During loading response, the ground reaction force passes behind the knee. Which muscle group controls the resulting moment?

Quadriceps acting eccentrically

Hamstrings acting concentrically

Hip abductors acting isometrically

Ankle plantarflexors acting concentrically

A 12-year-old with spastic diplegic cerebral palsy walks in crouch with excessive knee flexion and ankle dorsiflexion. Knee flexion contractures are minimal and tibial torsion is normal. Which orthosis is most appropriate?

Hinged AFO with free dorsiflexion

After 30 minutes of walking in a new AFO, a red area over the navicular is still present 30 minutes after removal. What should be done?

Adjust the orthosis to relieve pressure

Continue wearing; skin will toughen

A technician is trimming carbon fibre laminate with a high-speed cutter. Which control is most important?

Local dust extraction with a respirator

Working faster to cut exposure time

Why is carbon fibre composite used for dynamic AFOs and prosthetic feet?

High strength and stiffness for low weight

It is the cheapest orthotic material available

It is easily heat-moulded by hand

It is soft and cushions the skin

A post-polio patient has severe quadriceps weakness and the knee buckles in stance. Which orthosis is most appropriate?

KAFO with a locked or stance-control knee

Foot orthosis with medial posting

Flexible posterior leaf spring type AFO

A patient with diabetes has a neuropathic plantar forefoot ulcer without infection or ischaemia. Which offloading device is recommended first?

Non-removable knee-high offloading device

Standard trainers with a soft cushioned insole

Why is a transparent check (test) socket made before the definitive socket?

To view skin blanching and contact

To provide a lighter final socket

To replace the need for casting

A polypropylene AFO keeps cracking at a sharp corner in the trim line near the ankle. What is the most likely fabrication cause?

Stress concentration at a sharp corner

Excess heel height on the patient's shoe

A 12-year-old girl with idiopathic scoliosis, Risser 0, has a progressive thoracolumbar Cobb angle of 30 degrees. What is the most appropriate management?

Full-time thoracolumbosacral brace

Observation until skeletal maturity

Soft lumbar support at night only

Which body motions operate the terminal device of a body-powered transradial prosthesis with a figure-of-eight harness?

Humeral flexion and biscapular abduction

Elbow extension and wrist flexion

Shoulder elevation and cervical flexion

For a two-site myoelectric transradial prosthesis, where are the electrodes usually placed?

Over the forearm flexors and extensors

Over the biceps and triceps muscles

Over the deltoid and upper trapezius

Over the pectoralis major muscle only

Free · 15 questions with answers · every GCC exam

Prosthetics & Orthotics Prometric exam questions with answers

15 original practice questions written to the Prosthetics & Orthotics exam blueprint, each with the answer and why the other options are wrong. Below them: the Prosthetics & Orthotics exam's format, pass mark and fee at DHA, DOH, SCFHS, QCHP and every other GCC regulator, from their own published rules.

15
Free questions: 60%
DHA pass mark: 150
Questions on the DHA exam: 12
Questions in the free mock

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Quick answer

The Prosthetics & Orthotics exam is 150 MCQs in 3 hours at DHA (pass mark 60%). Below are 15 original practice questions written to the official blueprint, each with the answer and why the other options are wrong, plus a free 12-question timed mock.

The Prosthetics & Orthotics exam in every GCC country

DHA publish an exact Prosthetics & Orthotics exam; the others apply one format to every title. Figures come from each regulator's own exam pages - anything not published says so.

Prosthetics & Orthotics licensing exam in every GCC country
Regulator	Exam	Format	Pass mark	Fee per attempt	Practise
DHA Dubai	Prosthetics & Orthotics Technologist (PRO5952)	150 MCQs in 3 hours	60%	USD 240 (about AED 880)	DHA questions →
DOH Abu Dhabi, Al Ain and Al Dhafra	DOH licensing exam Regulator-wide format	Written + oral/OSCE	Pass / fail only	Not published	DOH questions →
MOHAP Northern Emirates - Ajman, Umm Al Quwain, Ras Al Khaimah and Fujairah	MOHAP licensing exam Regulator-wide format	Computer-based	Not published	Not published	MOHAP questions →
SHA Emirate of Sharjah	SHA licensing exam Regulator-wide format	Set at assessment	Not published	Not published	SHA questions →
SCFHS Kingdom of Saudi Arabia	SCFHS licensing exam Regulator-wide format	200 MCQs, 240 min	500-560 of 800	Not published	SCFHS questions →
QCHP State of Qatar	QCHP licensing exam Regulator-wide format	150 MCQs, 3 hrs	50-65%	Not published	QCHP questions →
NHRA Kingdom of Bahrain	NHRA licensing exam Regulator-wide format	Prometric CBT	Not published	Not published	NHRA questions →
OMSB Sultanate of Oman	OMSB licensing exam Regulator-wide format	Computer-based OC exam	Not published	Not published	OMSB questions →
Kuwait MOH State of Kuwait	Kuwait MOH licensing exam Regulator-wide format	150 MCQs, 170 min	60-70%	Not published	Kuwait MOH questions →

exact exam published for Prosthetics & Orthotics

Pass marks, attempts and fees change - confirm yours on the regulator's exam page before you book.

