Job Description  

 Subject Matter Expert 

 Mechanical Engineering  Delhi, India    

Your goal – to improve the education process and better the lives of students -- through content production.   

The Culture:  
Chegg’s culture celebrates leadership at all levels and does not discriminate based on job descriptions or titles. The culture is open, with our “fast feedback” system implemented to encourage transparency. You will be given latitude to drive and stretch to deliver mutual goals.   

The Role:  Subject Matter Expert  

A Subject Matter Expert (SME) is a vital source of knowledge, capability, or expertise in Mechanical Engineering. The SME functions as the organizational representative for his/her knowledge area and applies his/her expertise to support the strategic direction of the organization. He/she should be capable and willing to work on core subjects. 

The candidate must be- 

• Excellent in communication skills, both oral and written 
• Having a good hands knowledge on Mechanical Engineering concepts 
• Proficient with Computers. 
• Willing to work in rotational shifts and week-offs. 

Responsibilities:  

• Authoring of solutions which are related to Mechanical Engineering. 
• Online answering of Mechanical Engineering questions posted by students. 
• Quality review of solutions submitted by external answerers. 
• Rectification of errors in the existing content. 

• Online tutoring. 
• Video Content Reviews. 
• Work on domain specific Ad-hoc Projects. 

Requirements:                   

M.Tech from Mechanical Engineering. 

Freshers / Faculty - anyone with strong subject knowledge can apply. 

Syllabus: Core 

Fluid mechanics and turbo machinery  

• Boundary Layer Theory 
• Compressible Flow 
• Hydraulics & Pneumatic Valves 
• Hydraulic Machinery (Design and Operations)  
• Application of Bernoulli’s equation  

• Fluid Statics & Dynamics 
• Flow through pipes  

Material science and Automobile engineering  

• Atomic structure and interatomic bonding  

• Mechanical properties of metals  
• Phase diagrams  
• Failures in metals  
• Diffusion  
• Basic theory of Automobile engineering  

Engineering Mechanics  

• Force systems in a Plane (Equilibrium and Resultant and Internal forces)  
• Centroid and Moment of Inertia  
• Friction  

• Force Vectors (2-D and 3-D)  
• Kinematics of a Particle  
• Kinetics of particles (Force, acceleration, impulse and momentum)  
• Kinematics and Kinetics of rigid bodies. 

Heat and Mass Transfer  

• Concepts of Conduction, Convection and Radiation  
• Forced convection  
• Heat exchangers  
• LMTD and NTU method of heat exchanger analysis 

• Problems on Mass Transfer: Molecular Diffusion, Fick’s Law of Diffusion, Steady state molecular diffusion in fluids, Diffusion coefficient measurement and prediction.  

Thermodynamics  

• Zeroth law, First law and Second law of thermodynamics  
• Control volume analysis (SFE Equation)  

• Vapor power cycles & Gas power cycles 
• Problems on Chemical Reactions: Chemical and Phase Equilibrium. 

Strength of materials  

• Mechanical properties of Materials  

• Shear force and Bending moment diagrams. 
• Problems on Deflection of Beams: Using beam tables, superposition and singularity functions. 
• Stress and strain transformations  
• Torsion  
• Buckling of columns 

• Energy Methods: Stored Energy in elastic members, Castigliano’s Theorem and its application, Virtual work principles and its application, Finite Element Method. 

Machine Design  

• Vibrations 
• Kinematic Analysis of Links 

• Failure Theories: Maximum principal stress theory, Maximum shear stress theory, Maximum strain theory  
• Design of machine elements: Shafts, CAM, Belt drives, Keys, Gears, springs, Fly wheels, Bearings and Breaks  
• Weldments and Bolt Joints  

Manufacturing and Industrial Engineering 

• Casting, Forming, Joining 
• Machining and Machine Tools 
• Metrology 
• Inventory Control 
• Operations Research