If the air-fuel mixture in a spark ignition engine is too rich, then air-fuel ratio is about

The function of anti-lock brake system (ABS) is that is

A. Reduces the stopping distance

B. Minimizes the brake fade

C. Maintains directional control during braking by preventing the wheels from locking

D. Prevents nose dives during braking and thereby postpones locking of the wheels

The basic characteristics of a brake fluid is

A. A high boiling point

B. Low viscosity

C. Compatibility with rubber and metal parts

D. All of these

Wheel base of a vehicle is the

A. Distance between the centres of the front and rear wheels

B. Distance between the centres of the front tyres

C. Distance between the centres of the rear tyres

D. Extreme length of the vehicle

The negative plates of a lead acid battery has

A. Lead peroxide (PbO₂)

B. Spongy lead (Pb)

C. Lead sulphate (PbSO₄)

D. Sulphuric acid (H₂SO₄)