Practice Blood Circulatory System RRB PYQ questions from Railway examinations, including RRB NTPC PYQ, RRB Group D PYQ, RRB JE PYQ, RRB ALP PYQ and RRB Technician PYQ. This topic-wise Biology question set covers important concepts related to blood, the human circulatory system, heart, blood vessels and the transportation of substances in the human body.
The questions cover important areas such as components of blood, red blood cells, white blood cells, platelets, plasma, blood groups, the structure and functions of the heart, arteries, veins, capillaries, circulation of blood and pulse. These concepts are important for General Science and Biology preparation for Railway examinations.
Whether you are preparing for RRB NTPC Blood Circulatory System PYQ, RRB Group D Blood Circulatory System PYQ, RRB JE Blood Circulatory System PYQ, RRB ALP Blood Circulatory System PYQ, or RRB Technician Blood Circulatory System PYQ, practice these previous year questions regularly to strengthen your Biology preparation.
Start practicing Blood Circulatory System RRB PYQs with answers and explanations and strengthen your Railway Biology preparation.
71
The technology that uses the reflection of ultrasound waves to produce images of the heart is known as:
RRB NTPC (Stage-I)
05/03/2021 (Shift-I)
2021
✓ Answer:CEchocardiography
Echocardiography uses reflected ultrasound to produce images of the heart and assess its structure and function.
72
Haemoglobin is found in _____.
RRB JE
29/05/2019 (Shift-III)
2019
✓ Answer:BBlood
Haemoglobin is the iron-containing pigment in red blood cells. It binds oxygen in the lungs and transports it to body tissues.
73
Plasma, a constituent of blood, is a:
RRB NTPC (Stage-I)
19/01/2017 (Shift-I)
2017
✓ Answer:CFluid
Plasma is the liquid matrix of blood. It contains water, proteins and dissolved substances and transports nutrients, hormones, carbon dioxide and nitrogenous wastes.
74
Which component of the blood transports food, CO₂ and nitrogenous waste?
RRB ALP & Technician
14/08/2018 (Shift-I)
2018
✓ Answer:DPlasma
Plasma is the liquid matrix of blood. It contains water, proteins and dissolved substances and transports nutrients, hormones, carbon dioxide and nitrogenous wastes.
75
The protein in haemoglobin is:
RRB JE
25/05/2019 (Shift-III)
2019
✓ Answer:BGlobin
Haemoglobin consists of globin protein chains associated with iron-containing haem groups.
76
Which of the following options is not true about red blood cells?
RRB Group-D
09/10/2018 (Shift-II)
2018
✓ Answer:CLength: 5.7 µm
A typical human red blood cell has a diameter of about 7–8 µm, rather than 5.7 µm.
77
The pH level of the human body is:
RRB ALP & Technician
20/08/2018 (Shift-I)
2018
✓ Answer:A7.0 to 7.8
The source key selects 7.0–7.8. This is imprecise: different body fluids have different pH values, and normal blood pH is tightly regulated around 7.35–7.45.
78
Human blood platelets release _____ which helps in blood clotting.
RRB NTPC (Stage-I)
27/04/2016 (Shift-III)
2016
✓ Answer:AProthrombin
The source key gives prothrombin. The wording is inaccurate: prothrombin is primarily made in the liver and circulates in plasma; platelets provide surfaces and release substances that promote clotting.
79
Which of the following veins collects blood from the anterior parts of the body?
RRB Group-D
12/11/2018 (Shift-II)
2018
✓ Answer:CSuperior vena cava
The intended answer is superior vena cava, which returns blood from the upper body, including the head, neck and upper limbs, to the right atrium.
80
The pH range of a human body is:
RRB NTPC (Stage-I)
04/01/2021 (Shift-I)
2021
✓ Answer:D7.35–7.45
The intended reference is blood pH, normally about 7.35–7.45. Other body fluids have different pH ranges.
Showing 71 – 80 of 127 MCQ Questions | Page 8 of 13
Tags: Blood Circulatory System RRB Biology PYQ, Blood Circulatory System Previous Year Questions, RRB NTPC Blood Circulatory System PYQ, RRB Group D Blood Circulatory System PYQ, RRB JE Blood Circulatory System PYQ, RRB ALP Blood Circulatory System PYQ, RRB Technician Blood Circulatory System PYQ, Blood Circulatory System Questions for Railway Exams, Blood Circulatory System MCQ for RRB Exams, Human Circulatory System RRB PYQ
The questions cover important areas such as components of blood, red blood cells, white blood cells, platelets, plasma, blood groups, the structure and functions of the heart, arteries, veins, capillaries, circulation of blood and pulse. These concepts are important for General Science and Biology preparation for Railway examinations.
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