- I better knock on his door. ...
- There was a soft knock at the door. ...
- A knock at the door interrupted their conversation. ...
- If Annie’s abductor was still operating, that literally reversed the odds that we’d knock heads with him if he remained active! ...
- A knock sounded at his door.
How do you use knock it off in a sentence?
used to tell someone to stop doing something that annoys you : Oh, knock it off Alex, I’m really not in the mood for your jokes. Want to learn more?
What does it mean by knock?
Knock is a verb that means to hit something by bumping into it . Knock also means to repeatedly strike something to make a noise. Knock is used as a noun to mean a sound made by repeated tapping. Knock has many other senses as a verb and a noun. It is also used in several idioms.
What is knock used for?
1 : to strike in order to get someone’s attention I knocked before entering . 2 : to bump against something without intending to Careful! You knocked the lamp. 3 : to make a pounding noise The car’s engine began knocking.
What does give me a knock mean?
to be damaged because of a bad experience : Her confidence took a hard knock when her application was rejected.
What is knocking with example?
Knocking, in an internal-combustion engine, sharp sounds caused by premature combustion of part of the compressed air-fuel mixture in the cylinder . In a properly functioning engine, the charge burns with the flame front progressing smoothly from the point of ignition across the combustion chamber.
What does don’t knock it till you try it mean?
—used to tell a person that he or she should try something before criticizing it .
What is fuel knock?
Knocking occurs when fuel burns unevenly in your engine’s cylinders . When cylinders have the correct balance of air and fuel, fuel will burn in small, regulated pockets instead of all at once. (Think sparklers, not fireworks.) ... Engine knocking happens when fuel burns unevenly and those shocks go off at the wrong time.
What’s the meaning of knock on the door?
: to be very close to achieving a talented young singer who is knocking on the door of success .
What does it mean to narc on someone?
narced, narc·ing, narcs. To act as an informer; snitch. Phrasal Verb: narc on. To give an authority information about a crime or infraction committed by (someone); inform on: He was caught dealing drugs because his roommate narced on him.
What are effects of knocking?
Knocking can cause overheating of the spark-plug points, erosion of the combustion chamber surface, and rough, inefficient operation .
How knocking can be reduced?
Because pressure and temperature are strongly linked, knock can also be attenuated by controlling peak combustion chamber temperatures by compression ratio reduction , exhaust gas recirculation, appropriate calibration of the engine’s ignition timing schedule, and careful design of the engine’s combustion chambers and ...
How does a knocking engine sound?
Knock Knock. Who’s there? It’s your engine, letting you know there’s a problem somewhere under the hood. If the smooth rumble you’re used to coming from your engine is replaced with a repetitive tapping or pinging sound that becomes louder and faster as you accelerate , that’s a classic sign of engine knock.
Where did the saying don’t knock it till you try it?
The phrase “don’t knock it till you try it” comes from doors ; don’t knock to get someone’s attention to open it before trying the knob to see if it’s open.
How do you stop engine knocking?
- The first step in trying to fix engine knocking is to upgrade to gasoline with a higher octane rating. ...
- Give your engine a tune-up that includes new spark plugs and wires.
- Regularly change the oil in your vehicle and monitor for a low oil level.
What causes engine knocking startup?
In most cases, an engine knocking sound at start up is caused by hardware inside the cylinder head of the motor that is loose or is not properly lubricated . As the engine starts, and oil is circulated to the top of the motor, the knocking will subside. This type of noise can also be caused by a loose belt or pulley.
