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Consider the following statements for multi-jet carburettor:
1. Acceleration jet is located just behind the throttle valve.
2. Idle jet is located close to the choke.
3. Main jet alone supplies petrol at normal engine speed.
Which of these statements are correct?
  • a)
    1, 2 and 3
  • b)
    1 and 2
  • c)
    2 and 3
  • d)
    1 and 3
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Consider the following statements for multi-jet carburettor:1. Accele...
Idle jet is located close to butterfly valve (Throttle)
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Consider the following statements for multi-jet carburettor:1. Accele...
Statement 1: Acceleration jet is located just behind the throttle valve.
The acceleration jet is responsible for supplying additional fuel during rapid acceleration or high engine load conditions. It is located just behind the throttle valve in the carburetor. This position allows the acceleration jet to provide the necessary fuel mixture when the throttle is opened quickly, ensuring smooth and responsive acceleration. Therefore, statement 1 is correct.

Statement 2: Idle jet is located close to the choke.
The idle jet is responsible for supplying fuel during idle or low engine speed conditions. It is located close to the choke in the carburetor. The choke is used to enrich the air-fuel mixture during cold starts. By placing the idle jet close to the choke, it ensures that the engine receives the appropriate fuel mixture during idle, ensuring stable idling. Therefore, statement 2 is correct.

Statement 3: Main jet alone supplies petrol at normal engine speed.
The main jet is responsible for supplying fuel during normal engine speed conditions. It delivers the majority of the fuel required for the engine to operate at its regular power output. While the other jets, such as the acceleration jet and idle jet, provide additional fuel during specific engine conditions, the main jet is the primary fuel supply at normal engine speed. Therefore, statement 3 is correct.

Therefore, all the statements are correct, and the correct option is option D) 1 and 3.
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Consider the following statements for multi-jet carburettor:1. Acceleration jet is located just behind the throttle valve.2. Idle jet is located close to the choke.3. Main jet alone supplies petrol at normal engine speed.Which of these statements are correct?a)1, 2 and 3b)1 and 2c)2 and 3d)1 and 3Correct answer is option 'D'. Can you explain this answer?
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