OTET Exam  >  OTET Tests  >  OSSSC TGT Science PCM Mock Test - 4 - OTET MCQ

OSSSC TGT Science PCM Mock Test - 4 - OTET MCQ


Test Description

30 Questions MCQ Test - OSSSC TGT Science PCM Mock Test - 4

OSSSC TGT Science PCM Mock Test - 4 for OTET 2024 is part of OTET preparation. The OSSSC TGT Science PCM Mock Test - 4 questions and answers have been prepared according to the OTET exam syllabus.The OSSSC TGT Science PCM Mock Test - 4 MCQs are made for OTET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for OSSSC TGT Science PCM Mock Test - 4 below.
Solutions of OSSSC TGT Science PCM Mock Test - 4 questions in English are available as part of our course for OTET & OSSSC TGT Science PCM Mock Test - 4 solutions in Hindi for OTET course. Download more important topics, notes, lectures and mock test series for OTET Exam by signing up for free. Attempt OSSSC TGT Science PCM Mock Test - 4 | 150 questions in 120 minutes | Mock test for OTET preparation | Free important questions MCQ to study for OTET Exam | Download free PDF with solutions
OSSSC TGT Science PCM Mock Test - 4 - Question 1

Motor development means _____.

Detailed Solution for OSSSC TGT Science PCM Mock Test - 4 - Question 1

Motor development is a physiological process in which motor activities are learned by children and taken into practice leads to permanent behaviour change. It is divided into two skills: gross motor development, that is, development of large muscle and fine motor development, that is, development of short muscle. This is how motor development controls body movements.
Hence, the correct answer is "Development of control over body movements".

OSSSC TGT Science PCM Mock Test - 4 - Question 2

This theory of development firmly believes that development is a biological process that occurs automatically in predictable, sequential stages over time:

Detailed Solution for OSSSC TGT Science PCM Mock Test - 4 - Question 2

Arnold Gesell gives the Maturational Theory. He explained that mature is a genetic factor, and it plays an important role in children's development; the influence of the environment is not more important than genes. Children take birth by genes; their habits are like their parents, their sitting posture, how they eat, how they walk, etc., all depends on their parents. He believes that development is a biological process that occurs automatically in sequential stages, which means genes play an important role in developing a child.
Hence, the correct answer is "Maturational Theory".

1 Crore+ students have signed up on EduRev. Have you? Download the App
OSSSC TGT Science PCM Mock Test - 4 - Question 3

IQ scores between 90 and 110 are labelled as:

Detailed Solution for OSSSC TGT Science PCM Mock Test - 4 - Question 3

IQ is a score obtained by conducting an Intelligence Test. Intelligence involves different mental activities and abilities which include logic, reasoning, planning, and problem-solving. So IQ between 90 to 110 is considered as normal. This proves that this is normal and people having IQ between 90 to 110 can understand everything, able to do planning, reasoning, etc.
Hence, the correct answer is "Normal".

OSSSC TGT Science PCM Mock Test - 4 - Question 4

Learning means to gain:

Detailed Solution for OSSSC TGT Science PCM Mock Test - 4 - Question 4

Learning is a process where we live, talk with others, learn new things which means we are interacting with others, and learning different skills like sitting, walking, eating, etc. We gain knowledge of what we are not aware of and also learn various skills that help us in the future.
Hence, the correct answer is "All of the above".

OSSSC TGT Science PCM Mock Test - 4 - Question 5

A straight conductor carrying current I is split into circular loop as shown in figure a , the magnetic induction at the center of the circular loop is

Detailed Solution for OSSSC TGT Science PCM Mock Test - 4 - Question 5

 

The magnetic field at the center O due to the upper side of the semicircular current loop is equal and opposite to that due to the lower side of the loop.

OSSSC TGT Science PCM Mock Test - 4 - Question 6

A battery is connected with a potentiometer wire. The internal resistance of the battery is negligible. If the length of the potentiometer wire of the same material and radius is doubled then

Detailed Solution for OSSSC TGT Science PCM Mock Test - 4 - Question 6

Potential gradient Is given by V/l. If V and l are constant, the potential gradient also remains constant. The change in the radius will cause a change in the current. This does not change the potential gradient.

OSSSC TGT Science PCM Mock Test - 4 - Question 7

Sensitivity of potentiometer can be increased by

Detailed Solution for OSSSC TGT Science PCM Mock Test - 4 - Question 7

Sensitivity of the potentiometer means the smallest potential difference it can measure. It can be increased by reducing the potential gradient. The same is possible by increasing the length of the potentiometer. Hence the correct option is option C.

OSSSC TGT Science PCM Mock Test - 4 - Question 8

Comparing X-rays and Gamma rays

Detailed Solution for OSSSC TGT Science PCM Mock Test - 4 - Question 8

Gamma-ray photons have the highest energy in the EMR spectrum and their waves have the shortest wavelength. Scientists measure the energy of photons in electron volts (eV). X-ray photons have energies in the range 100 eV to 100,000 eV (or 100 keV). Gamma-ray photons generally have energies greater than 100 keV.

