AUTOMOBILE ENGINEERING MCQ SECTION 14

131. The example of a ‘variable venturi’ type carburetor is the

(A) Carter Carburetor

(B) Solex Carburetor

(C) S.U. Carburetor

(D) Zenith Carburetor

Answer: - S.U. Carburetor

132. The number of positive plates in a battery cell is

(A) One more than the negative plates

(B) One less than the negative plates

(C) Two more than the negative plates

(D) Two less than the negative plates

Answer: - One less than the negative plates

133. With the increase of battery temperature, the specific gravity of electrolyte

(A) Increase

(B) Decrease

(C) Stays the same

(D) Change the colour

Answer: - Decrease

134. In case of engines backfiring, the PCV valves

(A) Open maximum

(B) Closes

(C) Disintegrates

(D) Sticks in the center positions

Answer: - Closes

135. The three way catalytic converter, the first converter controls

(A) HC

(B) CO

(C) NO_x

(D) SO²

^{Answer: - NOx}

136. In frames, the impact load is taken by

(A) Banjo-frames

(B) Bumper

(C) Dumb iron

(D) Cross member in the middle of frame

Answer: - Bumper

137. Type of frame preferred for a rear engine automobile is

(A) Backbone frame

(B) Tubular frame

(C) CAD frame

(D) Integral frame

Answer: - Backbone frame

138. A thick oil film establishes between a journal and the bearing bush according to

(A) Hydrodynamic lubrication theory

(B) Boundary lubrication theory

(C) Elasto-hydrodynamic theory

(D) Hydro resistance flow theory

Answer: - Hydrodynamic lubrication theory

139. A high volatile petrol is desired for

(A) Easy storage

(B) Avoiding vapour-lock

(C) Easy starting

(D) Fuel economy

Answer: - Easy starting

140. A super premium grade petrol is prepared by blending large proportion of ________ gasoline.

(A) Polymer

(B) Alkylated

(C) Thermally cracked

(D) Catalytically

Answer: - Alkylated