How to learn driving a car

https://youtu.be/FWAD4ov36QY

Four wheel drive In the car

Four wheel drive:-
                                In this arrangement all the four wheels of the vehicle are driven by the engine does making the entire vehicle weight available for traction.

These four wheel drive vehicles are very useful on hill station if one of the wheel sleeping or skidding then the other excel will transmit the tractive force to the vehicle. the steering of the four wheel drive is hard to operate compare with other type of drive.

Advantages:-
1) traction is nearly double compare to two wheel drive layout.
2) give sufficient power this result in on parallel acceleration and drivability on surface with less than ideal group and superior engine braking on loose surfaces.

Disadvantages:-
1) the manufacturing cost of the vehicle is high.
2 more components and complicate transmission.

GST

GST
         It is a destination based tax on consumption of goods and services. It is proposed to be levied at all stages right from manufacture up to final consumption with credit of taxes paid at previous stages available as setoff. In a nutshell, only value addition will be taxed and burden of is to be borne by the final consumer. 

Measuring Instruments

1) linear Measurement-

A) Nonprecision instruments

a) Steel rule
b) calipers
c) Dividers
d) Telescopic gauge
e) Depth gauge

B) Precision Instruments

a) Micrometer
b) Vernier calipars
c) Height gauge
d) Slip gauge

2) Angular Measurments

A) Nonprecision instruments

a) protractors
b) Adjustable bevel
c) Engineers square
d) Combination set

B)  Precision Instruments

a)  Bevel Protractors
b) Dividing Head
c) Sine bar
d) Angle gauges
e) Spirit level
f) clinometers
g) Autocollimatos

3) Taper measuements

4) Surface measurments

Types of Loads

Types of Loads

Different types of loads  in engineering mechanics are compression, tension, torsion and bending.

Compression:

Compression loading is an effect in which the component reduces it size. During compression load there is reduction in volume and increase in density of a component.

Tension:

Tension is the act of stretching rod, bar, spring, wire, cable etc. that is being pulled from the either ends.

Torsion:

Torsion is the act of twisting of an rod, wire, spring etc. about an axis due to applied couple (torque).

Bending:

Bending is act of changing component from straight form into a curved or angular form.

Differential Introduction

Differential Introduction

A differential is a device, usually, but not necessarily, employing gears, capable of transmitting torque and rotation through three shafts, almost always used in one of two ways: in one way, it receives one input and provides two outputs—this is found in most automobiles - and in the other way, it combines two inputs to create an output that is the sum, difference, or average, of the inputs.

In automobiles and other wheeled vehicles, the differential allows each of the driving road wheels to rotate at different speeds.

The differential has three jobs:

1. To aim the engine power at the wheels

2. To act as the final gear reduction in the vehicle, slowing the rotational speed of the transmission one final time before it hits the wheels

3. To transmit the power to the wheels while allowing them to rotate at different speeds (This is the one that earned the differential its name.)