NMDC Limited Executive Trainee Interview Questions and Answers

Newton's laws of motion describe the relationship between an object and the forces acting on it.

• First law: An object at rest stays at rest, and an object in motion stays in motion unless acted upon by an external force.

• Second law: The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.

• Third law: For every action, there is an equal and opposite reactio...read more

Ohm's Law states that the current flowing through a conductor is directly proportional to the voltage across it and inversely proportional to the resistance.

• Ohm's Law formula: V = I * R (Voltage = Current * Resistance)

• Current (I) is measured in Amperes (A)

• Voltage (V) is measured in Volts (V)

• Resistance (R) is measured in Ohms (Ω)

• Example: If a circuit has a voltage of 12V and a resistance of 4Ω, the current flowing throu

The name of transformer in Hindi language is 'ट्रांसफार्मर'.

• The word 'transformer' is translated to 'ट्रांसफार्मर' in Hindi.

• It is pronounced as 'traans-faar-mer' in Hindi.

• In written form, it is represented as 'ट्रांसफार्मर'.

To reduce deformation in a beam hinged on both ends with a load applied in between, additional measures can be taken.

• Increase the beam's cross-sectional area to improve stiffness

• Use materials with higher modulus of elasticity

• Add support columns or braces to reduce bending

• Distribute the load more evenly along the beam

• Reduce the span length of the beam for better support

Types of gears include spur gears, helical gears, bevel gears, worm gears, and rack and pinion gears.

• Spur gears have straight teeth and are the most common type of gear.

• Helical gears have angled teeth for smoother and quieter operation.

• Bevel gears have cone-shaped teeth and are used to change the direction of rotation.

• Worm gears have a screw-like appearance and provide high gear reduction ratios.

• Rack and pinion gears c