GROUP MEMBERS

•DIVYA

•TANKESHWAR

•RONALD

•NARESH

•RAHUL

•ARVIND & AMIT

•SANJEEVAN

MENTOR

TEACHERS

Prof.: Jitesh pandey

Prof.: Sunaina sailani

Yeh toh sach hai kee bhagwan hai, hai magar phir bhee

anjan hai ….. 2

dharatee pe rup ma bap kaa, us vidhata kee pehchan

hai...

Yeh toh sach hai kee bhagwan hai…..

janmdata hai jo, naam jinse mila,

thamkar jinakee unglee hai bachpan chala

kandhe par baithke, jinke dekha jahan

gyan jinse mila, kya bura kya bhala

itne upkar hain kya kahe, yeh batana naa aasan hai

dharatee pe rup ma bap kaa, us vidhata kee pehchan

hai...

Yeh toh sach hai kee bhagwan hai…..

,

SCRIPTURE

READING

BY- RONALD

JOHN 6:35

“I am the bread of life” Jesus told

them. He who comes to me will

never be hungry; He who believes in

me will never be thirsty.

REFLECTIONJesus is the bread of

life. By saying the

Jesus meant that who

so ever believes in Him

and puts his trust on

Him will never be

hungry or thirsty. But if

you accept Jesus, You

will have eternal life.

BY:NARESH

THOUGHT OF THE DAY

TYPES OF STROKE

1.An Intake Stroke

2.A Compression Stroke

3.A Combustion Stroke also

called Power Stroke

4.An Exhaust Stroke

Intake Stroke: As the name suggests in this stroke the intake of fuel takes place. When the engine starts, the piston descends to the cylinder's bottom from the top. Thus the pressure inside the cylinder reduces. Now the intake valve opens and the fuel and air mixture enters the cylinder, valve then closes.

Compression Stroke: This stroke is known as

compression stroke because the compression

of the fuel mixture takes place at this stage.

When the intake valve closes (exhaust valve

is already closed), the piston forced back to

the top of the cylinder and the fuel mixture

gets compressed.

Combustion/Power Stroke: Now in case of petrol engine when the fuel mixture compresses to the maximum value the spark plug produces spark which ignites the fuel mixture. The combustion leads to the production of high pressure gases. Due to this tremendous force the piston is driven back to the bottom of the cylinder. As the piston moves downwards, the crankshaft rotates which rotates the wheels of the vehicle.

Exhaust Stroke: As the wheel moves to the

bottom the exhaust valve opens up and due to

the momentum gained by the wheel the piston

is pushed back to the top of the cylinder. The

gases due to combustion are hence expelled

out of the cylinder into the atmosphere

through the exhaust valve.

Q1 . In a piston the maximum

temperature occurs at

(A) ring section

(B) gudgeon pin

(C) top sides

(D) top center.

Ans :(D) top center

Q2. If a engine has spark plug, it

can be safely concluded that the

engine is

(A) not a diesel engine

(B) a two stroke petrol engine

(C) a four stroke petrol engine

(D) an air cooled petrol engine.

(A) piston size

(B) absence of valves

(C) cooling system

(D) lubrication system.

ANS: (B) absence of valves

A) Cast iron

(B) copper

(C) aluminum

(D) mild steel.

ANS: A) Cast iron

(A) 100

(B) 80 to 90

(C) 60 to 75

(D) 45 to 55

Answer: Option (D)

45 to 55.

INTERNATIONAL

TECHNICAL NEWS

CONCLUDING SONGDil dheere dheere dhadke hai aaj

Hone ko hai aaghaaz

Safar pe Chalne ka badhne ka

Itna hai Hausla

Mitna hai Faasla

Manzil ne mil hi jaana hai

O.. Khwabon se aage jaana hai

Humi se toh ummeedein hain

Humi se toh dilasa hai

Hami pe hain nigaahe bhi

Hami pe to Bharosa hai

Hum mein hai hero

Hum Mein hai Hero

Dil se kaho, hey, hai Hum Mein Hai Hero

Milke kaho, hey, hai Hum Mein Hai Hero

Hum mein hai hero

Hum mein hai hero...