True or False? A spark plug with two ground electrodes will provide two separate sparks when fired.   Why is high voltage needed to establish a spark across the gap of a spark plug? List the advantages of having one ignition coil per cylinder. Which of the following is a function of all ignition systems? a. To generate sufficient voltage to force a spark across the spark plug gap b. To time the arrival of the spark to coincide with the movement of the engine’s pistons c. To vary the spark arrival time based on varying operating conditions d. All of the above

Q: How spark advance mechanisms works in mechanical ignition system and what are its shortcomings?

A: The purpose of the spark advance mechanism is to assure that under every condition of engine…

Q: Define ignition?

A: It can be defined as the procedure in which something starts to burn. It is the process of starting…

Q: Time interval between ignition initiation and the actual start of combustion.

A:

Q: Time interval between ignition initiation and the actual start of combustion.

A:

Q: Why the maximum discharge rate should not be exceeded? a. Acetylene becomes unstable and could…

A: acetylene is non toxic ,odorless and very reactive gases , it can be used in gas cutting as well ass…

Q: a) Why should check-valves be fitted to gas welding torches? b) Why should fuel tanks be…

A: (a) Check valves are used as to prevent gasses from mixing upstream of them. As, when a flammable…

Q: True or False? Detonation is usually caused by retarded ignition timing.  a. True    b. False

A: Detonation is a phenomenon in the spark-ignition engine (SI engine). The phenomenon in which the end…

Q: State the firing order of a 4-cylinder engine. Draw a schematic diagram of the typical ignition…

A:

Q: Why double contact beaker is used in mechanical ignition system?

A: A contact breaker is a mechanical switch, actuated by a turning cam, that represents the deciding…

Q: Write the names of all ignition systems used in automobiles. Briefly explain the structural…

A: To explain: To define all ignition system used in automobile. Briefly explain features working…

Q: l angle will lead to the burning of condenser and contact points. 2. Too small a dwell angle wil

A: Because the self-ignition temperature of the fuel (Petrol) in a Spark Ignition Engine is very high…

Q: Magnetic pick up coll and hall effect device are used in ignition systems in order to: a) Amplify…

A: Given: There is a ignition system in which magnetic pick up coil and hall effect device are used.…

Q: If the spark line is totally flat, is longer than 2 ms, and is less than 500 volts, there is a good…

A: A sparkline is a line on a chart, that represents the time for which the spark lasts. The height…

Q: Write an article to discuss the following questions: Why does the spark need to be advanced before…

A: Title: The Importance of Spark Timing in Internal Combustion EnginesIntroduction: The ignition…

Q: A small horsepower Briggs engine's spark plug is firing too late. Tech a says that the spark plug…

A: Tech A is correct.

Q: Describe a gas ignition system

A: Ignition-The meaning of the word "igintion" is the action of starting to burn or making somethin to…

Q: the tip of the inner cone is the location of the maximum temperature in a neutral oxyacetylene…

A: Solution:   The Correct Option with necessary explanation is given below:

Q: Design an ignition system used for modern cars.

A:

Q: What does a slope in the spark line represent?

A: Sparklines are very small line graphs that are usually drawn without axes or coordinates. In a…

Q: It is appropriate to roll your pants and sleeves up when welding to avoid overheating True False 00

A: Clothing used during welding must cover the body with sufficient coverage so as to protect the skin…

Q: Which of the following is used as starter for a gas turbine O a. Low pressure turbine Ob. An…

A: Fro starting Gas turbine engines

Q: Why is it unsafe to carry butane lighters or matches inyour pockets while welding?

A: Because welding cylinders quickly catch fire, one should take care not to use butane lighters when…

Q: Which of the following gases are most frequently used as shielding to provide an inert atmosphere in…

A: It is required to choose correct option

Q: It prevent knocking because fuel with greater octane number has lower flame speed  True False

A: It prevent knocking because fuel with greater octane number has lower flame speed  True False

Q: A self-regulating arc is formed during GMAW: (while using small diameter electrode) if

A: Explanation A self-regulating arc or automatic welding we always used constant voltage power source…

Q: Discuss why Inverter type generators are much less noiser ?

A: Inverter generator is type of generator with electronic upgrade. This is used to adjust the engine…

Q: 43. The exposure at 25 cm from a radioactive source is 16 mR/h. At what distance will the exposure…

A: Initial exposure rate =I1=16mR/h at D1=25cmNow,New Exposure rate=64mR/h=I2Let new distance =D2We…

Q: In general, steel produced by the Basic Oxygen Furnace is of a better quality than the one produced…

A: Basic Oxygen Furnace It is a pear-shaped structure with a closed bottom and an open top. It is used…

Q: Tech a says, to avoid damage to the spark plug threads of an aluminum head, an anti-seize compound…

A: Tech A is correct as in case of aluminium head it was observed that dissimilar metals goes through…

Q: arc welding, the transformer will sup O High voltage and low current O High voltage and high current

A: Given Data : Arc Welding Transformer

Q: The gas has the pressure of 120 bar and critical pressure of 60 bar, then the reduced pressure of…

A: Given               Pressure = 120 bar  Critical pressure= 60 bar

Q: Which of the following steam traps is preferred primarily for plate and tube coils operating under…

A: Free Float traps are more vitality proficient and strong within the same administrations, so…

Q: The largest aluminum tube that should be flared with a double flare has an outside diameter of…

A: The largest aluminum tube that should be flared with a double flare has an outside diameter of

Q: The best type of propellant for engines that need to turn and and off multiple times during a…

A: Option d is the correct answer

Q: It appropriate to roll your pants leg and sleeves up when welding to avoid overheating. True False

A: Clothing to be used during welding must have sufficient coverage over the body and must be made of…

Q: Technician A installs a cup-type core plug with itsflanged edge outward. Technician B installs a…

A: Core plugs are used to close the holes created while molding engine block to remove the sand from…

Q: What is indicated by a LTFT reading of 24 percent?

A: Given Data : LTFT

Q: Reciprocating pumps are suitable for high pressures O a. True O b. False

A:

Q: Why is the procedure for checking the resistance of awaste spark ignition coil different from the…

A: A typical ignition coil is a pulse-type transformer with a soft iron core and two coil windings on…

Q: Di ignition systems are capable of producing higher electrical energy than the DIS ignit

A: given: Di ignition systems are capable of producing higher electrical energy than the DIS ignition…

Q: Halons are _________ a. nitrile and sulphonyl organic compounds b. chlorinated and brominated…

A: Halon may be any of a group of organohalogen compounds containing bromine and fluorine and one…

Clutches, Brakes, Couplings, and Flywheels

The clutch is described as a machine element used to connect or disconnect two shafts together to transmit torque or power. The clutch works on the principles of friction. The clutch is commonly used in automobiles to transfer power from the driving shaft to the driven shaft.