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Conversion of heat into electrical energy can be achieved by using a -

General Science Class-7th Class 8th Class 9th

Q. 5 of Quiz-588 (Que-ID : 567)

Conversion of heat into electrical energy can be achieved by using a -

  • ammeter
  • hydromere
  • voltmeter
  • thermocouple

Ans → (d)thermocouple

Explanation → A thermocouple is an electrical device consisting of two dissimilar electrical conductors forming an electrical junction. A a thermocouple produces a temperature-dependent voltage as a result of the the thermoelectric effect and this voltage can be interpreted to measure temperature

This question is taken from this post → General Science Quiz | Practice test for SSC, DSSSB, UPSSC, UKSSC, railway, and RRB Exams - attemp/practice


More MCQs in - General Science Quiz | Practice test for SSC, DSSSB, UPSSC, UKSSC, railway, and RRB Exams

Directions : (Q.1 - Q.15 Physics part)

Q. 1 of Quiz-588 (Que-ID : 558)

Galvanized iron is coated with a thin coating of-

  • copper
  • zinc
  • aluminium
  • white lead

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Q. 3 of Quiz-588 (Que-ID : 563)

 Which of the following is the most viscous medium?

  • Coaltar
  • Water
  • Alcohol
  • Air

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Q. 4 of Quiz-588 (Que-ID : 564)

A pond of clear water appears less deep than it really is. This is due to-

  • Reflection
  • refraction
  • The transparency of water
  • Dispersion

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Q. 5 of Quiz-588 (Que-ID : 567)

Conversion of heat into electrical energy can be achieved by using a -

  • ammeter
  • hydromere
  • voltmeter
  • thermocouple

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Q. 6 of Quiz-588 (Que-ID : 568)

What is the SI unit of pressure ?

  • Pascal
  • Dyne
  • Newton
  • Jule

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Q. 7 of Quiz-588 (Que-ID : 578)

What is the full form of RADAR ?

  • Radio Detecting and Ranging
  • Radio Detect and Rangs
  • Radio Device and Ranging
  • Region Device and Ranging

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Q. 8 of Quiz-588 (Que-ID : 579)

Which of the following is the fastest communication channel ?

  • Radio wave
  • All are operating at nearly the same propagation speed
  • Optical fiber
  • Microwave

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Q. 9 of Quiz-588 (Que-ID : 580)

Light from the sun reaches us in nearly

  • 5 min
  • 4.30 hrs
  • 5.30 hrs
  • 8 min

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Q. 10 of Quiz-588 (Que-ID : 581)

Which Colour has the Longest Wavelength

  • Violet
  • Yellow
  • White
  • Red

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Q. 11 of Quiz-588 (Que-ID : 582)

The capacity of communication channel is measured in

  • Band rate
  • Band width
  • Data flow
  • Bit capacity

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Q. 12 of Quiz-588 (Que-ID : 583)

Which of the following has the highest frequency ?

  • x-rays
  • cosmic rays
  • microwaves
  • radio waves

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Q. 13 of Quiz-588 (Que-ID : 584)

In a freezer ice cube will be formed more quickly in trays made of

  • rubber
  • plastic
  • aluminium
  • wood

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Q. 14 of Quiz-588 (Que-ID : 585)

Atmospheric pressure exerted on earth due to

  • gravitational pull
  • rotation of earth
  • revolution of earth
  • uneven heating of earth

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Q. 15 of Quiz-588 (Que-ID : 586)

Which of the following is vector quantity ?

  • momentum
  • pressure
  • Energy
  • work

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Directions : (Q.16 - Q.30 Chemistry part)

Q. 16 of Quiz-588 (Que-ID : 587)

Neutrons were discovered by 

  • James Chadwick
  • Ernest Rutherford
  • J. J. Thomson
  • John Dalton

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Q. 17 of Quiz-588 (Que-ID : 588)

Atomic mass of an element equal to the sum of number of 

  • electrons and protons only
  • protons and neutrons only
  • electrons and neutrons only
  • electrons, protons and neutrons

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Q. 18 of Quiz-588 (Que-ID : 589)

Which one of the following is the largest composition in biogas ?

