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.
61
Which is the smallest bone in the human body?
RRB JE
02/06/2019 / Shift-I
2019
✓ Answer:CStirrup
The stirrup, also called the stapes, is the smallest human bone.
62
Which tissue cushions the surfaces of bones at joints?
RRB Group-D
26/09/2018 / Shift-III
2018
✓ Answer:ACartilage
Articular cartilage covers bone ends at joints, reducing friction and cushioning contact.
63
Where is the smallest bone in the human body located?
RRB JE
28/05/2019 / Shift-I
2019
✓ Answer:CEars
The smallest bone is the stapes, located in the middle ear.
64
Which mineral is essential for bones?
RRB JE
25/05/2019 / Shift-I
2019
✓ Answer:DCalcium
Calcium is an important mineral component of bones.
65
Which is the hardest substance in the human body?
RRB JE
23/05/2019 / Shift-I
2019
✓ Answer:DTooth enamel
Tooth enamel is the hardest substance in the human body because of its high mineral content.
66
Which muscles are also called skeletal muscles?
RRB Group-D
07/12/2018 / Shift-I
2018
✓ Answer:DVoluntary muscles
Skeletal muscles are generally under voluntary control and are attached to the skeleton.
67
Which is the correct classification of the 29 bones associated with the human head?
RRB NTPC (Stage-I)
03/04/2021 / Shift-I
2021
✓ Answer:BForehead 8, Facial 14, Ear 6, Hyoid 1
Source key: B. 'Forehead' in the options means cranial bones. The count combines 8 cranial bones, 14 facial bones, 6 auditory ossicles and 1 hyoid bone. The hyoid lies in the neck.
68
Which is the smallest muscle in the human body?
RRB JE
02/06/2019 / Shift-I
2019
✓ Answer:BStapedius
The stapedius is a small middle-ear muscle attached to the stapes.
69
The ilium, ischium and pubis fuse to form which bone?
RRB NTPC (Stage-I)
22/01/2021 / Shift-I
2021
✓ Answer:BHip bone
Each hip bone develops through fusion of the ilium, ischium and pubis.
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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