Army Clerk/SKT GS Online Test – (General Science)

The following questions are for the purpose of practice of clerk written exam specially selected from the previous year papers. The questions given here are among the most common questions asked in CEE of clerk, but it does not necessarily mean that they will come in exam. These questions are meant just for practice.

Please write us in comment section if you find any question or answer wrong given here

See also :- Army clerk sample and previous year papers.

Q1. When a gas is turned into a liquid, the process is called
गैस का तरल में परिवर्तित होने की प्रक्रिया को कहते हैं

1. condensation/संघनन
2. evaporation/वाष्पीकरण
3. deposition/निक्षेप
4. sublimation/उच्च बनाने की क्रिया
5. Answer is: condensation/संघनन

1. Facts In detail
2. When a liquid is turned into a gas, the process is called Evaporation.
   When gas transforms into solid, the process is called Deposition.
   When Solid turned into gas, the process is called Sublimation.

Q 2. How many muscles are there in human body ?
मानव शरीर में कितनी मांसपेशियाँ होती हैं?

1. 637
2. 638
3. 639
4. 640
5. Answer is: 640

1. Facts In detail
2. The number of muscles in the human body varies from around 640 to 850. We have 3 types of muscles in our body: skeletal, visceral, and cardiac.

Q 3. What is the life span of RBC?
RBC का जीवनकाल कितने दिन का होता है?

1. 100 days/100 दिन
2. 110 days/110 दिन
3. 120 days/120 दिन
4. 130 days/130 दिन
5. Answer is: 120 days/120 दिन

1. Facts In detail
2. When matured, in a healthy individual Red Blood cells live in blood circulation for about 100 to 120 days.

Q 4. Growth hormone are produced by
वृद्धि हॉर्मोन्स किसके द्वारा निष्काषित होते हैं?

1. Endocrine glands/अंत: स्रावी ग्रंथियां
2. Pituitary glands/पीयूष ग्रंथि
3. Hypothalamus/अध:श्चेतक
4. Pancreas/अग्न्याशय
5. Answer is: Pituitary glands/पीयूष ग्रंथि

1. Facts In detail
2. The pituitary gland is a small pea-sized gland that plays a major role in regulating vital body functions and general well being. It is referred to as the body’s ‘master gland’ because it controls the activity of most other hormone-secreting glands.

Q 5. Which of the following is the ‘master gland’?
निम्नलिखित में से ‘मास्टर ग्रंथि’ कौन है?

1. Pancreas/अग्न्याशय
2. Thymus gland/थाइमस ग्रंथि
3. Pituitary gland/पीयूष ग्रंथि
4. Pineal gland/पीनियल ग्रंथि
5. Answer is: Pituitary gland/पीयूष ग्रंथि

1. Facts In detail
2. Pituitary gland is referred as the body’s ‘master gland’ because it controls the activity of most other hormone-secreting glands.

Q 6. What is the formula of Sulfuric acid?
सल्फ्यूरिक एसिड की फार्मूला क्या है?

1. H2SO4
2. SO2
3. Na2SO4
4. K2SO4
5. Answer is: H2SO4

1. Facts In detail
2. Sulfuric acid is a highly corrosive strong mineral acid with the molecular formula H2SO4 and molecular weight 98.079 g/mol.

Q 7. What range of frequencies are usually referred to as audio frequencies for humans?
मनुष्य की श्रवण छमता कितनी आवर्ती होती है?

1. 0 to 20 Hertz
2. 20 to 20,000 Hertz
3. 200 to 200,000 Hertz
4. 10,000 to 30,000 Hertz
5. Answer is: 20 to 20,000 Hertz

1. Facts In detail
2.  The audible frequency range for humans is typically given as being between about 20 Hz and 20,000 Hz (20 kHz), though the high frequency limit usually reduces with age.

Q 8.Which science is sometimes called ‘central science’?
कौन सा विज्ञानं केंद्रीय विज्ञानं कहलाता है?

1. Physics/भौतिक विज्ञान
2. Chemistry/रसायन विज्ञान
3. Biology/जीवविज्ञान
4. Geology/भूगर्भशास्त्र
5. Answer is: Chemistry/रसायन विज्ञान

1. Facts In detail
2.  Chemitry is sometimes called ‘central science’ because of its role in connecting the physical sciences, which include chemistry, with the life sciences and applied sciences such as medicine and engineering.

Q 9. Which acid is used by the body to help digestion?
पाचन में कौन सा अम्ल महत्वपूर्ण है

1. Hydrochloric Acid/हाइड्रोक्लोरिक एसिड
2. Sulphuric Acid/सल्फ्यूरिक एसिड
3. Acetic Acid/सिरका अम्ल
4. Tartaric acid/टारटरिक अम्ल
5. Answer is: Hydrochloric Acid/हाइड्रोक्लोरिक एसिड

1. Facts In detail
2. Hydrochloric acid is used to break down foods and causes the release of enzymes that further aid digestion.

Q 10.  What is the scientific name of Laughing Gas?
हंसने वाली गैस का वैज्ञानिक नाम क्या है ?

1. Nitrous Oxide/नाइट्रस ऑक्साइड
2. Sodium Bicarbonate/सोडियम बाइकार्बोनेट
3. Phosphorous Pentoxide/फास्फोरस पेन्टोसाइड
4. Carbon Tetrachloride/कार्बन टेट्राक्लोराइड
5. Answer is: Nitrous Oxide/नाइट्रस ऑक्साइड

1. Facts In detail
2. Nitrous oxide also known as sweet-smelling gas has several side effects that alter brain activity.

Q 11.  What do “x” mean in “x-rays”?
X-rays में “X” का मतलब क्या है?

