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You Are On Multi Choice Question Bank SET 3186
159301. Trafficators are light signal used for:
(A): Indicating the direction in which turning (B): Light traffic (C): Reversing the car in traffic (D): Heavy Traffic
159302. in a ventilated disc brake :
(A): A duct directs air towards the caliper for cooling while the vehicle is moving (B): Caliper is covered with cooling fins (C): Disc contains many small holes for optimum cooling performance (D): Disc contains radial vanes between its rubbing surfaces for optimum cooling performance
159303. The term ply rating with reference to a tyre refers to the :
(A): Actual number of plies (B): Recommended inflation pressure (C): Rated strength (D): Aspect ratio
159304. In the recirculating ball type steering gear, the balls travel between the ball nut and the :
(A): Gear rack^ (B): Worm wheel (C): Steering wheel shaft (D): Worm shaft
159305. The included angle in steering geometry is the sum of the :
(A): Camber and caster (B): Caster and Steering axis inclination (C): Camber and Steering axis inclination (D): Camber and toe-in
159306. In vehicles with tilt steering, the steering column is pivoted in :
(A): Upper bracket (B): Lower bracket (C): Tilt bracket (D): Steering yoke joint
159307. The caster is called as positive when the top of the kingpin is inclined to the :
(A): Rear of the wheel (B): Front of the wheel (C): Left of the wheel (D): Right of the wheel
159308. The vehicle ride will be comfortable if:
(A): Unsprung weight is kept minimum (B): Sprung weight is kept minimum (C): Vehicle weight is kept minimum (D): All of the above
159309. Which of the following gases is used as a fuel in internal combustion engine?
(A): Liquefied petroleum gas (B): Blast furnace gas (C): Coke oven gas (D): All of the above
159310. A mixture of theoretical air and fuel for complete combustion of fuel is called :
(A): Rich mixture (B): Lean mixtureLean mixture (C): Air-Fuel mixture (D): Stoichiometric mixture
159311. Combustion in compression ignition engine is :
(A): Homogenous (B): LaminarLaminar (C): Heterogeneous (D): Turbulent
159312. The process of breaking up of liquid fuel into droplets or fine spray is known as :
(A): Vaporization (B): Atomization (C): Carburetion (D): Injection
159313. In loop scavenging top of the piston is:
(A): Flat (B): Contoured (C): Slanted ’ (D): Depressed
159314. The heat energy released by a fuel is measured by:
(A): Energy meter (B): Thermometer (C): Calorimeter (D): Anemometer
159315. The anti knock property of the fuel depends on its :
(A): Molecular structure (B): Self ignition temperature (C): Chemical composition (D): All of the above
159316. Which of the following is not an objective of super charging?
(A): To increase the compression ratio (B): To overcome power losses at high altitudes (C): To increase the power output (D): To reduce the weight to power ratio
159317. The Carnot cycle consist of:
(A): Two isothermal and two adiabatic process (B): Two isothermal and two constant volume process (C): Two isothermal and two constant pressure process (D): Two isothermal and two isenthalpic process
159318. If the air fuel mixture ignites before the spark takes place the condition known as :
(A): Detonation (B): Ignition (C): Pre ignition (D): Knocking
159319. The octane rating of commercially available petrol is :
(A): 85-95 (B): 95-100 (C): 100-110 (D): 110-125
159320. The power actually developedby the engine cylinder of an IC engino known as :
(A): Theoretical power (B): Actual power (C): Indicated power (D): None of the above
159321. The ratio of the work obtained by the crankshaft in a given time to the energy supplied during the same time is known as :
(A): Mechanical efficiency (B): Indicated thermal efficiency (C): Overall efficiency (D): Volumetric efficiency
159322. In order to eliminate knocking in compression ignition engines, there should be :
(A): Short delay period (B): Late auto ignition (C): Low compression ratio (D): High self ignition temperature for fuel
159323. The ratio of the brake power to the indicated power is called :
(A): Indicated thermal efficiency (B): Overall efficiency (C): Mechanical efficiency (D): Volumetric efficiency
159324. During the charging the specific gravity of the electrolyte of lead acid battery :
(A): Increases (B): Becomes zero (C): Decreases (D): Remains same
159325. The capacity of battery is expressed in terms of:
(A): Current rating (B): Voltage rating (C): Ampere-hour-rating (D): None of the above
159326. When the lead acid battery fully charged electrolyte color will be?
(A): Dull (B): Reddish (C): Bright (D): Milky
159327. The frequency of voltage developed in alternator depends upon :
(A): Number of poles and rotational speed (B): Rotational speed (C): Number of poles, rotational speed and type of winding (D): Number of poles
159328. The most commonly used cranking motor drive is :
(A): Barrel type (B): Bendix drive (C): Friction clutch drive (D): Over running clutch
159329. The vapor lock problem may be caused in :
(A): Pipes (B): Feed pump (C): Float chamber (D): All of the above
159330. The difference of level of tip of main nozzle and fuel level in float chamber of a simple carburetor is called:
(A): Nozzle lip (B): Throttle lip (C): Throttle dip (D): Nozzle dip
159331. Which of the following is not true for internal combustion engine as compare to external combustion engine?
(A): It has a lower ratio of weight to output (B): Higher overall efficiency (C): They are all self starting (D): Mechanical simplicity
159332. The thermal efficiency of a diesel cycle having fixed compression ratio with increase in fuel cut off ratio will be :
(A): Decreases (B): Increase (C): Independent (D): None of the above
159333. The air gap between the central electrode and ground (or side) electrode of a spark plug is around:
(A): 0.2 mm (B): 1.5 mm (C): 0.5 mm (D): 1 mm
159334. What is the temperature co-efficient value of aluminum at 20° Celsius ?
(A): 40.3x10^-4 (B): 40.3x1 O^-3 (C): 40.3x10^-2 (D): 40.3 x10^-5
159335. How to increase the current range of a meter ?
(A): A low resistance connected in series (B): A high resistance connected in series (C): A low resistance connected in parallel (D): A high resistance connected in parallel
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