RRB JE CMA CBT-2 | Free Mock Test 2026 | 152 MCQs

Question 1

Chief Election Commissioner of India who took charge in January 2018?

Accepted Answer

C) Om Prakash Rawat

Question 2

Which state has approved the proposal for the formation of peasants commission?

Accepted Answer

C) West Bengal

Question 3

Which of the following has awarded with the 'Sasakawa award-2019 by the UN office for Disaster Risk Reduction (UNDRR)?

Accepted Answer

B) Dr. Pramod Kumar Mishra

Question 4

Where was the WTO Ministerial meeting of developing countries held from 13 to 14 May 2019?

Accepted Answer

C) New Delhi

Question 5

Who is the present Chief Minister of Gujarat?

Accepted Answer

D) None of the above

Question 6

Which part of a plant is referred to as food factory and why?

Accepted Answer

A) Leaf; because it carries out photosynthesis

Question 7

Which of the following is not mechanical process of treatment of air pollution-

Accepted Answer

D) Cyclone divider

Question 8

Which of the following is not related with air pollution-

Accepted Answer

C) Eutrophication

Question 9

Which of the following is a green house gas

Accepted Answer

D) Methane

Question 10

Which of the following is a factor for global warming?

Accepted Answer

A) Gases emitted from vehicles

Question 11

The reason of Acid rain is due to increase in concentration in which of the following-

Accepted Answer

A) SO₂ and NO₂ / SO₂

Question 12

Dioxin is excreted by-

Accepted Answer

D) Burning of plastics

Question 13

The formation of ozone hole is-

Accepted Answer

C) Above Antarctica

Question 14

Which of the following team of scientist invented ozone hole above Antarctica-

Accepted Answer

D) British Team

Question 15

Computer follows a simple principle (GIGO) which is abbreviated as-

Accepted Answer

A) Garbage in Garbage out

Question 16

Which of the following is an input device?

Accepted Answer

B) Mouse

Question 17

RAM is used as a short memory because it :

Accepted Answer

A) is volatile

Question 18

Four types of channels used in data communication of LAN are twisted pair cable, coaxial cable, _____, and radio waves.

Accepted Answer

D) Fibre optics

Question 19

Which of the following is used for data transfer between documents or applications via copy and paste operations?

Accepted Answer

B) Clipboard

Question 20

What does an electronic spreadsheet consist of ?

Accepted Answer

D) All of the above

Question 21

Which of the following logic gates is a universal gate, i.e., its combinations can be used to construct the logic of any other logic gate?

Accepted Answer

C) NAND gate

Question 22

Which of the following is a browser?

Accepted Answer

A) Safari

Question 23

Google Chrome is a-

Accepted Answer

C) Web browser

Question 24

What is the angle between centripetal acceleration and tangential acceleration?

Accepted Answer

A) 90°

Question 25

A 5 kg mass at rest on a frictionless table is acted upon by a constant force of 12 N. The distance travelled by it in 2s is-

Accepted Answer

C) 4.8 m

Question 26

Fill in the blank with the most appropriate option :

Accepted Answer

C) 6.67 × 10⁻¹¹ Nm²/kg²

Question 27

When a body is wholly or partially immersed in a fluid, it experiences an upthrust equal to the weight of the fluid displaced. This is known as:

Accepted Answer

B) Archimedes principle

Question 28

A movable body of mass m₁ collides with a stationary body of mass m₂. The collision is elastic. There is complete transfer of kinetic energy if :

Accepted Answer

A) m₁ = m₂

Question 29

Which part of the human eye is used in transplants?

Accepted Answer

B) Cornea

Question 30

What does the symbol R in electricity stand for?

Accepted Answer

D) Resistance

Question 31

Reciprocal of magnetic permeability is:

Accepted Answer

C) Reluctivity

Question 32

Which of the following is not a fossil fuel?

