Exicom Trainee Mechanical Engineer Interview Questions and Answers

3 rounds with basic electronics and digital electronics questions

Q1. Wht is bjt wht is tht and all simple simple
Ans. 
BJT stands for Bipolar Junction Transistor. It is a three-layer semiconductor device used for amplification and switching.
• BJT is a type of transistor that consists of three layers of semiconductor material.

• It is commonly used in electronic circuits for amplification and switching purposes.

• There are two types of BJT: NPN (Negative-Positive-Negative) and PNP (Positive-Negative-Positive).

• BJTs have three terminals: the emi...read more
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Q2. Super introductionto iot andwomen
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Q1. Preparation of embedded
Ans. 
Preparation of embedded systems involves designing and integrating hardware and software components for specific applications.
• Identify the requirements and constraints of the embedded system

• Select appropriate hardware components such as microcontrollers, sensors, and actuators

• Design the software architecture including real-time operating systems and communication protocols

• Integrate hardware and software components to m...read more
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Q1. Material required for shaft,gear,pully manufacturing?
Ans. 
The materials required for shaft, gear, and pulley manufacturing include metals such as steel, cast iron, and aluminum.
• Shafts are commonly made from steel due to its strength and durability.

• Gears can be manufactured from materials like cast iron, steel, or even plastic depending on the application.

• Pulleys are often made from aluminum or steel, with steel being preferred for heavy-duty applications.

• Other materials like ...read more
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Q2. Different types of direction control valve?
Ans. 
Direction control valves are used to control the flow of fluid in a hydraulic or pneumatic system.
• Solenoid-operated directional control valve

• Manual directional control valve

• Pilot-operated directional control valve

• Proportional directional control valve

• Check valve
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Q3. Mechanical engineering drawing?
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Q4. What is sequence valve?
Ans. 
A sequence valve is a type of pressure control valve that opens and allows flow when a set pressure is reached.
• Sequence valves are used to ensure a specific sequence of operations in hydraulic systems.

• They are typically used in applications where multiple hydraulic cylinders need to be actuated in a specific order.

• When the pressure in the system reaches the set pressure of the sequence valve, it opens and allows flow t...read more
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