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.
51
Some features of the circulatory system in humans are mentioned below. Select the incorrect option.
RRB Group-D
22/08/2022 (Shift-III)
2022
✓ Answer:DHypertension is caused by constriction of veins
Constriction of arterioles increases peripheral resistance and can raise arterial blood pressure. Constriction of veins is not the standard explanation for hypertension.
52
Which of the following pigments has a high affinity for oxygen?
RRB Group-D
18/09/2022 (Shift-II)
2022
✓ Answer:AHemoglobin
The source key identifies haemoglobin, which binds oxygen reversibly and carries it in human blood.
53
The normal systolic pressure of human blood is:
RRB NTPC (Stage-I)
05/04/2021 (Shift-I)
2021
✓ Answer:D120 mm Hg
The conventional textbook reference value for adult blood pressure is 120/80 mmHg: 120 systolic and 80 diastolic.
54
Systolic blood pressure is exerted by the blood against the walls of the artery during which of the following phases?
RRB Group-D
24/08/2022 (Shift-I)
2022
✓ Answer:AVentricular contraction
Systolic pressure is the arterial pressure associated with ventricular contraction and ejection of blood.
55
Which of the following is an example of a human cell that has the ability to modify its shape?
RRB Group-D
17/08/2022 (Shift-III)
2022
✓ Answer:BWBC
White blood cells can change shape for amoeboid movement and pass through vessel walls to reach infected tissues.
56
Select the option that is not true regarding the circulatory system.
RRB Group-D
03/10/2018 (Shift-III)
2018
✓ Answer:DIt is about 1.7–1.8% of body weight.
The source key identifies D: blood accounts for roughly 7–8% of body weight, not 1.7–1.8%. Blood volume varies with body size; 6.8 litres is not a universal adult value.
57
In which of the following animals does blood go through the heart twice during each cycle?
RRB Group-D
29/09/2022 (Shift-III)
2022
✓ Answer:AMammals, birds and reptiles
Mammals, birds and reptiles have double circulation. Fish generally have a single circulatory circuit.
58
All the veins in the human system carry blood towards the heart. What is the difference between a pulmonary vein and other veins?
RRB Group-D
05/09/2022 (Shift-I)
2022
✓ Answer:APulmonary vein carries oxygenated blood
Pulmonary veins carry oxygenated blood from the lungs to the left atrium. Systemic veins generally carry deoxygenated blood.
59
Which of the following options is not correct about the circulatory system?
RRB Group-D
03/10/2018 (Shift-II)
2018
✓ Answer:DOnly blood is white fluid connective tissue.
The source key identifies D because human blood is red, not white. The percentage in A refers to blood mass, and the volume in C varies with body size.
60
Which of the following statements regarding blood pressure is FALSE?
RRB Group-D
28/09/2022 (Shift-III)
2022
✓ Answer:AThe pressure is much greater in veins than in arteries.
Blood pressure is generally higher in arteries than in veins because arteries receive blood directly from the pumping heart.
Showing 51 – 60 of 127 MCQ Questions | Page 6 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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