📖 Tier 1: Prepare & Study Guide ✓ 100% Solved with Rationales

MALI (BPS-01) - LARKANA REGION Complete Preparation Guide & Solved Questions (2026) - Apex Rankers

Direct Departmental Recruitment Examination Syllabus & Question Bank

2425 Total Solved Questions
~3638 mins Estimated Reading Time
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General Science

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Q. 1 General Knowledge
Difficulty: Easy (1 Mark)
Hygrometer is used for measuring the
A
Speed of sound
B
Density of milk
C
Humidity of air
✓ Correct
D
Specific gravity of liquids
💡 Step-by-Step Explanation & Concept Rationale
A hygrometer is a weather instrument used to measure the amount of water vapor (humidity) in the atmosphere.
Q. 2 General Knowledge
Difficulty: Easy (1 Mark)
Which of the following is a non-metal?
A
Mercury
B
Magnesium
C
Manganese
D
Silicon
✓ Correct
💡 Step-by-Step Explanation & Concept Rationale
Silicon is a chemical element with the symbol Si and atomic number 14; it is classified as a metalloid/non-metal.
Q. 3 General Knowledge
Difficulty: Easy (1 Mark)
Which of the following pairs is not correct?
A
Barometer – Torricelli
B
Telescope – Galileo
C
Aeroplane – Wright brothers
D
Bicycle – Edison
✓ Correct
💡 Step-by-Step Explanation & Concept Rationale
Thomas Edison invented the incandescent light bulb and phonograph, while the bicycle was developed by others like Kirkpatrick Macmillan.
Q. 4 General Knowledge
Difficulty: Medium (1 Mark)
Which of the following vitamins is associated with coagulation of blood?
A
Vitamin A
B
Vitamin B
C
Vitamin E
D
Vitamin K
✓ Correct
💡 Step-by-Step Explanation & Concept Rationale
Vitamin K is essential for the synthesis of proteins required for blood clotting (coagulation).
Q. 5 General Knowledge
Difficulty: Easy (1 Mark)
Bauxite is an ore of:
A
Copper
B
Iron
C
Aluminum
✓ Correct
D
Manganese
💡 Step-by-Step Explanation & Concept Rationale
Bauxite is the world's main source of aluminum, containing aluminum oxides and hydroxides.
Q. 6 General Knowledge
Difficulty: Easy (1 Mark)
Which of the following is used in fire extinguishers?
A
Carbon sulphite
B
Carbon monoxide
C
Carbon dioxide
✓ Correct
D
Mixture of the gases
💡 Step-by-Step Explanation & Concept Rationale
CO2​ is used because it is denser than air and does not support combustion, effectively smothering the fire.
Q. 7 General Knowledge
Difficulty: Easy (1 Mark)
What is the normal rate of heart beat in human beings?
A
32 times per min.
B
42 times per min
C
62 times per min
D
72 times per min
✓ Correct
💡 Step-by-Step Explanation & Concept Rationale
A normal resting heart rate for adults ranges from 60 to 100 beats per minute, with 72 being the standard average.
Q. 8 General Knowledge
Difficulty: Medium (1 Mark)
Universal blood donor belongs to the blood group
A
A
B
B
C
AB
D
O
✓ Correct
💡 Step-by-Step Explanation & Concept Rationale
Group O-negative blood can be given to patients of any blood group because it lacks A, B, and Rh antigens.
Q. 9 General Knowledge
Difficulty: Easy (1 Mark)
Which of the following is entirely a plant product?
A
Lac
B
Resin
C
Agar-Agar
✓ Correct
D
Latex
💡 Step-by-Step Explanation & Concept Rationale
Agar-agar is a gelatinous substance derived from red algae (seaweed).
Q. 10 General Knowledge
Difficulty: Easy (1 Mark)
In animals, the principal role of Vitamin E is
A
Respiration
B
Reproduction
✓ Correct
C
Digestion
D
Transpiration
💡 Step-by-Step Explanation & Concept Rationale
Vitamin E is essential for maintaining reproductive health and fertility in various animal species.
Q. 11 General Knowledge
Difficulty: Easy (1 Mark)
Hereditary disorders are the result of
A
Defective DNA nucleus
✓ Correct
B
Lack of vitamin E
C
Defective RNA nucleus
D
None of these
💡 Step-by-Step Explanation & Concept Rationale
Genetic or hereditary disorders are caused by mutations or abnormalities in the DNA sequence within cell nuclei.
Q. 12 General Knowledge
Difficulty: Easy (1 Mark)
Which of the following roofs provide better protection against heat?
A
Reinforced concrete
B
Asbestos sheets
✓ Correct
C
Cement slab
D
