c.Ribosome
- d.Cell wall
The mitochondrion produces most of the cell's energy (ATP).
General Science (Stable)
Water boils at what temperature at normal sea-level pressure?
- a.90°C
- b.50°C
- c.120°C
- d.100°C✓
Water boils at 100°C at standard atmospheric pressure.
General Science (Stable)
The force that pulls objects toward the Earth is:
- a.Gravity✓
- b.Magnetism
- c.Friction
- d.Tension
Gravity pulls objects toward the Earth.
General Science (Stable)
Which gas do plants absorb from the air for photosynthesis?
- a.Oxygen
- b.Helium
- c.Carbon dioxide✓
- d.Nitrogen
Plants absorb carbon dioxide for photosynthesis.