1. Cross/क्रॉस
2. Mark/चिह्न
3. Star/तारा
4. Unknown/अनजान
5. Answer is: Unknown/अनजान

1. Facts In detail
2. “x” in x-ray was used because the scientist who discovered x-rays, Wilhelm Conrad Rontgen, didn’t know the nature of the rays. Thus, it is unknown till now.

Q 12.  What is the pH value of pure water?
शुद्ध पानी का pH मान कितना होता है?

1. 3
2. 6
3. 7
4. 8
5. Answer is: 7

1. Facts In detail
2. In general, water with a pH lower than 7 is considered acidic, and with a pH greater than 7 is considered basic.

Q 13.  When is World Ozone Day observed?
विश्व ओजोन दिवस कब मनाया जाता है?

1. September 15
2. September 16
3. September 17
4. September 26
5. Answer is: September 16

1. Facts In detail
2. World Ozone Day has been celebrated since 1994 and was established by the United Nations General Assembly. The day is mainly intended to spread awareness of the depletion of the Ozone Layer and search for solutions to preserve it.

Q 14.  Which of the following is an important element of stainless steel?
स्टेनलेस स्टील का मत्वपूर्ण तत्व क्या है ?

1. Iron/लोहा
2. Magnesium/मैग्नीशियम
3. Copper/तांबा
4. Nickel/निकिल
5. Answer is: Nickel/निकिल

1. Facts In detail
2. Stainless steel comprises of 8% Nickel along with 10.5% Chromium.

Q 15.  What is a zoom lens?
ज़ूम लेंस क्या है?

1. It is a lens having fixed focal length/
   इस लेंस में निर्धारित फोकल लेंथ होती है
2. It is a lens having variable focal length/
   इस लेंस फोकल लेंथ की स्थिति बदलती सकती है
3. It is a lens used in radio telescopes/
   इस लेंस को रेडियो टेलिस्कोप में उपयोग किया जाता है.
4. None of the above/
   इनमे से कोई नहीं
5. Answer is: It is a lens having variable focal length/
   इस लेंस फोकल लेंथ की स्थिति बदलती सकती है

1. Facts In detail
2. A true zoom lens, also called a parfocal lens, is one that maintains focus when its focal length changes.

Q 16.  The time taken by the sun to revolve around the center of our galaxy is?
सूर्य को आकाशगंगा के केंद्र का चक्कर लगाने में कितना समय लगता है ?

1.  50 mn years
2. 100 mn years
3. 250 mn years
4. 365 mn years
5. Answer is: 250 mn years

1. Facts In detail
2. The Sun and the solar system move at about 800 thousand kilometers an hour. Even at this blazing speed, it takes the sun approximately 225-250 million years to complete one journey around the galaxy’s center

Q 17.  Earthquake waves travel fastest in?
भूकंप की तरंगें सबसे तेज किसमे चलती हैं?

1. Water/पानी
2. Soil/मिट्टी
3. Rock/चट्टान
4. Air/वायु
5. Answer is: Water

1. Facts In detail
2. Seismic waves are the waves of energy caused by the sudden breaking of rock within the earth or an explosion.
   Seismology is the study of earthquakes and seismic waves.

Q 18.  Chemically, bleaching powder is
ब्लीचिंग पाउडर का रासायनिक नाम क्या है?

1. Sodium hydroxide/सोडियम हाइड्रॉक्साइड
2. Calcium hydroxide/कैल्शियम हाइड्रॉक्साइड
3. Calcium hypochlorite/कैल्शियम हाइपोक्लोराइड
4. Calcium sulphate/कैल्शियम सल्फेट
5. Answer is: Calcium hypochlorite/कैल्शियम हाइपोक्लोराइड

1. Facts In detail
2. bleaching powder, also known as Calcium hypochlorite is an inorganic compound with formula Ca(ClO)2.

Q 19.  Mist is caused by
धुंध किस कारण से होती है?

1. Dry ice/सूखी बर्फ
2.  Ice at low temperature/कम तापमान पर बर्फ
3. Carbon- monoxide in solid form/ठोस रूप में कार्बन मोनोऑक्साइड
4. Water vapours at low temperature/कम तापमान पर जल वाष्प
5. Answer is: Water vapours at low temperature/कम तापमान पर जल वाष्प

1. Facts In detail
2. Mist is a phenomenon caused by small droplets of water suspended in air. Physically, it is one instance of a dispersion.

Q 20.  Which of the following planets rotates clock wise?
निम्नलिखित ग्रहों में से कौन सा दक्षिणावर्त घूमता है?

1. Pluto/प्लूटो
2. Mercury/बुध
3. Jupiter/बृहस्पति
4. Venus/शुक्र
5. Answer is: Venus/शुक्र

1. Facts In detail
2. For starters, it spins in the opposite direction from most other planets, including Earth, so that on Venus the sun rises in the west.

See also: Army clerk computer science test

Soldier clerk in Indian Army is one such excellent career prospect with time to time chances of promotion. But, the written exam of this trade is a bit difficult having a good level of General Knowledge and General Science. So, if you think that there is a need of more practice, apart from this online test, then Best Books For Indian Army will surely help you in practicing and clearing your basic concepts as well.