RRB NTPC Practice Questions — All Questions
19 questions
A train travels 240 km in 4 hours. Its average speed is:
- a.50 km/h
- b.60 km/h✓
- c.70 km/h
- d.80 km/h
Speed = distance / time = 240 / 4 = 60 km/h.
The LCM of 4 and 6 is:
- a.12✓
- b.24
- c.6
- d.10
The least common multiple of 4 and 6 is 12.
30% of 200 is:
- a.30
- b.50
- c.60✓
- d.90
0.30 x 200 = 60.
If 5 pens cost 100, then 8 pens cost:
- a.120
- b.140
- c.150
- d.160✓
One pen = 20; 8 x 20 = 160.
Complete the series: 2, 4, 8, 16, ?
- a.24
- b.32✓
- c.20
- d.30
Each term doubles: 16 x 2 = 32.
Day is to Night as Light is to:
- a.Dark✓
- b.Sun
- c.Lamp
- d.Bright
Day/night and light/dark are opposite pairs.
Odd one out: Rose, Lotus, Jasmine, Mango
- a.Rose
- b.Lotus
- c.Mango✓
- d.Jasmine
Mango is a fruit; the others are flowers.
If A=1, B=2, C=3, then the sum of the letters in 'CAB' is:
- a.4
- b.5
- c.7
- d.6✓
C+A+B = 3+1+2 = 6.
The unit of electric current is the:
- a.Volt
- b.Ampere✓
- c.Watt
- d.Ohm
Electric current is measured in amperes.
The powerhouse of the cell is the:
- a.Mitochondrion✓
- b.Nucleus
- c.Ribosome
- d.Cell wall
The mitochondrion produces most of the cell's energy (ATP).
Water boils at what temperature at normal sea-level pressure?
- a.50°C
- b.90°C
- c.100°C✓
- d.120°C
Water boils at 100°C at standard atmospheric pressure.
The force that pulls objects toward the Earth is:
- a.Friction
- b.Magnetism
- c.Tension
- d.Gravity✓
Gravity pulls objects toward the Earth.
The largest planet in our solar system is:
- a.Saturn
- b.Jupiter✓
- c.Earth
- d.Mars
Jupiter is the largest planet.
The longest river in the world is generally considered the:
- a.Nile✓
- b.Ganga
- c.Amazon (contested with the Nile)
- d.Yangtze
The Nile is traditionally regarded as the longest river (the Amazon is a close contender).
The Indian national anthem was written by:
- a.Bankim Chandra Chatterjee
- b.Sarojini Naidu
- c.Rabindranath Tagore✓
- d.Mahatma Gandhi
'Jana Gana Mana' was written by Rabindranath Tagore.
Diamond is a form of which element?
- a.Iron
- b.Silicon
- c.Gold
- d.Carbon✓
Diamond is a crystalline form of carbon.
The Himalayas are an example of which landform?
- a.Plateau
- b.Mountain range✓
- c.Desert
- d.Plain
The Himalayas are a mountain range.
How many players are on the field per side in a standard game of cricket?
- a.Eleven✓
- b.Nine
- c.Seven
- d.Fifteen
A cricket team fields eleven players.
Which gas do plants absorb from the air for photosynthesis?
- a.Oxygen
- b.Carbon dioxide✓
- c.Nitrogen
- d.Helium
Plants absorb carbon dioxide for photosynthesis.