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WorksheetsME 8091 AUTOMOBILE ENGINEERING
Total questions: 20
Worksheet time: 15mins
In a four-stroke engine each cylinder has
One valve
Two valves
Three valves
Four valves
The motion of the cam is transferred to the valves through
Pistons
Rocker Arm
Cam shaft Pulley
Valve stems
What type of bearing is used for main bearings and connecting rod bearings?
Ball bearings
Plain bearings
Needle roller bearing
Taper roller bearing
In an isolated system, ________ can be transferred between the system and its surrounding.
Only energy
Only mass
both energy and mass
neither energy nor mass
Which of the following energy conversion devices convert heat into work?
Electrical generators
I. C engines
Condensers
All of the above
What is meant by gear ratio?
The ratio of pinion speed and gear speed
The ratio of number of teeth on pinion and number of teeth on gear
Both a. and b
None of the above
Deformation per unit length is called as ________
strain
stress
Modulus of Elasticity
None of the above
Shear stress in static fluid is
Always Zero
Always Maximum
Between zero to maximum
Unpredictable
Heat transfer takes place as per –
zeroth law of thermodynamics
first law of thermodynamics
second law of the thermodynamics
Kirchhoff law (e) Stefan’s law
The unit of force in S.I. units is
Kilogram
Newton
Watt
Dyne
Effect of a force on a body depends upon
Magnitude
Direction
Position or Line of action
All the above
Diesel fuel, compared to petrol is
less difficult to ignite
just about the same difficult to ignite
more difficult to ignite
highly ignitable
The- most efficient method of compressing air is to compress it
Isothermally
Adiabatically
Isentropically
Isochronically
Ratio of indicated H.P. and brake H.P. is known as
Mechanical efficiency
Volumetric efficiency
Thermal efficiency
Relative efficiency
The bituminous coal is non-caking if its carbon content is
78 – 81%
81 - 85%
85 – 90%
90 – 95%
Bomb calorimeter is used to determine
Higher calorific value at constant volume
Lower calorific value at constant volume
Higher calorific value at constant pressure
Lower calorific value at constant pressure
The torque available at the contact between driving wheels and road is known as
brake effort
tractive effort
Clutch effort
None of these
Odometer is an instrument used for measurement of
power
Fuel consumption
Engine speed
distance
Which of the following is not an automobile?
Motor cycle
passenger car
Aeroplane
Truck
The purpose of transmission in an automobile is
to vary the speed of automobile
to vary the torque at the wheels
to vary the power of automobile
None of the above