  • Carbon dioxide
  • Methane
  • Hydrogen
  • Hydrogen sulphide

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Q. 19 of Quiz-588 (Que-ID : 590)

The number of maximum electron in N shell is -

  • 2
  • 8
  • 18
  • 32

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Q. 20 of Quiz-588 (Que-ID : 591)

Vinegar is also known as -

  • ethanoic acid
  • nitric acid
  • sulphuric acid
  • tartaric acid

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Q. 21 of Quiz-588 (Que-ID : 592)

Which of the following burns by producing a yellow, luminous flame ?

  • coal
  • LPG
  • Wax
  • charcoal

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Q. 22 of Quiz-588 (Que-ID : 593)

The modern periodic table was prepared by -

  • Dobereiner
  • Newlands
  • Bohr
  • Mendeleev

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Q. 23 of Quiz-588 (Que-ID : 594)

Plaster of Paris is made up of -

  • Marble
  • Cement
  • Gypsum
  • Limestone

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Q. 24 of Quiz-588 (Que-ID : 595)

How much amount of urea will be required for supplying 1 kg of nitrogen ?

  • 2.0 kg
  • 2.2 kg
  • 2.5 kg
  • 2.7 kg

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Q. 25 of Quiz-588 (Que-ID : 596)

Oxygen is absent in - 

  • Kerosene
  • Glass
  • Soil
  • Cement

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Q. 26 of Quiz-588 (Que-ID : 597)

The pH value of water is

  • 4
  • 7
  • 12
  • 18

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Q. 27 of Quiz-588 (Que-ID : 598)

Which of the following is also known as laughing gas ?

  • Nitric oxide
  • Nitrous oxide
  • Nitrogen pentoxide
  • Nitrogen

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Q. 28 of Quiz-588 (Que-ID : 599)

Who is regarded as the father of modern chemistry ?

  • Rutherford
  • Einstein
  • Lavoisier
  • C. V. Raman

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Q. 29 of Quiz-588 (Que-ID : 600)

The cooking gas LPG mainly consist of

  • Ethene
  • Propene
  • Propane and Butane
  • Ethyne

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Q. 30 of Quiz-588 (Que-ID : 601)

What is the dominant chemical present in detergent powder ?

  • Hydrochloric acid
  • Sodium carbonate
  • Calcium carbonate
  • Sodium alkyl sulphate

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Directions : (Q. 31 - Q. 45 Biology Part)

Q. 31 of Quiz-588 (Que-ID : 602)

which one of the following plant tissues has dead cells ?

  • Epidermis
  • Parenchyma
  • Collenchyma
  • Sclerenchyma

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Q. 32 of Quiz-588 (Que-ID : 603)

Lights enters the eye through a thin membrane called 

  • retina
  • cornea
  • pupil
  • iris

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Q. 33 of Quiz-588 (Que-ID : 604)

Which of the following is not a Reptile ?

  • Green-turtle
  • Crocodile
  • Salamandra
  • Garden Lizard

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Q. 34 of Quiz-588 (Que-ID : 605)

which of the following statements is not a micronutrient in plants ?

  • Iron
  • Manganese
  • Copper
  • Magnesium

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Q. 35 of Quiz-588 (Que-ID : 606)

Red colour of tomato is caused due to the presence of 

  • Vitamin C
  • Lycopene
  • Chromoplasts
  • Leucoplasts

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Q. 36 of Quiz-588 (Que-ID : 607)

Which acid is produced in human stomach for digestion purpose ?

  • Sulphuric Acid
  • Hydrochloric Acid
  • Acetic Acid
  • Nitric Acid

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Q. 37 of Quiz-588 (Que-ID : 608)

Chromosome number in any species 

  • increase by age
  • decrease by age
  • is constant
  • increase with the weight

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Q. 38 of Quiz-588 (Que-ID : 609)

In human body percentage of which element is highest?