OSSSC TGT Science PCM Mock Test - 4 - Question 9

A straight line joining the object point and image point is always perpendicular to the mirror

Detailed Solution for OSSSC TGT Science PCM Mock Test - 4 - Question 9

Any line joining the object point and the image point always passes through the centre of curvature of the mirror. This is because of the law, that any ray passing through the centre of curvature of the mirror will retrace its path back.
Thus, any ray passing through the centre of curvature will be perpendicular to the mirror irrespective of the type of the mirror used.

OSSSC TGT Science PCM Mock Test - 4 - Question 10

In Young’s double slit experiment, one slit is covered. The observed effect will be

Detailed Solution for OSSSC TGT Science PCM Mock Test - 4 - Question 10

Because Presence of two coherent sources of radiation is one of the PRIME CONDITIONS FOR INTERFERENCE.

OSSSC TGT Science PCM Mock Test - 4 - Question 11

Plane electromagnetic wave travels in vacuum along z-direction. If the frequency of the wave is 30 MHz, its wavelength is

Detailed Solution for OSSSC TGT Science PCM Mock Test - 4 - Question 11

The electromagnetic wave travels in vacuum along z-direction. Then, the electric field vector and magnetic field vector will be in the XY plane.
Frequency of the wave = 30 MHz
Converting into Hz, v = 30× 106 Hz.
speed of light, c = 3 × 108 m/s
Wavelength of the wave can be calculated using the following relation:
λ = c/v
⇒ λ = 3 × 108/30 × 106
⇒λ = 10 m

OSSSC TGT Science PCM Mock Test - 4 - Question 12

A concave mirror of focal length f1 is placed at a distance of d from a convex lens of focal length f2. A beam of light coming from infinity and falling on this convex lens - concave mirror combination returns to infinity. The distance d must equal

Detailed Solution for OSSSC TGT Science PCM Mock Test - 4 - Question 12


∴ d = 2f1 + f2 

OSSSC TGT Science PCM Mock Test - 4 - Question 13

Bending effect of light as it passes from one transparent material into other is known as

Detailed Solution for OSSSC TGT Science PCM Mock Test - 4 - Question 13

This 'bending of a ray of light' when it passes from one substance into another substance is called refraction. The bending of a ray of light also occurs when the ray comes out of glass or water and passes into air.

OSSSC TGT Science PCM Mock Test - 4 - Question 14

Which of the following salts when dissolved in water produce hard water?

Detailed Solution for OSSSC TGT Science PCM Mock Test - 4 - Question 14

When either calcium sulphate or magnesium bicarbonate or calcium chloride is dissolved in water, hard water is obtained. Hard water is due to presence of sulphates, chlorides or bicarbonates of magnesium and calcium in water. 

OSSSC TGT Science PCM Mock Test - 4 - Question 15
What makes Plaster of Paris a popular material in sculpting and art?
Detailed Solution for OSSSC TGT Science PCM Mock Test - 4 - Question 15
Plaster of Paris is a popular material in sculpting and art due to its quick drying time. Artists appreciate the fact that it can be molded into various shapes and textures and dries rapidly, making it a convenient choice for creating intricate designs. This characteristic allows artists to work efficiently and bring their creative visions to life in a timely manner.
OSSSC TGT Science PCM Mock Test - 4 - Question 16

Two miscible liquids A and B are present in solution. The boiling point of A is 600C and that of B is 900C. Which of the following method is used to separate these two liquids?

Detailed Solution for OSSSC TGT Science PCM Mock Test - 4 - Question 16

Distillation is the process of separating the components or substances from a liquid mixture by using selective boiling and condensation. Simple distillation is used when the boiling points of chemicals in a mixture having large differences (more than 25°C). Fractional distillation is used when the boiling points of chemicals in a mixture are close to each-other, usually within 77°F (25°C). Fractionating columns used to separate the mixtures.

OSSSC TGT Science PCM Mock Test - 4 - Question 17

Convert 300K into Celsius

Detailed Solution for OSSSC TGT Science PCM Mock Test - 4 - Question 17

The correct option is C.
Zero on the Celsius scale (0°C) is the equivalent to 273.15K. 1-degree rise in Celsius scale is equivalent to the 1-degree rise in the Kelvin scale.
 Conversion Formula for the temperature is:C=K−273
300-273= 27 C

OSSSC TGT Science PCM Mock Test - 4 - Question 18

Which of the following metal can we cut with the knife –

Detailed Solution for OSSSC TGT Science PCM Mock Test - 4 - Question 18

There is lot of empty space on the unit cell, hence metallic bond is weaker. Thus sodium and potassium appear soft and can with knife. 

OSSSC TGT Science PCM Mock Test - 4 - Question 19

What type of change takes place when a sodium hydroxide pellet is added to water?

Detailed Solution for OSSSC TGT Science PCM Mock Test - 4 - Question 19

Because sodium hydroxide is a type of chemical and when we add it to water than this will be a chemical activity.

