Question : The highest source of air pollution in the world is

Option 1: Automobiles

Option 2: Industries

Option 3: Household wastes

Option 4: Aircraft

Question : A truck covers a distance of 550 metres in one minute whereas a bus covers a distance of 33 km in $\frac{3}{4}$ hour. Then the ratio of their speeds is:

Option 1: 1 : 3

Option 2: 2 : 3

Option 3: 3 : 4

Option 4: 1 : 4

Question : Select the sentence with the appropriate use of preposition.

Option 1: Ashok was in the bus stop.

Option 2: Ashok was to the bus stop.

Option 3: Ashok was on the bus stop.

Option 4: Ashok was at the bus stop.

Question : Direction: Which one of the given responses would be a meaningful order of the following?

1. Absorption

2. Digestion

3. Nutrition

4. Excretion

Option 1: 3, 1, 2, 4

Option 2: 2, 1, 3, 4

Option 3: 3, 4, 2, 1

Option 4: 3, 2, 1, 4

Question : If $a^{3}+\frac{1}{a^{3}}=2$, then the value of $\frac{a^{2}+1}{a}$ is ($a$ is a positive number):

Option 1: 1

Option 2: 2

Option 3: 3

Option 4: 4