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Question 237

What is condensation?

AChange of Solid into liquid

BChange of vapour into liquid

CChange of Liquid into Gas

DNone of these

Show answerB. Change of vapour into liquidExplanation not yet available.
Question 236

The heart covered by a membrane called

AMyocardium.

BPericardium

CAorta

DNone of These

Show answerB. PericardiumExplanation: The heart is enclosed in a double-layered protective membrane called the pericardium. The outer fibrous layer protects the heart and anchors it within the chest cavity, while the inner serous layer secretes pericardial fluid that reduces friction during heartbeats. This fluid-filled sac ensures smooth and cushioned movement of the heart as it contracts and relaxes continuously.
Question 235

Sphygmomanometer is an instrument used for measuring

AHeart beat

BVision of eyes

CBlood Sugar

DBlood Pressure

Show answerD. Blood PressureExplanation: A sphygmomanometer is a medical instrument used to measure blood pressure. It consists of an inflatable cuff, a mercury or aneroid gauge, and a bulb for inflation. The cuff is wrapped around the upper arm and inflated to temporarily stop blood flow. As pressure is slowly released, readings are taken for systolic (maximum) and diastolic (minimum) pressure. Normal blood pressure for a healthy adult is about 120/80 mmHg.
Question 234

An electric bulb has a filament made of

ABoron carbide

BTungsten

CTantalum

DRhenium

Show answerB. TungstenExplanation: The filament of an electric bulb is made of tungsten because it has a very high melting point of about 3380°C and good tensile strength. When electric current passes through it, tungsten glows brightly without melting, converting electrical energy into light and heat. It also has low vapour pressure, which prevents quick evaporation of the filament even at high temperatures, ensuring longer bulb life.
Question 233

What is the temperature when density of water is the highest

A5 degree Celsius

B6 degree Celsius

C4 degree Celsius

D3 degree Celsius

Show answerC. 4 degree CelsiusExplanation: Water shows an unusual property known as anomalous expansion. Its density is maximum at 4°C. When cooled from higher temperatures, water contracts till 4°C, becoming denser. Below 4°C, it expands instead of contracting, so its density decreases. This property allows ice to float and prevents water bodies from freezing solid, protecting aquatic life during winters.
Question 232

Smallest state in the world in terms of area is

AVatican

BMonaco

CNauru

DNauru

Show answerA. VaticanExplanation not yet available.
Question 231

Who was the Prime Minister of England at the time of India's Independence?

ASir Winston Churchill

BWinston Churchill

CRamsay MacDonald

DClement Attlee

Show answerD. Clement AttleeClement Attlee was the Prime Minister of England when India gained independence in 1947. His government took the crucial decision to grant freedom to India and oversaw the process of partition and transfer of power from British rule to Indian leaders.
Question 230

Which line demarcates India Pakistan border?

ARadcliff Line

BDurand Line

CMcmohan line

D38th Parallel

Show answerA. Radcliff LineThe Radcliffe Line refers to the boundary demarcation line that was drawn by a British lawyer, Sir Cyril Radcliffe, during the partition of British India in 1947.
Question 229

Who built capital of Tripura at Agartala?

AMaharaja krishna Manikya

BMaharaja krishna Kishore Manikya

CMaharaja Birchandra Manikya

DMaharaja Radha kishore Manikya

Show answerB. Maharaja krishna Kishore ManikyaExplanation not yet available.
Question 228

The oldest republic in Europe is

APoland

BSan Marino

CItaly

DSwitzerland

Show answerB. San MarinoExplanation not yet available.
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