MBOSE Class 10 Question Paper 2023 for Electronics

Total No. of Printed Pages—4
23/VC/EL

2023

ELECTRONICS

( Vocational Course )

Full Marks : 30
Time : 1 hour

The figures in the margin indicate full marks for the questions

1. Choose the correct answer : 1×8=8

(a) Never operate electrical equipment while you are
standing in/on
(i) table
(ii) ground
(iii) water

(b) Fleming’s right-hand rule is applicable for
(i) motor
(ii) generator
(iii) both motor and generator

(c) In which part of juicer/mixer is OLP button located?
(i) Top
(ii) Bottom

/20 [ P.T.O.

( 2 )

(d) _____ equipment and power sockets before removing
the plug from the power source.
(i) Switch off
(ii) Switch on

(e) The basic SI unit of magnetic field is
(i) tesla
(ii) ohm
(iii) volts

(f) _____ converts high-voltage electric energy to
microwave radiation.
(i) Waveguide
(ii) Magnetron
(iii) High-voltage diode

(g) Which of the following is not a type of juicer?
(i) Centrifugal juicer
(ii) Reamer
(iii) Microwave oven

(h) The first food deliberately cooked with Spencer’s
microwave oven was
(i) cake
(ii) popcorn
(iii) egg

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( 3 )

2. Answer the following questions in 1 word or in
1 sentence each (any four) : 1×4=4

(a) What is mixer/grinder?

(b) Who discovered high-power microwave beam?

(c) Write the formula of Lenz’s law.

(d) What is hazard?

(e) What is the function of turnable motor in
microwave?

(f) Define relay.

3. Answer the following questions in 3 or 4 sentences each
(any three) : 2×3=6

(a) Draw a circuit diagram for electromagnetic
induction.

(b) State Fleming’s left-hand rule.

(c) What are the causes when home fuse blows when a
power cord is plugged into the wall receptable?

(d) What are the solutions when mixer does not function
at all speeds?

(e) What do you understand by electric motor winding?

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( 4 )

4. Answer the following essay-type questions (any three) :
4×3=12

(a) What is an electric motor? Explain the working
principle of motor with suitable diagram.

(b) What is fuse? Describe the working principle of fuse
with necessary diagram.

(c) What are the seven common electrical hazards at
your workplace that you are totally unaware of ?

(d) State the types of motor winding. Explain lap
winding and wave winding with suitable diagram.

(e) Describe the following cleaning procedure of a
mixer/juicer :

(i) Cleaning of jar

(ii) Cleaning of base unit

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23/VC/EL/20 K23—550