CBSE Class 10 Question Paper 2025 Solution Automotive

Marking Scheme
Strictly Confidential
(For Internal and Restricted use only)
Secondary School Examination, 2025
SUBJECT NAME AUTOMOTIVE (Q.P. CODE 91)

General Instructions: -
1 You are aware that evaluation is the most important process in the actual and
correct assessment of the candidates. A small mistake in
evaluation may lead to serious problems which may affect the
future of the candidates, education system and teaching
profession. To avoid mistakes, it is requested that before starting
evaluation, you must read and understand the spot evaluation
guidelines carefully.
2 “Evaluation policy is a confidential policy as it is related to the
confidentiality of the examinations conducted, Evaluation
done and several other aspects. Its’ leakage to public in any
manner could lead to derailment of the examination system
and affect the life and future of millions of candidates.
Sharing this policy/document to anyone, publishing in any
magazine and printing in Newspaper/Website, etc. may invite
action under various rules of the Board and IPC.”
3 Evaluation is to be done as per instructions provided in the Marking Scheme. It
should not be done according to one’s own interpretation or any
other consideration. Marking Scheme should be strictly adhered
to and religiously followed. However, while evaluating, answers
which are based on latest information or knowledge and/or
are innovative, they may be assessed for their correctness
otherwise and due marks be awarded to them. In class-X,
while evaluating two competency-based questions, please try
to understand given answer and even if reply is not from
marking scheme but correct competency is enumerated by
the candidate, due marks should be awarded.
4 The Marking scheme carries only suggested value points for the answers.
These are in the nature of Guidelines only and do not constitute the complete
answer. The students can have their own expression and if the
expression is correct, the due marks should be awarded
accordingly.

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5 The Head-Examiner must go through the first five answer books evaluated by
each evaluator on the first day, to ensure that evaluation has been
carried out as per the instructions given in the Marking Scheme. If
there is any variation, the same should be zero after deliberation
and discussion. The remaining answer books meant for
evaluation shall be given only after ensuring that there is no
significant variation in the marking of individual evaluators.
6 Evaluators will mark( √ ) wherever answer is correct. For wrong answer CROSS
‘X’ be marked. Evaluators will not put right (✓)while evaluating
which gives an impression that answer is correct and no marks
are awarded. This is most common mistake which evaluators
are committing.
7 If a question has parts, please award marks on the right-hand side for each part.
Marks awarded for different parts of the question should then be
totaled up and written in the left-hand margin and encircled. This
may be followed strictly.
8 If a question does not have any parts, marks must be awarded in the left-hand
margin and encircled. This may also be followed strictly.
9 If a student has attempted an extra question, answer of the question deserving
more marks should be retained and the other answer scored out
with a note “Extra Question”.
10 No marks to be deducted for the cumulative effect of an error. It should be
penalized only once.
11 A full scale of marks __________(example 0 to 80/70/60/50/40/30 marks as
given in Question Paper) has to be used. Please do not hesitate
to award full marks if the answer deserves it.
12 Every examiner has to necessarily do evaluation work for full working hours i.e.,
8 hours every day and evaluate 20 answer books per day in main
subjects and 25 answer books per day in other subjects (Details
are given in Spot Guidelines).This is in view of the reduced
syllabus and number of questions in question paper.

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13 Ensure that you do not make the following common types of errors committed by
the Examiner in the past:-
● Leaving answer or part thereof unassessed in an answer book.
● Giving more marks for an answer than assigned to it.
● Wrong totaling of marks awarded on an answer.
● Wrong transfer of marks from the inside pages of the answer book to the
title page.
● Wrong question wise totaling on the title page.
● Wrong totaling of marks of the two columns on the title page.
● Wrong grand total.
● Marks in words and figures not tallying/not same.
● Wrong transfer of marks from the answer book to online award list.
● Answers marked as correct, but marks not awarded. (Ensure that the right
tick mark is correctly and clearly indicated. It should merely be a line. Same
is with the X for incorrect answer.)
● Half or a part of answer marked correct and the rest as wrong, but no marks
awarded.
14 While evaluating the answer books if the answer is found to be totally incorrect, it
should be marked as cross (X) and awarded zero (0)Marks.
15 Any unassessed portion, non-carrying over of marks to the title page, or totaling
error detected by the candidate shall damage the prestige of all
the personnel engaged in the evaluation work as also of the
Board. Hence, in order to uphold the prestige of all concerned, it
is again reiterated that the instructions be followed meticulously
and judiciously.
16 The Examiners should acquaint themselves with the guidelines given in the
“Guidelines for Spot Evaluation” before starting the actual
evaluation.
17 Every Examiner shall also ensure that all the answers are evaluated, marks
carried over to the title page, correctly totaled and written in
figures and words.
18 The candidates are entitled to obtain photocopy of the Answer Book on request
on payment of the prescribed processing fee. All
Examiners/Additional Head Examiners/Head Examiners are once
again reminded that they must ensure that evaluation is carried
out strictly as per value points for each answer as given in the
Marking Scheme.

