Question
Ultrasonic pulse echo technique, a non-destructive
ultrasonic testing, is employed for any possible flaw detection in a metallic bar of thickness 30 cm. If the arrival times of the ultrasonic pulses are 45 us and 90 us respectively, the distance of the flaw from one end of the steel bar at which the ultrasonic pulse initially enters the steel bar, will be:Solution
The correct answer is B
Which of the following is the first phase of a compiler?
In computer architecture, what is the role of the control unit in a CPU?
Which of the following grammars is suitable for top-down parsing?
Which data structure is commonly used in the implementation of recursive descent parsing?
Which of the following is the first phase of a compiler?
In LR parsing, what does the term "shift" mean?
Which of the following techniques is used to ensure that a database design eliminates redundant data?
Multithreading an interactive program will increase responsiveness to the user by ___________
Which of the following is NOT a type of intermediate code?
In a binary tree, which traversal method visits the root node first, then the left subtree, and finally the right subtree?
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