The stroke of an engine is the
Volume of the cylinder
Length of the connecting rod
Internal diameter of the cylinder
Distance between T.D.C. and B.D.C.
Correct Answer :
D. Distance between T.D.C. and B.D.C.
Related Questions
The purpose of turning radius gauges is to measure the
Contact areas of the tyres
Free plays of the steering wheel
Turning radius of the left and right wheels
Difference in the toe angles of the left and right wheels
Highest useful compression ratio (HUCR) is the highest compression ratio at which the
Engine can run
Engine gives maximum output
Engine is most efficient
Fuel can be used in a test engine without knocking
The compression ratio for Diesel engines usually lies in the range of
6-10
10-1
15-25
25-40
The advantage of having a tandem master cylinder arrangement in automobiles is that it
Enhances safety by serving two independent lines in a divided line brake circuit
Enhances safety by activating the brakes using vacuum pressure in the event of brake fluid loss
Supplies equal fluid pressure to each line of a divided line brake circuit, thereby preventing the brakes from dragging on one side
Boosts the brake fluid pressure to reduce the force required to depress the brake pedal
Damper is also known as
Shock absorber
Torsion bar
Spring
Radius rod
Which one of the following statement correctly describes the construction of a bevel gear type differential?
The drive shafts are splined to the differential carrier.
The left side gear and the differential carrier rotate in constant unison.
The differential carrier houses differential pinion gears and side gears; each pinion gear meshes with a different side gear.
The differential carrier houses differential pinion gears and side gears
Instead of valves, the ports are used in case of
Four stroke I.C. engines
Two stroke I.C. engines
V6 engines
None of these
The main merit of a multi cylinder type cylinder sleeve is
Smaller engine dimensions
Better cooling efficiency
High rigidity
None of these
When the battery is half (50%) charged, the specific gravity of acid in a battery is usually
0.74
1.00
1.12
1.19
The petrol engines are also known as
Spark ignition (S.I.) engines
Compression ignition (C.I.) engines
Steam engines
None of these
If clearance volume of I.C. engines is increased, the compression ratio will
Increase
Decrease
Remain constant
Be doubled
The air resistance to a car at 20 kmph is R. The air resistance at 40 kmph will be
R
2 R
4R
4 R²
One effect of detonation is
Delay in ignition
Loss of power
Overheating of engine
Overcooling of engine
Two general types of tyres are
Tube type and tubeless
Solid and tubeless
Air and pneumatic
Split rim and drop centre
The rigid suspension is beneficial when
It is desired to reduce the unsprung mass
It is desired to have more flexibility in design
It is desired to improve tyre to ground contact characteristics
Large changes in load make it necessary to have a large suspension stroke
The materials used for cylinder block are
Cast iron and steel
Cast iron and aluminium alloy
Steel and aluminium alloy
Brass and steel
The camshaft of a four stroke Diesel engine running at 1000 rpm will run at
500 rpm
1000 rpm
2000 rpm
4000 rpm
The aluminium alloy is used in cylinder blocks because
It is lighter and has good heat dissipation characteristics
Material cost is low
It does not require any cylinder liners
The piston is also made of aluminium alloy
Which one of the following statements correctly describes the construction of a planetary gear type differential?
The six planetary pinions rotate in constant mesh with the internal gears.
One drive shaft is splined to the central gear and the other to the planetary gear.
Each planetary pinion gear meshes with both the central gear and the internal gear.
The internal gear is fixed to the planetary gear.
The mechanical efficiency (ηm) of an I.C. engine is equal to (where I.P. = Indicated power, B.P. = Brake power and F.P. = Frictional power)
I.P/B.P.
B.P/I.P.
B.P/F.P.
F.P/B.P.
When the top of the wheel is tilted outward, then it is called
Positive camber
Negative camber
Positive caster
Negative caster
The basic characteristics of a brake fluid is
A high boiling point
Low viscosity
Compatibility with rubber and metal parts
All of these
The material generally used for cylinder sleeves is
Aluminium
Ceramic
Cast iron
Fibre reinforced plastic
Incorrect steering axis inclination (S.A.I.) causes
Tendency to assume toe-out orientation
Generation of a braking effect at tight corners
Poor recovery of the steering wheel after making a turn
The vehicle to pull to the side of lesser inclination
The octane rating of petrol commercially available is
85-95
95-100
100-110
110-125
Which part of the automobile tyre is subjected to greatest flexing action?
Bead
Side wall
Shoulder
Tread
An oil filter bypass valve opens when the
Engine is cold
Engine overheats
Oil filter becomes clogged
Engine runs at high speed
The gear shift lever requires two separate motions to shift gears, and the first movement
Moves the synchronizer
Selects the synchronizer
Meshes the gears
Operates the clutch
Which of the following bulb in a car will have the least wattage?
Head light bulb
Stop light bulb
Parking light bulb
Ignition warning bulb
A petrol engine of a car develops 125 Nm torque at 2700 r.p.m. The car is driven in second gear having gear ratio of 1.75. The final drive ratio is 4.11. If the overall transmission efficiency is 90%, then the torque available at the driving wheels is
8.091 Nm
80.91 Nm
809.1 Nm
8091 Nm