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AIIMS CRE Electrical JE/AE Mock Test- 1 - NEET MCQ


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30 Questions MCQ Test AIIMS CRE Group B & C Mock Test Series - AIIMS CRE Electrical JE/AE Mock Test- 1

AIIMS CRE Electrical JE/AE Mock Test- 1 for NEET 2025 is part of AIIMS CRE Group B & C Mock Test Series preparation. The AIIMS CRE Electrical JE/AE Mock Test- 1 questions and answers have been prepared according to the NEET exam syllabus.The AIIMS CRE Electrical JE/AE Mock Test- 1 MCQs are made for NEET 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for AIIMS CRE Electrical JE/AE Mock Test- 1 below.
Solutions of AIIMS CRE Electrical JE/AE Mock Test- 1 questions in English are available as part of our AIIMS CRE Group B & C Mock Test Series for NEET & AIIMS CRE Electrical JE/AE Mock Test- 1 solutions in Hindi for AIIMS CRE Group B & C Mock Test Series course. Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free. Attempt AIIMS CRE Electrical JE/AE Mock Test- 1 | 100 questions in 90 minutes | Mock test for NEET preparation | Free important questions MCQ to study AIIMS CRE Group B & C Mock Test Series for NEET Exam | Download free PDF with solutions
AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 1
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Direction: In each of the following questions, a series is given with one term missing. Choose the correct alternatives from the given ones that will complete the series.

Detailed Solution for AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 1
(5,9×4=36⇒536)

(6,10×6⇒660)

(4,5×4=420)

Hence the correct answer is option D.

AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 2
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Direction : In each of the following questions, a series is given with one term missing. Choose the correct alternatives from the given ones that will complete the series.

Detailed Solution for AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 2
8 × 3 +1 = 25

3 × 4 + 1= 13

4 × 5 + 1 = 21

5 × 6 + 1 = 31

6 × 7 + 1 = 43

7 × 8 + 1 = 57

Hence correct answer is option B.

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AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 3
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Two quadratic equations: 16x2 - Ax + 25 and Bx2 + Ax + 4 = 0 have real and equal roots, then what is the value of √B?

Detailed Solution for AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 3
16x2 - Ax + 25 has real and equal roots

(-A)2 = 4 * 16 * 25

A = 40

Bx2 + Ax + 4 = 0 has real and equal roots

(A)2 = 4 * B * 4

(40)2 = 4 * B * 4

B = 100

√B = √100

√B = 10

AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 4
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Neutrophils and lymphocytes originate form
Detailed Solution for AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 4

  • Neutrophils and lymphocytes orginate from the bone marrow.

  • B-lymphocytes, which originate in the bone marrow, produce antibodies to fight off infection. The antibody attaches to the microbe, tagging it as "foreign.” Infection-fighting cells called neutrophils can now recognize the microbe, engulf and digest it.

AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 5
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Which of the following best describes the role of the Central Industrial Security Force (CISF) in India?
Detailed Solution for AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 5

The CISF is a Central Armed Police Force that secures critical infrastructure, including airports and nuclear installations. Its establishment aimed to protect sensitive public sector undertakings, and it has since expanded its role to include securing various important facilities across the nation.

AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 6
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The size of the venturimeter is expressed as 200 x 100 mm2. It means tea the
Detailed Solution for AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 6

200×100 mm2 it shows that diameter of pipe is 200 mm. And that of throat is 100 mm.

AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 7
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In the figure, the value of R is
Detailed Solution for AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 7

From the figure given, we have

AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 8
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The measurement of surface temperature in exposed situations where atmospheric variation can interfere with temperature measurement gives rise to
Detailed Solution for AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 8

An interaction error occurs when two entities work correctly when running independently, but they interact in unexpected ways when they are run together.

AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 9
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The following is the apparent disadvantage of auto transformer as compared to two-winding transformer
Detailed Solution for AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 9


 

Drawback of auto transformer
(1) If the transformer ratio K1 is far from unity, then the Auto transformer would not be economical one.
(2) The short circuit current in Auto transformer is higher than the short circuit current in two winding transformer.
(3) The main disadvantage of autotransformer is the direct electrical connection between low tension and high tension side, so it might be possible that the insulation of Cu may fail due to which a large current flow in windings.

AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 10
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For the linear circuit shown in figure,

when , V = 20 V

when R = 0 , I = 4 A

when the current I is-
Detailed Solution for AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 10

AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 11
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The leakage resistance of a 50 km long cable is 1MΩ. For a 100 km long cable is will be
Detailed Solution for AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 11

Leakage resistance is inversely proportional the length then,

AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 12
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66 KV is suitable for transmission of power over____.
Detailed Solution for AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 12
Hence, the correct option is (B)
AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 13
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Which of the following is of high importance in case of induction heating-
Detailed Solution for AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 13
Induction heating is the process of heating an electrically conducting object (usually a metal) by electromagnetic induction, through heat generated in the object by eddy currents. An induction heater consists of an electromagnet, and an electronic oscillator that passes a high-frequency alternating current (AC) through the electromagnet. The rapidly alternating magnetic field penetrates the object, generating electric currents inside the conductor called eddy currents. The eddy currents flowing through the resistance of the material heat it by Joule heating. In ferromagnetic (and ferrimagnetic) materials like iron, heat may also be generated by magnetic hysteresis losses. The frequency of current used depends on the object size, material type, coupling (between the work coil and the object to be heated) and the penetration depth.

