No, it will not cause the engine to knock.
Check your motor mounts and what your at it check trans mounts.
no but it can cause motor to lock up because no air flow
Possibly a bad motor mount
It can affect the way the engine idles, the pistons fire, or the acceleration behavior. If the engine is revved up it may cause misfiring, motor vibration or backfires. Accelerating might be hesitant, and engine shaking during engine idle might happen.
Vibrations,
NO, but it will cause bad engine performance
You can feel the engine running inside the car not necessarily vibration but it can cause vibration but for sure you can feel the engine running at your foot.
Yes, If to much leaks out this will cause the engine to over heat, smoke and or stall hence the name engine COOLant :)
The motor chokes at full throttle because either the exhaust valves are bad and cause the motor to loose compression at full throttle or the carb has an air leak.
Of course it can. It depends on how worn the mount is and how far the engine is lifting on acceleration. It can cause hard shifting, clunking. Not to mention it can damage your hood if the engine torques enough to leave the mount and strike the hood. Motor mounts should be repaired as soon as possible.
Blown Fuse, Bad relay, bad fan motor.