MECHANIC MOTOR VEHICLE THEORY SEMESTER – II MCQ JULY 2018 PART-5

   MECHANIC MOTOR VEHICLE THEORY         SEMESTER – II MCQ JULY 2018 PART-5
An alternator is also called ……….

a. Synchronous generator

b. Turbo generator

c. Asynchronous generator

d. Generator

Answer : a. Synchronous generator

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To get a maximum output current, IC regulation

are provided with

a. Radiation source

b. Heat sink

c. peak detector                                                                                                                                                             

d. None of these                                                                                                                                                                     

Answer : b. Heat sink

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3 - point starter is used to start the ……..  

a. Series motor

b. Shunt motor

c. Compound motor                                                                                                                                                                 d. only (b)and (c)                                                                                                                                                                      Answer : d. only (b)and (c)

The full form of MPF1 is ……….
a. Multi Point Fuel Injection
b. Multi Piston Fuel Injection

c. Main Point Fuel Injection

d. Multi Point Fuel Ignition

Answer : a. Multi Point Fuel Injection

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EGR stands for -

a. Exhaust Gas Recirculation

b. Engine Gas Recirculation

c. Engine Gas Recycling

d. Exhaust Gas Re-injection

Answer : a. Exhaust Gas Recirculation

To prevent overload and overheating of wires-

a. Fuses are used only

b. Circuit breakers are used only

c. Fuses and circuit breakers are used

d. Fuses and resistor are used

Answer : c. Fuses and circuit breakers are used

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The effects of  knocking are ……..

a. Noise and roughness

b. Mechanical damage .  

c. Carbon deposits

d   Allot these

Answer: a. Noise and  roughness

A hydraulic coupling belongs to the category of ………

a. Power absorbing machines

b. Energy transfer machines

c. Power developing machines

d. Energy generating machines

Answer: d. Energy generating machines

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In water cooling, the water in the jackets obtains heat from the.

Cylinders due to-
a. Conduction

b. Convection

c. Radiation                                                                                                                              

d. All of these

Answer: a. Conduction

Which of the following is the most abundant hydrocarbon

which is emitted into the atmosphere by biological activity?

a. Ethane

b. Methane

c. Poly Aromatic hydrocarbons

d. Pentane

Answer: b. Methane

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MECHANIC MOTOR VEHICLE THEORY SEMESTER – II MCQ JULY 2018 PART-3

     MECHANIC MOTOR VEHICLE THEORY            SEMESTER–II MCQ JULY 2018 PART-3

A typical cooling system circuit has the thermostat between …..

a. Engine outlet and radiator

b. Radiator outlet and engine inlet

c. Both (a) & (b)

d. None of these

Answer : a. Engine outlet and radiator

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Lubricating oil ………..

a. Minimizes wear in moving parts 

b. Helps in keeping the parts cool .     

c. Washes away and carries away

d. All of these

Answer : d. All of these

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Viscosity index (VI) is a measure for the change of  

viscosity with change in ………

a. Temperature

b. Pressure

c. Volume

d. All of these

Answer : a. Temperature

The following part is not lubricated by Pressure feed system …..

a. Timing gears

b. Valve rods and Push rods

c. Rocker arms

d. Main bearings of crankshaft

Answer : b. Valve rods and Push rods

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Supercharging -

a. Increases intake pressure

b. Increases intake temperature

c. Increases flame speed

d. All of these

Answer : d. All of these

Turbochargers are generally-

a. Centrifugal compressors

c. Vane blowers

b. Reciprocating compressors       

d. Roots blower

Answer : a. Centrifugal compressors

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In which of the following compressors,

a slip coupling is used between the engine

and compressor for the variable speed

operations of the engines?

a. Piston cylinder type

b  Root blower

c. Vane type blower

d. Centrifugal compressor

d. Centrifugal compressor

If  the temperature of intake air in I.C. engine is

lowered, then its efficiency will ………..

a. Increase

b. Decrease

c  Remain same

d.   No effect

Answer : a. Increase

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Air fuel ratio for idling speed of a petrol engine is approximately …

a. 1:1

b. 5:1

c. 10:1

d. 15:1

Answer : c. 10:1

A muffler between the exhaust manifold and

 the end of the exhaust pipe causes …………..

a. A decrease in exhaust gas pressure

b. An increase in exhaust gas pressure

c. No change in exhaust gas pressure

d. Either (a) or (b) .

Answer : b. An increase in exhaust gas pressure

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