  • Hydrogen
  • Nitrogen
  • Carbon
  • Oxygen

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Q. 40 of Quiz-588 (Que-ID : 611)

Tulsi plant has medicinal values due to presence of the following 

  • Inorganic acid
  • Organic acid
  • Phenols and Flavonoids
  • None of the above

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Q. 41 of Quiz-588 (Que-ID : 612)

The exposed skin of our body starts cracking in winter season due to

  • rainy season,
  • high humidity
  • summer season
  • low humidity

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Q. 42 of Quiz-588 (Que-ID : 613)

AIDS is caused by 

  • Helminth
  • Bacteria
  • Fungus
  • Virus

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Q. 43 of Quiz-588 (Que-ID : 614)

Which nutrient provides the maximum energy on breakdown?

  • Fibres
  • Proteins
  • Fats
  • Carbohydrates

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Q. 44 of Quiz-588 (Que-ID : 615)

Which organ in the human body helps to maintain balance ?

  • Heart
  • Liver
  • Ear
  • Brain

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Q. 45 of Quiz-588 (Que-ID : 616)

Hemoglobin is the protein inside red blood cells that carries 

  • Oxygen
  • Carbon dioxide
  • Nitrogen
  • Ozone

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More MCQs In - General Science Class-7th Class 8th Class 9th

Q. 1 of Quiz- (Que-ID : 3094)

In plants, a common symptom caused by deficiency of P, K, Ca and Mg is the

  • bending of leaf tip
  • formation of anthocyanins
  • poor development of vasculature
  • appearance of dead necrotic tissue

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Q. 43 of Quiz- (Que-ID : 614)

Which nutrient provides the maximum energy on breakdown?

  • Fibres
  • Proteins
  • Fats
  • Carbohydrates

Discuss View Answer

Q. 5 of Quiz- (Que-ID : 3098)

The formation of first stable product of nitrogen fixation is catalysed by enzyme

  • dehydrogenase
  • nitrogenase
  • isomerase
  • none of these

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Q. 4 of Quiz- (Que-ID : 1713)

Which is collip's hormone?

  • Thyroxine
  • Parathormone
  • Insulin
  • Esterogen

Discuss View Answer

Q. 13 of Quiz- (Que-ID : 3481)

Root hair absent in

  • Hydrophyte
  • Halophyte
  • Mesophyte
  • Heliophyte

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Q. 9 of Quiz- (Que-ID : 3252)

Which one of the following groups of animals is correctly matched with its one characteristic feature without even a single exception?

  • Mammalia : give birth to young ones
  • Reptilia : possess 3-chambered heart with one incompletely divided ventricle
  • Chordata : possess a mouth provided with an upper and a lower jaw
  • Chondrichthyes : possess cartilaginous endoskeleton

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Q. 15 of Quiz- (Que-ID : 2908)

In human adult females oxytocin

  • stimulates pituitary to secrete vasopressin
  • causes strong uterine contractions during parturition
  • is secreted by anterior pituitary
  • stimulates growth of mammary glands

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Q. 7 of Quiz- (Que-ID : 957)

Which of the following is known as the morning star?

  • Saturn
  • Venus
  • Jupiter
  • Mars

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Q. 2 of Quiz- (Que-ID : 3020)

Intercalary meristems are of

  • Permanent nature
  • Temporary nature
  • Some are permanent some temporary
  • None of these

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Q. 22 of Quiz- (Que-ID : 3415)

Who discovered Restricted endonucleas enzymes?

  • Smith and Nathane
  • Baiger
  • Waxman
  • Fleming

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Q. 3 of Quiz- (Que-ID : 1580)

Enzymatic hydrolysis of major nutrients in GIT to yield their simpler components is .....