91 3 P.T.O.

Set 91

MARKING SCHEME
AUTOMOTIVE

SECTION A

(Objective Type Questions )

1. Answer any 4 out of the given 6 questions on Employability Skills. 4 1 = 4

(i) (C) Parts of speech 1

(ii) (D) Positive 1

(iii) (A)Self-confidence 1

(iv) Window key 1

(v) (D) Entrepreneurship 1

(vi) (C) Environment 1

2. Answer any 5 out of the given 6 questions. 5 1 = 5

(i) (B) about 35% acid to 65% water 1

(ii) (C) Ignition coil 1

(iii) Technical

1

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(iv) (A) Road shocks 1

(v) (B) wheels and road 1

(vi) (A) Semi-automatic 1

3. Answer any 5 out of given 6 questions. 5 1 = 5
(i) Files 1
(ii) (D) Mallet 1
(iii) (C) Air compressor 1
(iv) (B) Two 1
(v) (A) Airbags 1
(vi) (B) safety 1

4. Answer any 5 out of given 6 questions. 5 1 = 5
(i) (D) one full spoon 1
(ii) Service 1
(iii) (B) Research & Development 1

(iv) Ourselves 1

(v) (C) Top 1

(vi) (B) Paper 1

5. Answer any 5 out of the given 6 questions. 5 1 = 5

(i) (D) company representative 1

(ii) (A) Professional 1

(iii) Feel Good Factor 1

(iv) (B) Process paper work 1

(v) (C) Carefully specified 1

(vi) (A) Federal lab 1

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SECTION B

(Subjective Type Questions)

Answer any 3 out of the given 5 questions on Employability Skills. Answer each
question in 20 – 30 words. 3 2 = 6

6. Language barriers : Language barrier may be defined as the obstacles that
comes between the communication of two or more individuals.

It is about not using word that other can understand will certainly stop message
from being conveyed. This not only applies to actual language but also expression
format used buzz and other jargon. 2

7. Yoga can be useful in stress management in following ways :

 It promotes physical relaxation and help to calm the body and mind.

 It encourage deep breathing and controlled relaxation response

 It teaches mindfulness and present moment awareness which create mental
clarity and emotional stability

 It reduce cortisol (the stress hormones ) and reduce the impact of chronic
diseases

 It also help in improving sleep. 2

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8. The recycle bin act as holding bay for deleted items such as files and

folders. When you delete a file or folder it is not deleted from your computer
permanently, and window 7 places the deleted item into the recycle bin

The main feature of recycle bin is that you can recover deleted items
if they deleted by mistake 2

9. Being an entrepreneur starts with a way of thinking. You must believe that
anything is possible and it shall be achieved. The entrepreneurs are not born, but
made

The talent may be learned, polished and developed they have a natural inclination
towards business and their success is predetermined by their genetics 2

10. Green economy is defined as economy whose main aim is to reduce the
harmful risks to the environment as well as ecological scarcities. Overall it should
be based on the principles of sustainable development.

