Goa Board Class 12 Question Paper June 2018 Auto Servicing and Garage Management

*V371* 2018 VI 12 143010 0Seat No. : Time : 2 Hours Auto servicing and garage management Subject Code V 3 7 1 Total No. of Questions : 5 (Printed Pages : 2) Maximum Marks : 50 Instructions : i) Answer each question on a fresh page. ii) Write the number of each question and sub-questions clearly. iii) All questions are compulsory. iv) Figures to the right indicate full marks. 1. A) Answer the following questions : 1) How the warned out piston oil rings will affect the performance of an engine ? [1] 2) List out any four objectives of store keeper in automobile store. [2] 3) Write the procedure to check bent propeller shaft. [2] 4) Mention any four causes and remedies to overcome the trouble “High oil pressure”. [2] B) What procedure you will follow to do the registration of vehicle ? [3] 2. A) Answer the following questions : 1) Which liquid is used in the fuel tank rather then water as a safety measure to avoid explosion while repairing it ? [1] 2) How will you conduct vaccume test of an engine ? [2] 3) Write procedure to do the cumbering of leaf spring. [2] 4) Give any four causes and suggest remedies to overcome the trouble “Poor Acceleration and lack of power” due to faulty fuel system. [2] B) Write procedure to replace the warned out rack of “Rack and Pinion” type steering gearbox. [3] V-371 -1- P.T.O.

*V371* 3. A) Answer the following questions : 1) How chocked oil filter will affect the engine efficiency ? [1] 2) Write procedure to check the lateral run out of clutch plate. [2] 3) State any four causes and suggest suitable remedies for the trouble “No power through respective gear of transmission”. [2] 4) Why does the basic inventory control level is maintained in an automobile spare part shops ? [2] B) Mention any three causes and suggest remedies for the following troubles : [3] 1) Brake drag 2) Grabbing of brakes. 4. A) Answer the following questions : 1) Explain the term “Registering Authority” as per the Motor Vehicle Act. [1] 2) List out any four causes of “Abnormal tyre wear”. [2] 3) Explain how you will check the injector by doing leak off test. [2] 4) Write the procedure to check king pin inclination of bent axle beam. [2] B) How will you carry out the maintenance of cooling system ? (any six points) [3] 5. A) Answer the following questions : 1) What is the good working temperature of an engine ? [1] 2) How will you check and adjust the backlash of sun and planetary gears of differential unit ? [2] 3) Write procedure to do the lapping of engine valve seat. [2] 4) How the work based factors are responsible for the job satisfaction ? [2] B) State and explain the reason to maintain the valve clearance of an engine. [3] ___________ V-371 -2-