List of top Mechanical Engineering Questions

An aeroplane is flying at a height of 15 km, where the temperature is -50°C. Assuming \( k = 1.4 \) and \( R = 287 \, \text{J/K . kg} \), the approximate speed of the plane corresponding to \( M = 2.0 \) will be?

Which one of the following devices produces incremental motion through equal pulses?

Which of the following is the most accurate method to measure the diameter of a cylindrical object?

Automated Guided Vehicle (AGV) robots can be placed in the category of:

Proximity Sensors are used to:

The degrees of freedom of a SCARA robot are:

Using a robot with 1 degree of freedom and having 1 sliding point with a full range of 1m, if the robot's control memory has a 12-bit storage capacity, then the control resolution for the axis of motion will be:

The translatory joint in a robot is known as:

Match List-I with List-II

Choose the correct answer from the options given below:

Which one of the following symbols is used as the notation for designing arm and body of a robot, with joined arm configuration?

Which of the following is not an actuator?

Name of the device that selects between several analog or digital input signals and forwards the selected input to a single output line:

Simplex method is used for:

Which of the following describes the function of a sensor?

Arrange the following elements of a feedback control loop in the correct order: (A) Actuator (B) Error detection (C) Controller (D) Feedback sensor Choose the correct answer from the options given below:

The integration of CAD and CAM is known as:

Arrange the steps in the flow of power for a robotic arm, in the correct order:
(A) Controller sends signals to actuators
(B) Motion is transmitted to joints via gears or linkages.
(C) Input power source supplies energy
(D) Actuators convert electric energy into mechanical motion
Choose the correct answer from the options given below:

Arrange the following steps in the correct sequence for a basic mechatronic system: (A) Process the data in a micro-controller or processor (B) Generate a physical output using actuators (C) Sense input from the environment using sensors (D) Convert the output to a desired form (mechanical, electrical, etc.) Choose the correct answer from the options given below:

If 'A' is the optimistic time, 'B' is the pessimistic time and 'C' is the most likely time of an activity, then the expected time of activity is:

Sine bar is specified by:

Which of the following is a solid state joining process?

Feed drives in CNC milling are provided by:

A company requires 16,000 units of raw material costing Rs 2 per unit. The cost of placing an order is Rs 100 and the carrying costs are 10% per year per unit of the average inventory. The Economic Order Quantity (EOQ) is:

V-block used in the workshop to check: