Goa Board Class 12 Question Paper Mar 2018 Auto Servicing _ Garage Management _New Pattern_

*V371N01* 2018 III 15 1000 Seat No. : Time : 2 Hours AUTO SERVICING AND GARAGE MANAGEMENT (New Pattern) Subject Code V 3 7 1 Total No. of Questions : 5 (Printed Pages : 2) Maximum Marks : 50 INSTRUCTIONS : 1) Answer each question on a fresh page. 2) Write the number of each question and sub questions clearly. 3) All questions are compulsory. 4) Figure to right indicate full marks. 1. A) Answer the following questions : 1) Which grade of oil is used in oil bath type air cleaner ? [1] 2) What precautions are to be followed while fitting the cylinder head gasket ? [2] 3) State any four precautions to be taken while removing tyres from vehicles. [2] 4) How will you prevent the sludge formation in engine lubrication system ? [2] B) State any six causes of “Engine overheating” due to faulty cooling system. [3] 2. A) Answer the following questions : 1) What will happen, if the oil filter gets chocked ? [1] 2) List out any four good working qualities of Automobile Workshop Manager. [2] 3) How will you check the propeller shaft by using dynamic balance method ? [2] 4) Write procedure to rectify the trouble “Brakes grabbing” in hydraulic brake system. [2] B) Write three probable causes and suggest suitable remedies for the following troubles in carburetor : [3] a) Difficulty in starting when the engine is cold. b) Difficulty in starting when the engine is hot. V-371 -1- P.T.O.

*V371N01* 3. A) Answer the following questions : 1) Write the locations where bleeder nipples are provided in hydraulic braking system. [1] 2) What is the purpose of “Job card” in an Automobile workshop ? [2] 3) How will you repair the cracks, which occur on the chassis frame ? [2] 4) Give any four possible causes when the gear slips out of mesh. [2] B) Write procedure to adjust the valve clearance of a car engine. [3] 4. A) Answer the following questions : 1) State any two causes which leads to turbocharger failure. [1] 2) How does the basic inventory control is worked out in Automobile industry ? [2] 3) How will you check the tooth contact between a crown and pinion by using red lead past ? [2] 4) How will you inspect the clutch plate of diaphragm type clutch ? [2] B) State any six possible causes for “Excessive play in steering system”. [3] 5. A) Answer the following questions : 1) How will you repair the air cells of radiator ? [1] 2) State any four traffic rules have to be obeyed while taking off the vehicle from rest. [2] 3) How will you check and adjust the centre-mid position of steering gearbox ? [2] 4) How inspector carry out the inspection of a vehicle to give fitness certificate ? [2] B) Give sequences to inspect the following engine components for their serviceability : [3] a) Connecting rod big end bearing clearance. b) Ovality of cylinder bore. _____________ V-371 -2-