Question
What principle/law explains the working of the hydraulic
brakes in automobiles?Solution
Hydraulic brakes work on the principle of Pascal's law which states that "pressure at a point in a fluid is equal in all directions in space". According to this law when pressure is applied on a fluid it travels equally in all directions so that uniform braking action is applied on all four wheels. The hydraulic brake is an arrangement of braking mechanism which uses brake fluid, typically containing ethylene glycol, to transfer pressure from the controlling unit, which is usually near the operator of the vehicle, to the actual brake mechanism, which is usually at or near the wheel of the vehicle.
How is ‘feedback’ written in a code language?
I. In a certain code language ‘corporate office branch centre’ is written as ‘ki pa mt ...
Six persons S, T, U, V, W, and X live on different floors of a six-floor building. The bottommost floor is numbered as 1 and the topmost floor is number...
Five persons P, Q, R, S, and T live on five different floors. The bottom floor is numbered 1 and the top floor is numbered 5. Also, each of them was bor...
Amongst five bags A, B, C, D and E, each having a different weight. Which of the bag is heaviest?
I. Only two bags are heavier than D. D is hea...
The question given below consists of two statements numbered I and II given below it. You have to decide whether the data provided in the statements a...
What is Pankaj’s ranking among the boys in his class?
Statement I. There are 32 students in the class and Pankaj’s rank is second from the b...
Eight boxes are kept one above another in a stack. Which box is kept three boxes above U?
Statement I: X is two boxes above T. Y is one box be...
Seven persons B, K, Y, H, P, Q and Z are in a family. There are three married couples in a family.
How is K related to Q?
I) Y is maternal...
Which direction Mita is facing?
Statement I: Mita started walking from point P.
Statement II: She took two consecutive right turns.
In a row of 30 students facing north, what is Ankit’s position from the right end?
I. Akash is fourth to the right of Ankit and 24t...
