Karnataka 2nd PUC Question Paper 2026 Answer Key Automobile

2026 II PUC EXAM – 01 KSEAB 63 AUTOMOBILE
KARNATAKA SCHOOL EXAMINATION AND ASSESMENT BOARD
2026 II PUC EXAM-1
SUBJECT: 63 AUTOMOBILES MODEL ANSWER MAX.MARKS: 60
PART-A
Q. NO ANSWERS MARKS
I. CHOOSE THE CORRECT ANSWER 10x1=10
1) b) Right aligned 1
2) d) 15 1
3) b) Technician 1
4) c) Crankcase 1
5) b) Steel 1
6) b) Small 1
7) c) 20,000 1
8) a) Transmission and Engine 1
9) d) Fuse box 1
10) b) Negative 1
PART-B
II. ANSWER THE FOLLOWING QUESTIONS (ANSWER ANY 10) 10x2=20

11) 1. Innovate 2. Risk taking 3. self-motivated (Any two) 1 2
1
12) Worksheet Work book
1. A single sheet containing rows and column. 1. Spread sheet that has one or more sheet. 1
2. A collection of worksheets used to enter and 2. Its is used only in excel sheets 1 2
calculate data.
13) The service manual helps to teach the technicians to work on the vehicle systematically to
solve the problems as well as to provide service to maintain originality. 2
14)

Fig -Valve diagram-2 marks
15) 1. Crank angle sensor 1
2. Cam sensors 1 2
3. AMF sensor (Any two) Page | 1
16) Turbocharger is a forced induction device used to allow more power to be produced by an 2
engine of a given size.

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2026 II PUC EXAM – 01 KSEAB 63 AUTOMOBILE
17) 1. Automated manual transmission (AMT) 1
2. Continuously variable transmission (CVT) 1 2
18) 1. Transmission system in a vehicle helps to transmit mechanical power from engine to the 1
wheel or final drive. 1 2
2. It helps to maintain the speed constant and increasing the speed of the vehicle.
19) 1. Worm and nuts 2. Rack and pinion 3. Worm and sector (Any two) 1
1 2
20) Multimeter
1. Use to measure current, resistance and voltage. 1
2. Use to check the continuity of any electric/electronic circuit. 1 2

21)

2
Fuse
22) The harness consists of bunches of cables leading to the various components to be connected.
Each bunch is bound together with a PVC tape, leaving sufficient lengths of individual cables 2
protecting at each end for making the necessary electrical connections easily.
23)

2

Diagram-2 marks
PART-C

III. ANSWER THE FOLLOWING (ANSWER ANY SIX) 6x3=18

24) 1. Reducing plastic 2. Reducing non-biodegrable materials 1
3. Recycling the waste materials 4. Proper waste separation (Any three) 1 3
1
25) 1. Motivation 2. Self confidence 1
1 3
3. Hard working 4. Decision making ability (Any three)
1
26) • Index and Page number 1
• Expanded view of assembly and Disassembly sequence 1
• Tolerances, gazes, sizes of components 1
• Serviceability and Life span
3
• Decision for Repair or Replacement
• Assembly procedure and Working test procedure (Any three)
Page | 2

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2026 II PUC EXAM – 01 KSEAB 63 AUTOMOBILE
27) • No pickup
• Hard starting 1
• Valve sticks 1 3
• Engine overheats (Any three) 1
28) The cooling system is important to the engine because the engine reaches high temperatures
during the power stroke. Excess heat can damage the engine and its components, so a cooling 3
system is needed to remove the excess heat from the engine and maintain the engine at an
optimum temperature.
1. Park the vehicle and prepare the vehicle. 1
29) 2. Remove the clutch linkage, propeller shaft and clutch housing. 13
3. Remove flywheel and remove clutch assembly. 1
1. The drive shaft is a crucial drivetrain component that transmits torque from the transmission 2
30) or differential to the wheels. 1 3
2. It acts as a mechanical link designed to withstand high torque, vibrations, and shear stress.
31) 1. Clean and lubricate the each leaf spring. 1
2. Tighten all bolts, nuts and U-bolts. 1
3. Avoid overloading vehicle. 1 3

32)

3

Fig-Leaf spring
33) 1. The battery is called the heart of an auto electrical system. 1
2. It operates various systems such as the starting system and ignition system. 1
3. It is the main source of electrical power in a vehicle and supplies electricity to the whole 1 3
vehicle.
4. It stores electrical energy and supplies it even when the vehicle engine is off.
(Any three)
PART-D
IV. ANSWER THE FOLLOWING (ANSWER ANY 2) 2x6=12
34) 1. Park the vehicle on ground level and prepare the vehicle. 1
2. Remove the engine componnets like engine head and accessries like belt, alternator etc. 1
3. Remove pistons from respective cylinder and mark it. 1
4. Place the piston in the respective cylinder and measure the piston clearnce using feeler 1
gauge. 1 6
5. Use micrometer to measure the thickness of feeler gauge and tabulate the readings. 1
6. Tabulate the feeler gauge reading and compare with original reading (using service Page | 3
manual).
(Any six )

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2026 II PUC EXAM – 01 KSEAB 63 AUTOMOBILE
35) Rack and pinion Steering system:

6

Diagram-5, Parts-1
36) 1. Battery acid is very corrosive. Do not allow it to come in contact 1
2. When making connections to a battery, be careful. 1
3. When disconnecting battery cables, always disconnect the negative (ground) cable first. 1
4. When connecting battery cables, always connect the negative cable last.
5. Avoid any arcing or open flames near battery. 1 6
6. Follow manufacturer’s instructions when charging s battery.
7. Do not add additional electrolyte to the battery if it is low. Add only distilled water. 1
8. Do not wear any jewelry or watches while servicing the battery. 1
9. Never lay tools across the battery
10. Wear safety glasses or face shield when servicing the battery
(Any six)

37)

6
Page | 4
Diagram-5mark Parts-1mark

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