Question 1

Which of the following is used in measurement of very high temperature?

Mercury thermometer
Platinum resistance thermometer
Thermo-electric pyrometer
None of these

Answer

Correct Option: C

Question 2

If a cell from canon bursts in the air, the total kinetic energy

increases
decreases
remains constant
may increase or decrease

Answer

Correct Option: A

Question 3

In a barometer, mercury is preferred over water because

mercury is a good conductor of heat
mercury is shining and therefore its level can be read easily
mercury is available in pure form
mercury has high density and low vapour pressure

Answer

Correct Option: D

Question 4

Let a girl be swinging on a swing while she is in a sitting position. If she stands up now, how will the period of swing be effected?

No change in time period
It will increase
It will decrease
It will become zero

Answer

Correct Option: C

Question 5

Animal charcoal is obtained by

destructive distillation of bones
burning the slaughtered animal carcasses
calcining the remains of human beings
burning the bones of large animals

Answer

Correct Option: A

Question 6

A dark-purple compound used as an antiseptic and as disinfectant is

potassium nitrate
sodium thiosulphate
potassium permanganate
calcium phosphate

Answer

Correct Option: C

Question 7

Metal in each metal complex possesses

primary valencies satisfied by anions only
secondary valencies satisfied by the donor molecules
coordination number
all of these

Answer

Correct Option: D

Question 8

Nitrogen can be obtained by heating

ammonium chloride & sodium nitrite
ammonium chloride & sodium nitrarte
ammonium suplhate & caustic soda solution
ammonium carbonate

Answer

Correct Option: A

Question 9

Which of the following Quantum numbers are required to describe the state of an electron?

Principal
Azimuthal
Magnetic
Spin

Answer

Correct Option: D

Question 10

A photographic plate uses

silver iodide
silver bromide
silver hydroxide
potassium bromide

Answer

Correct Option: B

Question 11

The reaction between fats and alkali is known as

Oxidation
Carbonisation
saponification
hydrogenation

Answer

Correct Option: C

Question 12

Oxygen is prepared on a large scale from

water
calcium carbonate
potassium permanganate
sodium peroxide

Answer

Correct Option: A

Question 13

The more volatile metal like Hg & Zn are purified by

calcinations
electrolytic refining
distillation
oxidative refining

Answer

Correct Option: C

Question 14

Temporary hardness of water is due to the presence of

magnesium sulphate
calcium chloride
sodium bicarbonate
calcium bicarbonate

Answer

Correct Option: D

Question 15

Iron obtained from Fe₂O₃ contains a lot of carbon, silicon & other impurities. These are removed by

electrolytic refining
distillation
oxidative refining
sublimation

Answer

Correct Option: C

Question 16

Which of the following is/are true for an oxygen molecule?

It has one sigma & one pi bond
It is a diatomic molecule
It is a diamagnetic molecule
All of the above

Answer

Correct Option: A

Question 17

Non-metals exist in all three states; solids, liquids and gases. Which of the following exists in a liquid state?

Bromine
Chlorine
Fluorine
Iodine

Answer

Correct Option: A

Question 18

Water is a compound because

it exists as solid, liquid or gas
it contains hydrogen & oxygen
it cannot be split up into simpler substances by chemicals means
it contains two different elements joined by chemical bond

Answer

Correct Option: D

Question 19

Lead pencil contains

lead
lead oxide
graphite
none of these

Answer

Correct Option: C

Question 20

Stainless steel is an alloy of

iron & nickel
iron, chromium & nickel
iron, chromium & zinc
iron & manganese

Answer

Correct Option: B

Question 21

Which of the following is not correctly matched?

Galena - Lead sulphide
Calomel - Mercurous chloride
Green vitriol - Copper sulphate
Plaster of Paris - Calcium sulphate

Answer

Correct Option: B

Question 22

The Van der Waal' s equation reduces itself to the ideal gas equation at

high pressure & low temperature
low pressure & low temperature
low pressure & high temperature
high pressure & high temperature

Answer

Correct Option: A

Question 23

After Diamond, the second hardest material is

graphite
carborandum
calcium carbide
none of these

Answer

Correct Option: A

Question 24

Materials for rain proof coats and tents owe their waterproof properties to

surface tension
viscosity
specific gravity
elasticity

Answer

Correct Option: A

Question 25

The approximate intensity level of sound in dB which can cause damage to ear drum is

120dB
160 dB
140 dB
130 dB

Answer

Correct Option: B

Description: Online Complete study material for Engineering Entrance, Kerala Engineering Entrance, Engineering Entrance Result, Bharati Vidyapeeth Engineering Entrance Exam, Gate Engineering Entrance, Kerala Engineering Entrance Examination
Number of Questions: 25
Created by: Saurabh Mittal
Tags: Engineering Entrance Kerala Engineering Entrance Engineering Entrance Result Bharati Vidyapeeth Engineering Entrance Exam Gate Engineering Entrance Kerala Engineering Entrance Examination Science Work, Energy and Power Logic Gates Logic Gates and Their Truth Tables P-N Junction PN Junction: Mechanism of Formation Physics of Semiconductors Semiconductor Electronics: Materials, Devices and Simple Circuits Application of Junction Diode as a Rectifier Full-wave and Half-wave Rectifiers

Engineering Entrance ( Science )

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