Question : Railway tracks are banked on curves so that

Option 1: the necessary centrifugal force may be obtained from the horizontal component of the weight of the train.

Option 2: no frictional force may be produced between the tracks and the wheels of the train.

Option 3: necessary centripetal force may be obtained from the horizontal component of the weight of the train.

Option 4: the train may not fall inwards.

Question : Select the option that expresses the given sentence in indirect speech.
The passenger says to the railway clerk, "Is the train late?"

Option 1: The passenger has asked the railway clerk whether the train is late.

Option 2: The passenger asked the railway clerk was the train late.

Option 3: The passenger asks the railway clerk was the train late.

Option 4: The passenger asks the railway clerk if the train is late.

Question : Directions: The weight of P is twice that of Q. The weight of Q is half that of R. The weight of R is 3 times the weight of T. The weight of T is half that of S. Who is the heaviest?

Option 1: P

Option 2: Q

Option 3: R

Option 4: P or R

Question : Directions: The weight of P is twice that of Q. The weight of Q is half that of R. The weight of R is 3 times of T. The weight of T is half that of S. The weight of T is greater than the weight of how many people among P, Q, R, and S?

Option 1: 1

Option 2: 0

Option 3: 3

Option 4: 4

Question : Directions: The weight of P is twice that of Q. The weight of Q is half that of R. The weight of R is 3 times that of T. The weight of T is half that of S. The weight of Q is greater than the weight of how many people among P, R, S, and T?

Option 1: 1

Option 2: 2

Option 3: 3

Option 4: 4

Question : Directions: Among five objects E, F, G, H, and K, the weight of H is 3 times the weight of K. The weight of G is 7.5 kg. The weight of E is twice the weight of F. The weight of K is 4 times the weight of G. If the weights of F and G are equal, then which is the second heaviest object?

Option 1: K

Option 2: H

Option 3: E

Option 4: F