The answer is B. A only. The optimum valve timing is found through experimentation using an engine dynamometer. The timing of the opening and closing of the valves is called valve timing. So the use of dynamometer measures the power output of a machine that is why it can measure the optimum valve timing.
Answer:
Scanner can be used to read tokens from the console window (user input)
Explanation:
Scanner is a class used in some programming languages to obtain inputs from users.
It is mostly well developed in Java programming language and used exclusively for taking and obtaining inputs.
Scanner takes input in primitive types such as doubles, floats and integers. IT also takes string inputs.
Here is a code snippet where the class scanner is used:
Scanner input = new Scanner (System.in)
The code above creates an object of the scanner class