Accepted Answer

D) Biodiesel

Question 33

The characteristic equation of Gases PV = nRT holds good for :

Accepted Answer

C) Ideal Gases

Question 34

Atomic mass of Sulphur is 32 u. The number of moles in 16 grams of Sulphur is :

Accepted Answer

A) 0.5 moles of Sulphur

Question 35

Atomic mass of Nitrogen is 14 and that of Hydrogen is 1. What will be the molecular mass of Ammonia ?

Accepted Answer

B) 17

Question 36

The number of valence electrons in an atom of Phosphorus is :

Accepted Answer

D) 5

Question 37

Which of the following metals is NOT obtained by reduction using carbon ?

Accepted Answer

B) Sodium

Question 38

Gypsum is a:

Accepted Answer

C) Chemically precipitated sedimentary rock

Question 39

Brass is an alloy of:

Accepted Answer

A) copper and zinc

Question 40

What is the common property between LiAlH4, Sodium amalgam and NaBH4?

Accepted Answer

C) They are reducing agents

Question 41

Alkali metals are assigned in which group in the Modern Periodic Table?

Accepted Answer

D) First group

Question 42

The breakdown of glucose to pyruvate takes place in the ___ during energy production.

Accepted Answer

C) cytoplasm

Question 43

In which modern Indian state are the areas of Konkan, Marathwada and Vidarbha located?

Accepted Answer

D) Maharashtra

Question 44

Which of the following is NOT a simple permanent tissue?

Accepted Answer

A) Xylem

Question 45

What is the molecular formula of Calcium Phosphate?

Accepted Answer

A) Ca₃(PO₄)₂

Question 46

Which gas is released when bleaching powder is added to water?

Accepted Answer

D) Chlorine

Question 47

Which of the following statements is INCORRECT?

Accepted Answer

D) The basic nature of Sodium Hydroxide (NaOH) is due to the presence of sodium ions

Question 48

Jana-Gana-Mana was adopted as National Anthem on:

Accepted Answer

A) January 24, 1950

Question 49

The Indus Valley people wore clothes made of:

Accepted Answer

A) Cotton

Question 50

In the measurement, the diameter was found 1.308 cm. The significant figure is:

Accepted Answer

B) 4

Question 51

Rainbow is formed due to:

Accepted Answer

C) Total internal reflection

Question 52

To increase resolving power of a compound microscope:

Accepted Answer

A) Blue light should be used

Question 53

The 'Dobson' unit is used in the measurement of:

Accepted Answer

C) Ozone layer thickness

Question 54

The refractive index of water is 4/3. What is the speed of light in water?

Accepted Answer

A) 2.25 × 10⁸ m/sec / 2.25 × 10⁸

Question 55

The heat required to increase the temperature from 15°C to 65°C of 420 gm of spirit having specific heat 0.6 calorie/gm°C is:

Accepted Answer

A) 12600 Calorie

Question 56

The dimension of electric potential is similar to which of the following?

Accepted Answer

A) Work / Charge

Question 57

Which instrument is used both as a measuring device and for predictive purposes?

Accepted Answer

A) Barometer

Question 58

The sky shows blue due to it is:

Accepted Answer

C) The scattering of violet and blue colour of light is maximum

Question 59

In a calorimeter, whose water equivalent is 20 gm/°C has 400 gm of water at 10°C in it. If 500 gm sphere of metal is heated to 100°C and dipped, the mixture temperature becomes 20°C. The specific heat of metal in cal/gm°C will be:

Accepted Answer

D) 0.105

Question 60

A thermometer shows freezing point of 30° and boiling point of water of 150°. Then the thermometer will give the reading of 70° temperature as:

Accepted Answer

B) 114°

Question 61

If molecular weight of a certain gas is M and Cp/Cv = γ, then specific heat of gas at constant pressure will be:

Accepted Answer

C) (γR)/[M(γ-1)]

Question 62

The standard level of sound for human is

Accepted Answer

B) 60 dB

Question 63

In a standing sound wave, the pressure variation is:

Accepted Answer

C) maximum at nodes and zero at antinodes

Question 64

Which of the activity is not found in sound and light-

Accepted Answer

C) Polarization