None of these
💡 Step-by-Step Explanation & Concept Rationale
Asbestos was historically used for roofing because of its excellent thermal insulation and heat-resistant properties.
Q. 13 General Knowledge
Difficulty: Easy (1 Mark)
Which of the following is not a vitamin?
A
Trypsin
✓ Correct
B
Ascorbic acid
C
Riboflavin
D
Niacinamide
💡 Step-by-Step Explanation & Concept Rationale
Trypsin is a digestive enzyme that breaks down proteins; the others are vitamins (C, B2​, and B3​).
Q. 14 General Knowledge
Difficulty: Easy (1 Mark)
Which of the following is not the colour in rainbow?
A
Black
✓ Correct
B
Blue
C
Indigo
D
Violet
💡 Step-by-Step Explanation & Concept Rationale
Black is the absence of visible light; the rainbow consists of Red, Orange, Yellow, Green, Blue, Indigo, and Violet.
Q. 15 General Knowledge
Difficulty: Easy (1 Mark)
Oxidation results in ————
A
Gain of electrons
B
Loss of electrons
✓ Correct
C
Gain of protons
D
Loss of protons
💡 Step-by-Step Explanation & Concept Rationale
Oxidation is a chemical reaction involving the loss of electrons by a molecule, atom, or ion.
Q. 16 General Knowledge
Difficulty: Easy (1 Mark)
Which of the following substances exhibit the property of sublimation?
A
Ice
B
Camphor
✓ Correct
C
Ethyl alcohol
D
Wax
💡 Step-by-Step Explanation & Concept Rationale
Sublimation is the transition of a substance directly from the solid to the gas state; camphor exhibits this.
Q. 17 General Knowledge
Difficulty: Easy (1 Mark)
The layer of atmosphere which affords protection to human beings against solar ultraviolet radiation is:
A
Troposphere
B
Stratosphere
✓ Correct
C
Ionosphere
D
Exosphere
💡 Step-by-Step Explanation & Concept Rationale
The stratosphere contains the ozone layer, which absorbs most of the Sun's harmful ultraviolet radiation.
Q. 18 General Knowledge
Difficulty: Easy (1 Mark)
Bronze is an alloy of
A
Copper and Zinc
B
Tin and Zinc
C
Copper and Tin
✓ Correct
D
Iron and Zinc
💡 Step-by-Step Explanation & Concept Rationale
Bronze is a metal alloy consisting primarily of copper, usually with tin as the main additive.
Q. 19 General Knowledge
Difficulty: Easy (1 Mark)
An isotope of Uranium employed as fuel is
A
U-232
B
U-235
✓ Correct
C
U-238
D
U-240
💡 Step-by-Step Explanation & Concept Rationale
Uranium-235 is the fissile isotope used as the primary fuel for nuclear reactors and weapons.
Q. 20 General Knowledge
Difficulty: Easy (1 Mark)
Which of the following are the Rabi crops?
A
Wheat, Rice, Mustard
B
Rice, Maize, Groundnut
C
Wheat, Barley, Mustard
✓ Correct
D
Barley, Mustard, Groundnut
💡 Step-by-Step Explanation & Concept Rationale
Rabi crops are sown in winter and harvested in spring; wheat, barley, and mustard are typical examples in South Asia.
Q. 21 General Knowledge
Difficulty: Easy (1 Mark)
Gypsum salt is:
A
CaSO4​⋅2H2​O
✓ Correct
B
CaSO4​⋅H2​O
C
2CaSO4​⋅H2​O
D
CaSO4​⋅5H2​O
💡 Step-by-Step Explanation & Concept Rationale
Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate.
Q. 22 General Knowledge
Difficulty: Easy (1 Mark)
Which of the following is most important ore of aluminum?
A
Hematite
B
Bauxite
✓ Correct
C
Limestone
D
Bronze
💡 Step-by-Step Explanation & Concept Rationale
Bauxite is the primary commercial ore from which aluminum is extracted.
Q. 23 General Knowledge
Difficulty: Easy (1 Mark)
Earth’s crust have the abundant reserves of ———
A
Iron, Silicon and Oxygen
B
Silicon, Nitrogen and Aluminum
C
Silicon, Oxygen and Aluminum
✓ Correct
D
Iron, Silicon and Nitrogen
💡 Step-by-Step Explanation & Concept Rationale
These three elements are the most abundant in the Earth's crust by mass.
Q. 24 General Knowledge
Difficulty: Easy (1 Mark)
Caustic soda is ———
A
Na2​CO3​
B
NaHCO3​
C
NaOH
✓ Correct
D
NaCl
💡 Step-by-Step Explanation & Concept Rationale
Caustic soda is the common name for the inorganic compound sodium hydroxide.
Q. 25 General Knowledge
Difficulty: Easy (1 Mark)
Pure gold is ———
A
17 carat
B
20 carat
C
24 carat
✓ Correct
D
36 carat
💡 Step-by-Step Explanation & Concept Rationale
Gold purity is measured in carats; 24-carat gold is 99.9% pure.
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