Practice Skeleton System RRB PYQ questions asked in various Railway Recruitment Board examinations. This page provides important previous year questions from the Skeleton System chapter along with correct answers and clear explanations to help you prepare effectively for RRB Biology.
The Skeleton System is an important Biology topic that covers the structure and functions of the human skeleton. It includes important concepts such as bones, joints, cartilage, the axial skeleton, the appendicular skeleton, and the functions of the skeletal system. Understanding these concepts can help you prepare for Biology questions asked in Railway examinations.
31
Which statement about voluntary muscles is INCORRECT?
RRB Group-D
15/09/2022 / Shift-III
2022
✓ Answer:ATheir cells are long, cylindrical, unbranched and uninucleate.
Skeletal muscle fibres are multinucleate, not uninucleate.
32
Which is the longest bone in the human body?
RRB NTPC (Stage-I)
21/01/2021 / Shift-II
2021
✓ Answer:DFemur
The femur, or thigh bone, is the longest bone in the human body.
33
The hard matrix of bone is composed of which substances?
RRB Group-D
19/09/2022 / Shift-III
2022
✓ Answer:CCalcium and phosphorus
Calcium and phosphorus, mainly in calcium phosphate minerals, give bone its hardness.
34
How many bones are present in an adult human body?
RRB NTPC (Stage-I)
09/01/2021 / Shift-II
2021
✓ Answer:C206
An adult human skeleton conventionally contains 206 bones.
35
Which of the following causes muscle cramps?
RRB Group-D
17/09/2022 / Shift-II
2022
✓ Answer:BInsufficient oxygen supply to muscles
Source key: B. The source uses the simplified explanation of insufficient oxygen during strenuous activity. Muscle cramps have multiple causes and cannot universally be attributed to lack of oxygen.
36
Which bone and body-part pair is incorrect?
RRB NTPC (Stage-I)
23/07/2021 / Shift-II
2021
✓ Answer:CCarpal – Neck
Source key: C. Carpals are wrist bones, not neck bones. The ulna is more precisely a forearm bone, so option D is also loosely worded.
37
Which is the strongest bone in the human body?
RRB JE
27/05/2019 / Shift-I
2019
✓ Answer:DThigh bone
The femur, or thigh bone, is the largest and strongest bone in the human body.
38
Which muscle produces the rhythmic pumping of the heart?
RRB Group-D
27/11/2018 / Shift-III
2018
✓ Answer:CCardiac
Cardiac muscle contracts rhythmically to pump blood.
39
Which bones surround the chest?
RRB NTPC (Stage-I)
05/04/2016 / Shift-II
2016
✓ Answer:CRibs
The ribs form the rib cage around the chest and protect the heart and lungs.
40
How many nuclei are present in striated skeletal muscle fibres?
RRB Group-D
05/12/2018 / Shift-III
2018
✓ Answer:CMany
Skeletal muscle fibres are multinucleate, with many nuclei in each fibre.
These RRB Skeleton System PYQ questions help you revise important facts about the human skeleton, the number and types of bones, different joints, and their roles in supporting and protecting the body. Each question includes the correct answer and a clear explanation for effective revision and practice.
Whether you are preparing for RRB NTPC Skeleton System PYQ, RRB Group D Skeleton System PYQ, RRB JE Skeleton System PYQ, RRB ALP Skeleton System PYQ, or RRB Technician Skeleton System PYQ, practice these previous year questions regularly to strengthen your Biology preparation.
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