With the increase of battery temperature, the specific gravity of electrolyte
Increases
Decreases
Remains the same
None of these
Correct Answer :
B. Decreases
Related Questions
The engine oil viscosity is defined by _________ ratings.
Automatic transmission fluid (ATF)
Society of automotive engineers (SAE)
Gross vehicle weight (GVW)
American petroleum institute (API)
The main function of the brake fluid is
Lubrication
Power transmission
Cooling
None of these
In a four stroke engine for each crankshaft revolution, the camshaft revolves
One half turn
One turn
Two turns
Four turns
The crescent shaped cavity on the piston head top surface is called as
Piston oil hole
Snap ring
Valve recess
Valve clearance
The order in which effort applied to the steering wheel is transferred to the front wheel is
Steering wheel, steering gearbox, steering shaft, tie rod, steering knuckle, front wheels
Steering wheel, steering shaft, steering gearbox, tie rod, steering knuckle, front wheels
Steering wheel, steering shaft, steering gearbox, steering knuckle, tie rod, front wheels
Steering wheel, tie rod, steering gearbox, steering shaft, steering knuckle, front wheels
The seat belt tensioners are built in the
Front seats
Shoulder anchors
Seat belt retractors
Seat belt buckles
The temperature indicating instrument in vehicles indicates the temperature of
Engine piston
Engine cylinder
Lubricating oil
Jacket cooling water
The ignition coil is used to
Step up current
Step down current
Step up voltage
Step down voltage
The tilting of the front wheels away from the vertical, when viewed from the front of the car, is called
Camber
Caster
Toe in
Toe out
In a four cylinder inline engine, the number of firing strokes in one revolution of the crank is
1
2
3
4
The main function of a resonator is that it
Regulates the intake air flow rate
Reduces the intake air noise
Enhances intake efficiency
Regulates the intake air temperature
The parking brake generally acts on
Front wheels
Rear wheels
Front and rear wheels
Propeller shaft
An imbalance wheel during vehicle operation
Makes large noise when its heavy point hits the road surface
Deflects in the vehicle's longitudinal direction
Bounces vertically or deflects from side to side (as seen from front or rear)
Creates a standing wave
The problems caused by the wheel imbalance are
Hard steering and hard ride
Poor acceleration and hard steering
Steering wheel vibrations and uneven tyre wear
Poor acceleration and reduced fuel efficiency
The ignition in a spark ignition engine takes place when the piston is
Exactly at the T.D.C. position on its compression stroke
Approaching the T.D.C. position on its compression stroke
Leaving the T.D.C. position on its compression stroke
Approaching the T.D.C position on its exhaust stroke
The most commonly used supplementary restraint system (SRS) component is
Seat belt
Brake
Airbag
Steering
If the valve clearances are excessively large, the problem that can arise is
Overheating of the engine
Incomplete valve closure
Fouling of spark plug by gasoline
None of these
The advantage of a tubeless tyre over tube type tyre is
Slow air leakage
Better fuel efficiency
Less chances of running flat
All of these
The basic part of the engine, to which the other engine parts are attached or assembled is the
Cylinder head
Crankshaft
Cylinder block
Oil pan
Which part of the automobile tyre is subjected to greatest flexing action?
Bead
Side wall
Shoulder
Tread
The calorific value of petrol is about
36.5-38.5 MJ/kg
39.4-42.5 MJ/kg
42.7-43.5 MJ/kg
45.5-47 MJ/kg
The function of antilock brake system (ABS) is that is
Reduces the stopping distance
Minimises the brake fade
Maintains directional control during braking by preventing the wheels from locking
Prevents nose dives during braking and thereby postpones locking of the wheels
The specific gravity of acid in a fully charged battery is generally
1.00
1.28
1.82
2.81
An overinflated tyre will wear the tread most near the
Edges
Corners
Centre
None of these
The petrol engines are also known as
Spark ignition (S.I.) engines
Compression ignition (C.I.) engines
Steam engines
None of these
The negative terminal post on the top of a battery is
Smaller than the positive terminal post
Larger than the positive terminal post
Of the same size as the positive terminal post
None of these
The function of a first compression ring (top ring) is that it
Increases the combustion temperature
Creates swirl
Maintains a seal and prevents the fuel leakage
Maintains a seal and prevents escape of burned gases and loss of pressure in the combustion chamber
In a square type engine
Geometrical shape is square
Diameter and length of piston are same
Two cylinders are placed horizontal and two vertical
Stroke length and cylinder bore are same
The fuel that detonates easily, is
N-heptane
Iso-octane
Benzene
Alcohol
The composition of the electrolyte in a fully charged battery is that
The electrolyte is pure distilled water
The electrolyte is pure sulphuric acid
The electrolyte is a mixture of 64% distilled water and 36% sulphuric acid by weight
The electrolyte is a mixture of 90% distilled water and 10% sulphuric acid by weight