  • Fermentation
  • Deglutition
  • Glycolysis
  • Digestion

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Q. 15 of Quiz- (Que-ID : 2984)

Which loop of hence is permeable to water

  • Descending loop
  • Ascending loop
  • Both the loops
  • None of the above

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Q. 34 of Quiz- (Que-ID : 605)

which of the following statements is not a micronutrient in plants ?

  • Iron
  • Manganese
  • Copper
  • Magnesium

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Q. 19 of Quiz- (Que-ID : 3537)

Act formulated in 1996 was

  • Insecticide Act
  • Air (Prevention and Control of Pollution) Act
  • Water (Prevention and control of Pollution) Act
  • Environment protection Act

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Q. 15 of Quiz- (Que-ID : 3083)

Which one of the following statement is true for ATP?

  • ATP is prosthetic part of an enzyme
  • ATP is an enzyme
  • ATP is organic ions of enzyme
  • ATP is a Co-enzyme

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Directions : (प्रश्न 16 से 20) प्रत्येक प्रश्न में दिए गए वाक्य को व्यक्त करने के लिए  उपयुक्त लोकोक्ति का चयन कीजिए।

Q. 19 of Quiz- (Que-ID : 1009)

चाहने वाले कि इच्छा ही सर्वोपरि होती है | इस वाक्य के लिए उपयुक्त लोकोक्ति है-

  • अपना हाथ जगन्नाथ
  • पिया चाहे सो सुहागिन
  • मीटौ सोई जो जाहि भावै
  • बिंध गया सो मोती

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Q. 14 of Quiz- (Que-ID : 86)

The Enzyme found in the salive is :

  • Ptyalin
  • Pepsin
  • Maltose
  • Lipase

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Q. 13 of Quiz- (Que-ID : 584)

In a freezer ice cube will be formed more quickly in trays made of

  • rubber
  • plastic
  • aluminium
  • wood

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Q. 25 of Quiz- (Que-ID : 2918)

At what stage of life is oogenesis initiated in a human female ?

  • At puberty
  • During menarch
  • During menopause
  • During embryonic development

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Q. 24 of Quiz- (Que-ID : 2917)

Acrosome is a type of

  • lysosome
  • flagellum
  • ribosome
  • basal body

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Q. 6 of Quiz- (Que-ID : 3374)

Biofertilisers are

  • some bacteria and cyanobacteria
  • fertilisers formed by ploughing in barseem
  • fertilisers obtained by decay of dead organisms
  • fertilisers prepared by mixing cattle dung with crop residues

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Q. 25 of Quiz- (Que-ID : 3018)

The number of chromosome and the amount of DNA are changed in

  • Metaphase and M phase
  • Anaphase and S phase
  • Interphase and S phase
  • None of these

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Q. 19 of Quiz- (Que-ID : 2962)

Synthesis of DNA from RNA is explained by

  • central dogma reverse
  • reverse transcription
  • feminism
  • all of these

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Q. 12 of Quiz- (Que-ID : 3405)

In an experiment, recombinant DNA bearing ampicillin-resistance gene is transferred into E.coli cells. The host cells are then cultured on a medium containing ampicillin. The result will be

  • both transformants and non-transformants cannot survive
  • both transformants and non-transformants can survive.
  • transformants only and not the non-transformants can survive
  • transformants cannot survive, but non-transformants can not.

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Directions : DSSSB 2021 question

Q. 20 of Quiz- (Que-ID : 4668)

The compound interest on ₹4,000 for 2 years at 5% per annum compounded annually is:

  • ₹410
  • ₹400
  • ₹420
  • ₹450

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Q. 22 of Quiz- (Que-ID : 2991)

Ciliated columnar cells are lined in which of the following

  • DCT
  • Both a and c
  • PCT
  • None of the above

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Q. 1 of Quiz- (Que-ID : 2944)

Which of the following statements is the most appropriate for sickle cell anaemia ?

  • It cannot be treated with iron supplements.
  • It is a molecular disease.
  • It conferes resistance to acquiring malaria
  • All of the above.

