Automobile Engineering – Set 02

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All questions answers in the last paragraph

Q1. In petrol engines, during suction stroke, _ is drawn in the cylinder

(A) Air and fuel
(B) Only fuel
(C) Only air
(D) None of these

Q2. The instrument used to check specific gravity of acid in a battery is

(A) Hydrometer
(B) Hygrometer
(C) Anemometer
(D) Multimeter

Q3. When the battery is half (50%) charged, the specific gravity of acid in a battery is usually

(A) 0.74
(B) 1.00
(C) 1.12
(D) 1.19

Q4. The cetane number of a Diesel fuel is a measure of

(A) Volatility
(B) Viscosity
(C) Ignition quality
(D) Delay period

Q5. 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)

Q6. Thinner is added to the paint in order to

(A) Make pigments and resin mix easily
(B) Make paint film hard
(C) Optimise its viscosity
(D) None of these

Q7. The component that connects the steering rack to the knuckles is

(A) Tie rod
(B) Sector gear
(C) Pivot
(D) Spline

Q8. The crankshaft of a typical inline four cylinder engine has __ balance weights.

(A) 12
(B) 4
(C) 16
(D) 8

Q9. The main merit of a multi cylinder type cylinder sleeve is

(A) Smaller engine dimensions
(B) Better cooling efficiency
(C) High rigidity
(D) None of these

Q10. The function of a first compression ring (top ring) is that it

(A) Increases the combustion temperature
(B) Creates swirl
(C) Maintains a seal and prevents the fuel leakage
(D) Maintains a seal and prevents escape of burned gases and loss of pressure in the combustion chamber

Q11. The condition that results in large quantities of HC emission is

(A) High temperature combustion
(B) Incomplete combustion
(C) Low temperature combustion
(D) High atmospheric temperature combustion

Q12. In comparison with a radial tyre, one advantage of a bias ply tyre is

(A) Longer life
(B) Lower rolling resistance
(C) Smoother ride at low speeds
(D) None of these

Q13. The braking control type traction control system (TCS) generally operates in the speed range of

(A) Less than 20 kmph
(B) Less than 40 kmph
(C) Less than 60 kmph
(D) More than 60 kmph

Q14. The engine oil viscosity is defined by _ ratings.

(A) Automatic transmission fluid (ATF)
(B) Society of automotive engineers (SAE)
(C) Gross vehicle weight (GVW)
(D) American petroleum institute (API)

Q15. The positive plates of a lead acid battery has

(A) Lead peroxide (PbO₂)
(B) Spongy lead (Pb)
(C) Lead sulphate (PbSO₄)
(D) Sulphuric acid (H₂SO₄)

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