OSSSC TGT Science PCM Mock Test - 4 - Question 20

CH2=CH2 + H2 → CH3-CH3 is an example of:

Detailed Solution for OSSSC TGT Science PCM Mock Test - 4 - Question 20

The reaction in which an element or molecule is added to unsaturated hydrocarbons is called addition reaction.

OSSSC TGT Science PCM Mock Test - 4 - Question 21

 Liquids are called fluids because:

Detailed Solution for OSSSC TGT Science PCM Mock Test - 4 - Question 21

Fluidity is the ability of matter of not having a definite shape. Liquids such as water occupy the shape of the container in which they are kept that means they don't have a fix shape so they are called fluids. Gases are also considered fluids. 

OSSSC TGT Science PCM Mock Test - 4 - Question 22

Three face cards of spade are removed from a well shuffled pack of 52 cards and a card is drawn from the remaining pack. The probability of getting a black face card is​

Detailed Solution for OSSSC TGT Science PCM Mock Test - 4 - Question 22

Three face cards from spades have been removed.
Total cards=52-3=49
Total No of black face cards=3+3(3 in each spades and clubs)
Remaining black face cards=6-3=3
Probability of getting black face card=  no. of favourable outcomes/ total no. of outcomes=3/49

OSSSC TGT Science PCM Mock Test - 4 - Question 23

If ∠OAB = 40° then ∠ACB is equal to:

Detailed Solution for OSSSC TGT Science PCM Mock Test - 4 - Question 23

In ΔQAB, OA = OB [both are the radius of a circle]
∠OAB = ∠OBA ⇒ ∠OBA = 40°
[angles opposite to equal sides are equal] Also, ∠AOB + ∠OBA + ∠BAO = 180°
[by angle sum property of a triangle]
∠AOB + 40° + 40° = 180°
⇒ ∠AOB = 180° – 80° = 100°
We know that, in a circle, the angle subtended by an arc at the centre is twice the angle subtended by it at the remaining part of the circle.
∠AOB = 2 ∠ACB ⇒ 100° =2 ∠ACB
∠ACB = 100°/2 = 50°

OSSSC TGT Science PCM Mock Test - 4 - Question 24

The line segment joining (2, – 3) and (5, 6) is divided by x-axis in the ratio:

Detailed Solution for OSSSC TGT Science PCM Mock Test - 4 - Question 24

Hence, the ratio is 1:2 and the division is internal.

OSSSC TGT Science PCM Mock Test - 4 - Question 25

The relation shown in the arrow diagram in set builder form is

Detailed Solution for OSSSC TGT Science PCM Mock Test - 4 - Question 25

Set P is square of the element of set Q.
{(x, y): x is the square of y, x ∈ P, y ∈ Q}

OSSSC TGT Science PCM Mock Test - 4 - Question 26

The HCF and LCM of two numbers is 9 and 459 respectively. If one of the number is 27, then the other number is

Detailed Solution for OSSSC TGT Science PCM Mock Test - 4 - Question 26

Using the result, HCF × LCM = Product of two natural numbers ⇒ the other number =  product of two no. = LCM *HCF
Let unknown no. = X
>> X * 27 = 9*459
X = 9*459/27
X = 153

So X= 

So option B is correct answer. 

OSSSC TGT Science PCM Mock Test - 4 - Question 27

Which of the following is a set?

Detailed Solution for OSSSC TGT Science PCM Mock Test - 4 - Question 27

(a) The collection of all months of a year is a well-defined collection of objects because one can definitely identify a month that belongs to this collection. Hence, this collection is a set.

(b) A collection of novels is not a well-defined collection because one cannot identify a book that belongs to this collection. Hence, this collection is not a set.

(c) A collection of top rich persons can not be defined. Hence, this collection is not a set.

(d) The collection of the ten most talented writers of India is not a well-defined collection because the criteria for determining a writer's talent may vary from person to person. Hence, this collection is not a set.

OSSSC TGT Science PCM Mock Test - 4 - Question 28

 is equal to

Detailed Solution for OSSSC TGT Science PCM Mock Test - 4 - Question 28

OSSSC TGT Science PCM Mock Test - 4 - Question 29

The equation y2 + 3 = 2(2x+y) represents a parabola with the vertex at

Detailed Solution for OSSSC TGT Science PCM Mock Test - 4 - Question 29

y2+3=2(2x+y) represents parabola.
y2+3=4x+2y
y2−2y+3=4x
y2−2y+1+3=4x+1
(y−1)2=4x−2
(y−1)2=4(x−1/2)
So, the vertex of parabola=(1/2,1) and axis is parallel to x axis.
a=1
Focus=(1/2+1,1)
=(3/2,1)

OSSSC TGT Science PCM Mock Test - 4 - Question 30

Detailed Solution for OSSSC TGT Science PCM Mock Test - 4 - Question 30

View more questions
Information about OSSSC TGT Science PCM Mock Test - 4 Page
In this test you can find the Exam questions for OSSSC TGT Science PCM Mock Test - 4 solved & explained in the simplest way possible. Besides giving Questions and answers for OSSSC TGT Science PCM Mock Test - 4, EduRev gives you an ample number of Online tests for practice

Top Courses for OTET

Download as PDF

Top Courses for OTET