Biomechanics Unit 4 Questions and Answers 

5. Example of pivot joint is __________

a) Hip joints

b) Ankle joints

c) Radio ulnar joints

d) Metacarpophalangeal joints

6. Elbow joint is a hinge joint.

a) True

b) False

7. The sternoclavicular articulation is a _________ arthrodial joint.

a) Single

b) Double

c) Triple

d) 4 layered

8. The sternoclavicular joint is a type of __________ joint.

a) Hinge joint

b) Ball and socket

c) Saddle type

d) Pivot

9. What is the stance phase of a gait cycle?

it is the first 60% of the gait cycle and foot keeps ground contact

it is the first 40% of the gait cycle. foot keeps ground contact

it is the first 50% of the gait cycle. foot does not contact ground

none of these

10. Body’s weight passing over supporting lower extremity (30% of gait cycle) is known as

push off

toe off

heel off

mid stance

11. This part of swing phase is the Period from toe off to mid swing (65% of gait cycle), which is known as

early swing

mid swing

late swing

swing phase

12. Events that take place between successive heel contacts of same foot is known as

stride length

heel strike

stride

all the above

13. Distance traveled in one stride, two consecutive heel contacts of same foot is properly known as

consecutive heel contacts

stride

stride distance

stride length

14. Horizontal displacement is the center of gravity as weight shifts from side to side

True

False

15. Humans have ________ joint between sternum and ribs

(a) gliding

(b) angular

(c) cartilaginous

(d) fibrous

16. The joint in our elbow is an example of

(a) hinge joint

(b) ball and socket joint

(c) pivot joint

(d) gliding joint

17. Which of the following joints does not allow any movement?

(a) Synovial joint

(b) Fibrous joint

(c) Ball and Socket joint

(d) Cartilaginous joint

18. Glenoid cavity articulates

(a) Clavicle with acromion

(b) Clavicle with scapula

(c) Scapula with acromion

(d) Humerus with scapula

19. Name the longest and heaviest bone of the body?

A. Femur

B. Fibula

C. Tibia

D. Ilium

20. Name the only movable bone in the skull of man?

A. Ethmoid bone

B. Mandible bone

C. Nasal bone

D. Lacrimal bone

21. Which of the following pair is correctly matched?

a) Cartilaginous joint- skull bones

b) Gliding joint- between zygapophyses of vertebrae

c) Hinge joint- between vertebrae

d) Fibrous joint- between phalanges

22. Name the thinnest bone of human body?

A. Stapes

B. Malleus

C. Incus

D. Fibula

23. Finger bones are also known as………..?

A. Hamate bone

B. Girdles

C. Phalanges

D. Metacarpal

24. What is the medical terminology for the pain in joints called?

A. Chondritis

B. Arthralgia

C. synovitis

D. Rheumatism

25. The main moto of the free body diagrams is to:

a) To reduce the calculation

b) To add the forces with the couples and take out the total

c) To subtract the forces with the couples and take out the total

d) To multiply the forces with the couples and take out the total

26. The simplification of the couple is done for free body diagrams on the basis of the:

a) The clockwise of the anti-clockwise rotation sign convention

b) The simplification is not possible

c) The couple is a vector and thus can’t be simplified

d) The couple is a scalar and can’t be simplified

27. Principle of transmissibility for free body diagrams is:

a) It states that the force acting on the body is a sliding vector

b) It states that the force acting on the body is a rolling vector

c) It states that the force acting on the body is a wedging vector

d) It states that the force acting on the body is a unit vector

28. For equilibrium, the net force acting on the body is zero.

True

False

29. The net force of the body is zero that means the force are not being applied to the body at all and hence the body is in equilibrium.

a) The first part of the statement is false and other part is true

b) The first part of the statement is false and other part is false too

c) The first part of the statement is true and other part is false

d) The first part of the statement is true and other part is true too

30. Which of the following needs to zero for the perfect equilibrium?

a) ∑F=0, ∑M=0 and ∑θ = 0

b) ∑F=0, ∑M≠0 and ∑θ = 0

c) ∑F≠0, ∑M=0 and ∑θ = 0

d) ∑F=0, ∑M=0 and ∑θ≠0

31. Which force applied on a body will tend to stretch or elongate the body?

compressive force

tensile force

bending force

torsional force

32. Which force applied on a body will tend to shrink the body in the direction of force?

compressive force

tensile force

bending force

torsional force

33. In a system if all the forces have a common line of action, then it is called

compressive force

tensile force

collinear forces

torsional force

34. In a system if all the forces have a common point of intersection , then it is called

compressive force

tensile force

collinear forces

concurrent force

35. Other name for condylar joint is ___________

a) Saddle joint

b) Plain joint

c) Hinge Joint

d) ball and socket Joint

36. In a synovial joint, the bones are connected to each other.t

true

False

37. Shoulder joint is an example of ___________

ball and socket joint

hinge joint

saddle joint

plain joint

38. knee joint is an example of ___________

ball and socket joint

hinge joint

saddle joint

plain joint

39. Ankle joint is an example of ___________

ball and socket joint

hinge joint

saddle joint

plain joint

40.  The synovial joint are also known as _________

Periosteum

Diarthrosis

arthrosis

Megablast

41. The study of joints is known as _________

Osteology

Syndesmology

Arthrology

Bonology

42. Sutures are immovable joints.

True

False

43.  Which type of joint lies at the shoulder joint and hip joint?

hinge joint

plain joint

Ball & socket joint

saddle joint

44. Shoulder joint is also known as

humeral joint

glenohumeral joint

radial joint

ulnar joint

45. Movement of the humerus to the front, is called

extension

flexion

abbduction

rotation

46. Walking, sitting, squatting are done with the help of

Glenohumeral joint

humeral joint

hip joint

wrist joint

47. The largest joint in the body is

hip

shoulder

ankle

knee

48. Quadriceps and hamstring muscles are present in

shoulder

wrist

hip

49. Tibia, fibula, and talus join together to form

shoulder

hip

Ankle

knee

50. Biceps brachii muscle is the most powerful flexor of

elbow

hip

Ankle

knee

51. Science of human walking is called as

gait analysis

gate analysis

bait analysis

tait analysis

52. Initial double support period is called as

swing

preswing

loading response

early swing

53. Terminal double-limb support  is called as

swing

preswing

loading response

early swing

54. Number of steps per minute is called as

Cadence

preswing

loading response

early swing

55. Distance from 1 foot strike to next time the same foot strikes the ground is called as

Cadence

preswing

Stride length

early swing

56. Measure of forward progression to the centre of mass of individual is called as

Cadence

preswing

Velocity

early swing

57. Identify the motion analysis technique

a. interrupted light photography

b. video

c. both a and b

d. none of the above

58. This instrument is used to determine stride characteristics without attaching any devices to the subject

instrumented walkway

footswitches

EMG

EEG

59. Which instrument is retroreflective markers

EEG

video camera-based systems

EMG

ECG

60. In the  gait cycle of a normal man, Swing phase constitutes

40%

20%

60%

100%