It can also be promoted by basic general formula :

 Reuse

 Reduce

 Recycle 2

Answer any 4 out of the given 6 questions . Answer each question in 20 – 30 words
4 2 = 8

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11. Content of owner manual are :

 Vehicle description and location

 Technical specification

 Periodic maintenance schedule

 General maintenance (by owner/technician)

 Battery, Tyre warranty specification and procedure 2

12. Preventive measures to keep the suspension system trouble free :

 lubrication of ball joint regularly

 Inspection of ball joint regularly

 All linkage such as shocks and struts should be checked

 link arm and suspension arm to be checked

 Jumping road & bush should be checked for wear and tear

 Drive the vehicle carefully on bad and bumpy roads 2

13. Every vehicle has large number of parts. Many of them can be
handled with general tools but some of special part such as oil filter, flywheel
etc. need special tools for loosening & tightening with the use of special tools.
The life of parts increase and damage is reduced

Use of Torque Wrench :

 It is used to precisely apply specific torque to a fasteners such as nuts and
bolts

 It can also be used as socket wrench with the special mechanism 2

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14. Material and Tools required for changing coolant :

(i) Pan (container for collecting the drained out/used coolant)

(ii) Coolant

(iii) Specified spanners

(iv) Cotton Duster Cloth 2

15. Duties performed by an automobile sales person :

• Sell and deliver maximum number of the vehicle per month

• To explain the product’s specification and performance

• Approach and greet the customer on their visit

• Listen carefully to their needs to ensure customer satisfaction

• Maintain a well groomed and professional appearance 2

16. Today’s modern vehicles are equipped with high safety features such as
Airbag, ABS etc to ensure safety of driver, co-driver and passengers

For this purpose crash test is made mandatory by the government which involves :

• Testing and Crashing the car at certain speed

• A new model undergoes testing in 30 different crash conditions such as
impact at front side and more

• It is done at research and testing center under the supervision of engineers,
scientists and researchers 2

Answer any 3 questions out of the given 5 questions Answer each question in 50 –
80 words each . 3 4 = 12

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17. Different parts of automobile body : 4

(i)Body shell

(ii)Floor assembly

(iii)Doors

(iv)Windshield and back window

(v)Body inner trims

(vi)Seats

(vii)Hood

(viii)Deck lid

(ix)Bumper

Floor Assembly :

Generally, the floor of the body is assembled first and after that the pillars, rails and
panels are welded in order to form the complete body.

Hood :

It is made of a single piece hinged at the rear of to cover the engine compartment.
The hood is kept closed by locking latch

18. Various measuring tools required in an automobile repair shop : 4

(i)Steel Ruler

(ii)Caliper

(iii)Screw Gauge (micrometer)

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Caliper : It is an important measuring tool used to measure the distance between
the two opposing sides of the components. The tips of the caliper are adjusted to fit
across the points to be measured. Then the caliper is removed and the distance
between the tips is read with the help of measuring tool such as ruler. It is used in
almost every engineering field

19. Various steps involved in the preparation of car for changing of oil and oil
filter in its engine :

• Park your car on hard plain and clean surface with the engine off and hand
break on

• Unscrew the oil cap

• Locate the oil drain plug

• Place the container below the drain plug

• Drain out the old oil from the engine

• Locate the oil filter

• Remove the old oil filter

• Prepare the new oil filter

• Install the new oil filter

• Fill up the engine oil

• Check the oil level with the help of dipstick

• Clean the excess oil

• Properly dispose the old oil and oil filter. 4

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20. Important key points in customer service :

• know your product

• Positive body language and physical appearance

• Good communication skill

• Fulfill guest need

• Feel good factor for customer

Know your Products : He must know about various the various aspect (general &
technical) about his product so that he can truly understand about what the
customer is asking for and can full fill their needs. He also ensured not to leave his
customer with an unanswered question. 4

21. Now a days automotive industries has become the fastest growing industries.
Every automobile manufacturer must have to follow all kind of laws and regulations
made by the government in which transport and vehicle are concerned

• They have formed a Society of Automotive Engineers which is commonly
known as SAE in which there are 14000 + experts and 100 + countries. They
all handled 2600 globally recognized standard for motor vehicle transport.

• An automotive must meet more than 200 government safety and
environment regulation in the US alone. Title 40 of the code of federal
regulation which is the section addressing the environment is actually longer
than US tax code

• Substantial changes to the federal law on occupant crash protection (FMVSS
208) added 50 test to the automobile development cycle including new crash
test, new test dummies and new airbag requirements

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• The road to market can be long and very hard. An automobile must meet
exact specification over a long series of tests.

• If a model failed to perform as expected it may need to be re-engineered re-
designed and go back for re-testing. 4

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