Mechanic Motor Vehicle - 2 Year MCQ 18

 Mechanic Motor Vehicle -  2 Year MCQ 18

MMV 2 YEAR ALL QUESTION ANSWER HERE

281 : What is the name of sensor?

A : Temperature sensor 

B : Throttle position sensor 

C : Crank shaft position sensor 

D : Pressure sensor

Correct Answer:- D : Pressure sensor

282 : What is the type of sensor?

A : Pressure sensor 

B : Temperature sensor 

C : Throtte position sensor  

D : Magnetic induction sensor

Correct Answer:- B : Temperature sensor

283 : What is the name of part marked as ‘X’ in the spark plug?

A : Body  

B : End cap 

C : Insulator

D : Centre electrode

Correct Answer:- C : Insulator

284 : What is the permitted spark plug gap in general?

A : 2.83 mm 

B : 2.03 mm 

C : 2.53 mm 

D : 2.92 mm

Correct Answer:- B : 2.03 mm 

285 : What is the name of part marked as ‘X’ in the distributor?

A : Rotor 

B : Condensor 

C : Distributor cap

D : Cam 

Correct Answer:- B : Condensor 

286 : What is the name of part marked as ‘X’ in the centrifugal advance mechanism?

A : Centrifugal weights  

B : Distributor cap

C : Distributor shaft 

D : Breaker plate 

Correct Answer:- C : Distributor shaft 

287 : What is the name of part marked as ‘X’ in the vacuum advance mechanism?

A : Vacuum unit 

B : Diaphragm

C : Breaker plate 

D : Distributor 

Correct Answer:- B : Diaphragm

288 : How many spark plugs are ignited at the same time in the distributor less ignition system?

A : Two

B : Three 

C : Four 

D : Five 

Correct Answer:- A : Two

289 : What is the function of distributor in the battery ignition system? 

A : Distribute high tension current from ignition coil to secondary winding

B : Distribute high tension current flow ignition coil to spark plugs 

C : Opens and closes the secondary circuit of coil  

D : Distribute low tension current to ignition coil 

Correct Answer:- B : Distribute high tension current flow ignition coil to spark plugs 

290 : What is the purpose of condensor in the ignition system? 

A : Distribute high tension current to spark plugs 

B : Insulate spark plug electrodes 

C : Prevents arcs at the points

D : Open and close the primary circuit

Correct Answer:- C : Prevents arcs at the points

291 : What is the achived through spark plug end gap design? 

A : Improve combustion swirl 

B : Increase the fuel pressure 

C : Improve fuel atomisation 

D : Helps for the complete ignition

Correct Answer:- A : Improve combustion swirl 

292 : Why many engines use spark plugs with tapered seats?

A : Helps in easy fitting 

B : Produce correct alignment 

C : Provide clearance space 

D : Produce good sealing 

Correct Answer:- D : Produce good sealing 

293 : What will be the effect of the long heat path travel in the spark plug? 

A : Spark plug will run cooler

B : Life of spark plug increased 

C : Spark plug will run hot

D : Improper atomisation 

Correct Answer:- C : Spark plug will run hot

294 : What is the purpose of breaker plate in the distributor?  

A : Acts as contact breaker 

B : Prevents dirt, carbon into distributor 

C : Conduct the ignition surge to the electrode

D : Distribute high tension surge to ignition coil

Correct Answer:- B : Prevents dirt, carbon into distributor 

295 : Which electronic control system prevent stalling of engine when additional loads are placed on the engine?  

A : Fuel injection control system 

B : Fuel pump control system

C : Idle speed control system 

D : Ignition control system 

Correct Answer:- C : Idle speed control system 

296 : How much is the difference in resistance is permitted in the temperature sensor unit? 

A : More than 100 ohms 

B : More than 150 ohms

C : More than 200 ohms  

D : More than 400 ohms

Correct Answer:- C : More than 200 ohms 

297 : What is the function of thermo time switch in engine control module? 

A : Sense exhaust gas temperature 

B : Sense engine coolant temperature 

C : Indicate lubricant temperature 

D : Indicate fuel temperature 

Correct Answer:- B : Sense engine coolant temperature 

298 : Which instrument indicate engine RPM in the engine control module?  

A : Pyno meter

B : Tachometer 

C : Galvano meter 

D : Hydro meter 

Correct Answer:- B : Tachometer 

299 : Where the engine control module installed in the engine? 

A : Under side of instrument panel

B : In the gear box assembly 

C : Near the fly wheel

D : Front side of radiator 

Correct Answer:- A : Under side of instrument panel

300 : Which electronic control system supplies optimum air fuel mixture to the combustion chamber under different driving condition? 

A : Idle speed control system

B : Fuel injection control system 

C : Ignition control system

D : Oil pump control system

Correct Answer:- B : Fuel injection control system 

301 : Which part of electronic fuel injection system controls opening of bypass air passage?  

A : Pressure relief valve 

B : Idle air control valve 

C : Throttle valve 

D : Check valve

Correct Answer:- B : Idle air control valve 

302 : Which part of ignition system connects and disconnects primary circuit? 

A : Distributor 

B : Condenser 

C : Contact breaker

D : Ignition coil

Correct Answer:- C : Contact breaker

303 : What is the function of ignition coil? 

A : Step up low voltage to high voltage 

B : Step down high voltage to low voltage 

C : Connect the primary circuit to ignition switch

D : Disconnect the secondary circuit to distributor

Correct Answer:- A : Step up low voltage to high voltage 

304 : Which sensor located in the intake manifold or throttle body? 

A : Mass air flow sensor 

B : Oxygen sensor 

C : Hall effect sensor 

D : Air vertex sensor 

Correct Answer:- A : Mass air flow sensor 

305 : Which type of sensor located at the exhaust manifold?

A : Hall effect sensor 

B : Oxygen sensor

C : Air vertex sensor 

D : Mass air flow sensor

Correct Answer:- B : Oxygen sensor