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Q. 25 of Quiz- (Que-ID : 3068)

Most of the enzymes of the TCA cycle are present in

  • Intermembrane space of mitochondria
  • Mitochondrial matrix
  • Inner membrane of mitochondria
  • Cytoplasm

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Q. 11 of Quiz- (Que-ID : 582)

The capacity of communication channel is measured in

  • Band rate
  • Band width
  • Data flow
  • Bit capacity

Discuss View Answer

Q. 23 of Quiz- (Que-ID : 3391)

Biogas is produced by

  • aerobic breakdown of biomass
  • anaerobic breakdown of biomass
  • with the help of methanogenic bacteria
  • both (b) and (c)

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Q. 3 of Quiz- (Que-ID : 2821)

Read the following statements and select the incorrect one.

  • Cucurbits and coconuts are monoecious plants
  • Papayas and date palms are dioecious plants.
  • Leeches and tapeworms are bisexual animals.
  • Sponges and coelenterates are unisexual animals

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Q. 13 of Quiz- (Que-ID : 85)

What is the name of the longest bone of thigh?

  • Vistula
  • Femur
  • Fibula
  • Humerous

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Q. 12 of Quiz- (Que-ID : 962)

Which of the following rivers flows in Germany?

  • Volga
  • Danube
  • Thames
  • Seine

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Q. 12 of Quiz- (Que-ID : 3380)

Statins used for lowering blood cholesterol level are extracted from

  • algae
  • bacteria
  • viruses
  • yeast

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Q. 3 of Quiz- (Que-ID : 2671)

What is life span of RBC in days

  • 120
  • 110
  • 115
  • 125

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Q. 23 of Quiz- (Que-ID : 2916)

The process of release of spermatozoa from Sertoli cells into cavity of the seminiferous tubules is called

  • spermiogenesis
  • spermatogenesis
  • spermatocytogenesis
  • spermiation

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Directions : SSC 2022 question

Q. 11 of Quiz- (Que-ID : 4664)

A sum of ₹8,000 amounts to ₹9,261 in 2 years at compound interest. What is the rate of interest?

  • 5%
  • 7.5%
  • 10%
  • 12.5%

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Q. 12 of Quiz- (Que-ID : 583)

Which of the following has the highest frequency ?

  • x-rays
  • cosmic rays
  • microwaves
  • radio waves

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Q. 5 of Quiz- (Que-ID : 2648)

Thoracic chamber is dorsally formed by

  • Vertebral column
  • Sternum
  • Ribs
  • Diaphragm

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Directions : SSC 2021 question

Q. 16 of Quiz- (Que-ID : 4665)

At what rate of simple interest will a sum of money double itself in 12 years?

  • 8.33%
  • 10%
  • 12%
  • 14%

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Q. 14 of Quiz- (Que-ID : 3282)

In gymnosperms, the development of pollen grains occurs in

  • Strobili
  • Microsporangia
  • Megasporangia
  • Macrosporangia

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Q. 8 of Quiz- (Que-ID : 2676)

Which among the following WBC secrete histamine, serotonin,heparin

  • Eosinophil
  • Neutrophil
  • Basophil
  • None of the above

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Q. 3 of Quiz- (Que-ID : 2616)

Where is paratoid salivary gland is situated

  • Lower jaw
  • Below tongue
  • Upper jaw
  • Cheek

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Directions : DSSSB 2021 question

Q. 15 of Quiz- (Que-ID : 4663)

What is the compound interest on ₹10,000 at 5% per annum compounded yearly for 2 years?

  • ₹1,000
  • ₹1,025
  • ₹1,050
  • ₹1,100

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Q. 13 of Quiz- (Que-ID : 85)

What is the name of the longest bone of thigh?

  • Vistula
  • Femur
  • Fibula
  • Humerous

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Q. 20 of Quiz- (Que-ID : 3288)

Pinus differs from mango in having

  • Tree habit
  • Green leaves
  • Ovules not enclosed in ovary
  • Wood

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