RRB ALP 2018 Previous Year GK Questions with Answers

Spirogyra is a green filamentous alga found in ponds, and when its filament grows long it simply breaks into two or more pieces.

A tissue is a group of cells that come from the same source, look alike and work together at one job.

Carbon occurs in nature in two ways, free and combined. In the free state the element stands alone, as in diamond, graphite and coal; diamond is pure carbon whose atoms are each joined to four others in a rigid three dimensional network, which is why it is the hardest natural…

The brain is divided into fore-brain, mid-brain and hind-brain, and the fore-brain is the main thinking part. Its largest portion is the cerebrum, whose folded outer layer holds separate areas for hearing, sight, smell and touch, for reasoning and memory, and for ordering voluntary movement.

Early Indian thinkers held that everything in the world is made of five basic elements, the panchamahabhuta: earth, water, fire, air and space or ether.

It is a reduction division: one parent cell with the full, diploid set gives four cells with half the number of chromosomes, the haploid set.

Malleability is the property by which a metal can be beaten into thin sheets without breaking, which is how aluminium foil and the sheets used in car bodies are made.

John Newlands arranged the fifty-six elements known in 1866 in order of increasing atomic mass, beginning with hydrogen, the lightest, and ending with thorium, the fifty-sixth.

The alkali metals are lithium, sodium, potassium, rubidium, caesium and francium. Each has a single electron in its outermost shell, loses it readily to form a positive ion, and therefore stands in group 1 of the modern periodic table.

The capacity of a shell is given by the formula 2n squared, where n is the number of the shell counted outward from the nucleus.

The mechanical energy of a body is the sum of the energy of its motion and the energy of its position.

A stretched bow stores elastic potential energy, and when the string is released that store becomes the kinetic energy of the flying arrow.

Work done against gravity is weight multiplied by height, so 120 × 2 = 240 joules.

Find each mass from F = ma, add the masses, then divide the same force by the total. The first block gives m1 = 5 ÷ 10 = 0.5 kg and the second gives m2 = 5 ÷ 20 = 0.25 kg.

Kinetic energy is half m v squared, so half of 22 multiplied by 5 multiplied by 5 gives 275 joules.

The body is thrown up at 20 m/s and gravity takes away 10 m/s of speed every second, so after 2 seconds its speed is zero.

At normal atmospheric pressure water stays liquid between 0 °C and 100 °C, and 12 °C lies inside that range.

Kinetic energy depends on the square of the momentum, so the momentum grows as the square root of the energy.

The stamen and the pistil make the male and female gametes, so they are the essential or reproductive organs of a flower.

Silver is a noble metal and does not combine with oxygen even when it is heated strongly. Metals react with oxygen according to their place in the reactivity series.