Mech Engineering: IC/Automobile Engine III Online Test

Which aspect is not true in the context of contact breaker?
Contact points are generally made of tungsten
Excessive gap results in rapid burning of points
Points are opened by the cam and closed by the spring tension
Spark occurs when the points are open
Which aspect is not true in the context of frameless construction when compared to conventional framed construction?
Increased stability
Reduced weight
Greater strength and durability
Passenger safety during accidents
Lower manufacturing cost when produced on mass scale
The ignition coil in a automobile acts as a
Rectifier
Switch
Step-up transformer
dc to ac converter
An automobile engine is usually mounted at……..point.
Two
Three
Four
Five
Engines are usually rubber mounted to
Reduce the transmission of vibration between the engine and body
Prevent the heat from passing between the engine and body
Prevent the flow of electricity between the engine and body
Prevent the road shocks from reaching the engine
The purpose of ignition coil in the ignition system of a petrol engine is to
Increase the voltage
Reduce sparking in the system
Distribute high currents to the engine cylinder
Regulate the current produced by the dynamo
The part of the vehicle which holds the passenger and cargos to be transported is called
Cabin
Hull
Chasis
Coupe
Frame
A normal type of coil in a conventional ignition fitted to a four cylinder engine has three cables connected to it. The thick, highly insulated cable connects the coil with
Battery
Spark plug
Distributor-cap carbon brush
Distributor-cap terminal which is earthed to the contact breaker to avoid the danger of fire
What is often called the fuel of future?
Hydrogen
Methane
Ethanol
Natural gas
What carries the driving wheels of a vehicle?
Crankshaft
Crank and slider
Propeller shaft
Axles
Gasohol, a fuel for running cars, is a mixture of alcohol with
Methane
Petrol
Hydrogen
Natural gas
Which is the false statement about a torque converter?
The blades have a curved shape
The oil is driven by the impeller unit
The stator unit redirects the flow of oil to the impeller
Maximum torque multiplication occurs at low speed
The basic automobile structure consists of frame, axles, wheels and
Steering
Suspension
Brakes
Differential gear
The calorific value of petrol is about
7500 kcal/kg
8200 kcal/kg
10200 kcal/kg
14500 kcal/kg
Consider the following statements volumetric efficiency of diesel engines is higher than that of petrol engines when a SI engine is throttled, its mechanical efficiency decreases specific fuel consumption increases as power capacity of the engine increases inspite of higher compression ratios, the exhaust temperature is diesel engines is much lower than that in petrol engines Which of these statements are correct:
1, 2, 3 and 4
1, 2 and 3
3 and 4
1, 2 and 4
Average percentage of carbon and hydrogen in petrol fuel is roughly given by
C =50%, H2=50%
C =60%, H2=40%
C =70%, H2=30%
C =85%, H2=15%
Paraffins in petrol have the general formula
CnH2n
CnH2n+2
CnH2n+4
CnHn
Vapour lock refers to
Supply of air-fuel mixture containing liquid particles
Blocking of carburetor jets
Excess supply of fuel to engine
Complete or partial stoppage of fuel supply due to vaporization of fuel in the supply line
/
(A,4), (B,2), (C,3), (D,1)
(A,4), (B,2), (C,1), (D,3)
(A,2), (B,4), (C,1), (D,3)
(A,2), (B,4), (C,3), (D,1)
/
(A,4), (B,3), (C,1), (D,2)
(A,1), (B,4), (C,3), (D,2)
(A,3), (B,4), (C,1), (D,2)
(A,3), (B,4), (C,2), (D,1)
Description:

A series of tests is launched to offer the students of Mechanical Engineering to help them in checking their level of knowledge. These tests will contribute in building the aptitude of the students in various topics of Mechanical engineering. Majority of the questions are from IC engines and Automobile Engineering.

Discussion

gopal

Hi.... I am gopal and me second year dairek addmexen plz.... Con. Me my mo no is 985056454*

3794 days 12 hours 6 minutes ago

Sachin Tyagi

I want to learn more knowledge about automobile engine.

4133 days 11 hours 38 minutes ago

122 Followers

Your Facebook Friends on WizIQ

More Tests By Author

PHYSICS: D.C. MACHINE 08/08
20 Questions | 430 Attempts

PHYSICS: D.C. MACHINE 07/08
20 Questions | 340 Attempts

PHYSICS: D.C. MACHINE 06/08
20 Questions | 439 Attempts