Hence, the correct option is (C)

AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 14
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The value of demand factor is-
Detailed Solution for AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 14
The word “demand” itself says the meaning of Demand Factor. The ratio of the maximum coincident demand of a system, or part of a system, to the total connected load of the system.

  • Demand Factor = Maximum demand / Total connected load

  • For example, an oversized motor 20 Kw drives a constant 15 Kw load whenever it is ON. The motor demand factor is then 15/20 =0.75= 75 %.

  • Demand Factor is expressed as a percentage (%) or in a ratio (less than 1).

  • Demand factor is always < =1.

Hence, the correct option is (A)

AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 15
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A circuit has inductance of 2 H. If the circuit current changes at the rate of 10 A/'sec, then self-induced emf is-
Detailed Solution for AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 15

= 2 X 10 = 20 V

AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 16
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The material generally used for armour of high voltage cable is-
Detailed Solution for AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 16
Typically, the armour is made of one or two layers of wires, round or flat in shape, made of steel with low to medium carbon content (for example ranging from less than 0.015% to up to 2%). Steel is generally used due to its low cost, availability of supply and good mechanical properties. Other materials used for the cable armour can be galvanized (e.g. zinc-coated) steel, copper, brass, bronze. Galvanized steel is preferably used when the armour wires are exposed to the environment without any polymeric sheath or yarn layer, to ensure better resistance to corrosion.

Hence, the correct option is (B)

AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 17
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The megger voltage for testing 250 V installation should be-
Detailed Solution for AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 17
Take a look at many of the latest insulation testers and multifunction installation testers (MFTs) and you’ll see that they offer a choice of DC insulation test voltages. Almost all offer testing at 250 V, 500 V, and 1,000 V but increasingly an option for testing at 100 V is also available.

Hence, the correct option is (B)

AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 18
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After the starting winding is disconnected from the circuit the motor continues to run only on the-
Detailed Solution for AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 18
A single-phase motor cannot create a rotating magnetic field. It will just standstill and oscillate. To see this disconnect the start winding and you will see the motor will not startup. If you twist the motor shaft with your fingers it will run in whichever direction you twist. To self-start a single-phase motor one must create a rotating magnetic field on the stator. Two windings are used and the difference in impedance creates a phase delay in the magnetic fields produced by each winding allowing the motor to start.

Hence, the correct option is (B)

AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 19
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If the induced emf in the stator of an 8 pole induction motor has a frequency of 50 Hz and that in the rotor is 1.5 Hz, at what speed is the motor running and what is the slip?
Detailed Solution for AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 19
Slon: f = 50 Hz and fr = 1.5 Hz,

Ns = 120f/p = 120 x 50/8 = 750 rpm

We have fr = sf

Hence s= fr/f = 1.5/50 = 0.03

Hence, the correct option is (A)

AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 20
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In a dynamometer wattmeter, the moving coil is the-
Detailed Solution for AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 20
The dynamometer is connected as a wattmeter. This is one of the advantages of this type of meter. If the coils are connected so that a value of current proportional to the load voltage flows in one, and a value of current proportional to the load current

Hence, the correct option is (B)

AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 21
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If the load on an over compounded D.C. generator is reduced, the terminal Voltage.
Detailed Solution for AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 21
Applied voltage is defined as the voltage that is delivered across the load. This voltage should be the same as terminal voltage; however, various circuit faults and losses may reduce the terminal voltage.

Hence, the correct option is (C)

AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 22
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Why is a single-phase induction motor more noisy than 2-phase or 3-phase induction motors?
Detailed Solution for AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 22
Single-phase induction motor receives pulsating power whereas it delivers constant mechanical power. The instantaneous input electric power is pulsating; becoming positive, negative and zero depending on the load.

Hence, the correct option is (B)

AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 23
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According to Faraday's law of electromagnetic induction an emf is induced in a conductor whenever it_____.
Detailed Solution for AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 23
Hence, the correct option is (C)
AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 24
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The slip rings employed in a 3-phase synchronous machine are insulated for_____.
Detailed Solution for AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 24
Hence, the correct option is (B)
AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 25
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A transformer that converts measurand into the form of pulse is called the_____transducers.
Detailed Solution for AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 25
Hence, the correct option is (C)
AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 26
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In a vapour compression system, which of the following units is adversely affected by the presence of moisture?
Detailed Solution for AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 26
Hence, the correct option is (B)
AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 27
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Halogen lamps have the advantages of _____
Detailed Solution for AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 27
Hence, the correct option is (D)
AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 28
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Class…………………operation has no collector current when no signal is applied.
Detailed Solution for AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 28

In class B operation, the transistor bias is so adjusted that zero signal collector current is zero i.e. no biasing circuit is needed at all. Obviously, in the absence of signal, no collector current will flow in class B operation.

AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 29
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Determine the voltage at point C shown below with respect to ground-
Detailed Solution for AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 29

AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 30
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A 3-phase 4pole induction motor works on 3-phase 50 Hz supply. If the slip of the motor is 4%. The actual speed will be
Detailed Solution for AIIMS CRE Electrical JE/AE Mock Test- 1 - Question 30

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