15 Prosthetics & Orthotics exam questions with answers

Choose your answer first, then open the explanation. The set covers the main blueprint domains at a mix of easy, medium and hard.

Question 1Anatomy, Biomechanics and Gaitmedium
During loading response, the ground reaction force passes behind the knee. Which muscle group controls the resulting moment?
1. AQuadriceps acting eccentrically
2. BHamstrings acting concentrically
3. CHip abductors acting isometrically
4. DAnkle plantarflexors acting concentrically
Show answer and explanation
Answer: A. Quadriceps acting eccentrically
A ground reaction force behind the knee creates an external flexion moment, which the quadriceps resist eccentrically to control knee flexion. Weak quadriceps lead to knee buckling or compensatory hyperextension.
Question 2Clinical Conditionshard
A 12-year-old with spastic diplegic cerebral palsy walks in crouch with excessive knee flexion and ankle dorsiflexion. Knee flexion contractures are minimal and tibial torsion is normal. Which orthosis is most appropriate?
1. APosterior leaf spring AFO
2. BGround reaction (floor reaction) AFO
3. CHinged AFO with free dorsiflexion
4. DSupramalleolar orthosis
Show answer and explanation
Answer: B. Ground reaction (floor reaction) AFO
A ground reaction AFO blocks tibial advancement and moves the ground reaction force in front of the knee, creating an extension moment that reduces crouch. Free dorsiflexion would allow the crouch to continue.
Question 3Assessment, Outcomes, Safety and Ethicsmedium
After 30 minutes of walking in a new AFO, a red area over the navicular is still present 30 minutes after removal. What should be done?
1. AContinue wearing; skin will toughen
2. BAdd more wearing time each day
3. CAdjust the orthosis to relieve pressure
4. DApply moisturiser only
Show answer and explanation
Answer: C. Adjust the orthosis to relieve pressure
Redness that persists beyond about 20-30 minutes after removal indicates excessive pressure, and the orthosis should be adjusted before ulceration occurs. Continuing to wear it risks skin breakdown, especially with poor sensation.
Question 4Assessment, Outcomes, Safety and Ethicsmedium
A technician is trimming carbon fibre laminate with a high-speed cutter. Which control is most important?
1. AWorking faster to cut exposure time
2. BLocal dust extraction with a respirator
3. CCotton gloves only
4. DOpening the workshop door
Show answer and explanation
Answer: B. Local dust extraction with a respirator
Cutting composites releases fine fibres and resin dust, so local exhaust ventilation at the tool with suitable respiratory protection is the key control. Opening a door does not capture dust at source.
Question 5Materials, Casting and Fabricationeasy
Why is carbon fibre composite used for dynamic AFOs and prosthetic feet?
1. AHigh strength and stiffness for low weight
2. BIt is the cheapest orthotic material available
3. CIt is easily heat-moulded by hand
4. DIt is soft and cushions the skin
Show answer and explanation
Answer: A. High strength and stiffness for low weight
Carbon fibre composites combine high strength and stiffness with low weight and can store and return energy. They are relatively expensive and cannot be remoulded by simple heating.
Question 6Lower Limb Orthoticsmedium
A post-polio patient has severe quadriceps weakness and the knee buckles in stance. Which orthosis is most appropriate?
1. AKAFO with a locked or stance-control knee
2. BFoot orthosis with medial posting
3. CSupramalleolar orthosis
4. DFlexible posterior leaf spring type AFO
Show answer and explanation
Answer: A. KAFO with a locked or stance-control knee
A KAFO with a locked or stance-control knee joint prevents buckling when the quadriceps cannot stabilise the knee. A posterior leaf spring AFO only assists dorsiflexion and offers no knee control.
Question 7Spinal and Upper Limb Orthoticshard
In the BrAIST trial of bracing for adolescent idiopathic scoliosis, what daily wear time was linked to success rates of about 90%?
1. AAbout 2 hours each day
2. BAbout 6 hours at night only
3. COnly at weekends
4. DAbout 13 hours or more
Show answer and explanation
Answer: D. About 13 hours or more
BrAIST showed a dose-response: average wear of about 13 hours or more per day was linked to success rates of about 90-93%. Short daily wear gave results similar to observation.
Question 8Spinal and Upper Limb Orthoticseasy
A patient with carpal tunnel syndrome is prescribed a night splint. In what position should the wrist be held?
1. AFull flexion
2. BNeutral
3. CFull extension
4. DUlnar deviation
Show answer and explanation
Answer: B. Neutral
A neutral wrist position keeps carpal tunnel pressure lowest. Full flexion or extension raises the pressure and worsens symptoms.

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Question 9Lower Limb Orthoticsmedium
A patient with diabetes has a neuropathic plantar forefoot ulcer without infection or ischaemia. Which offloading device is recommended first?
1. AStandard trainers with a soft cushioned insole
2. BRemovable ankle-high shoe
3. CSimple felt padding alone
4. DNon-removable knee-high offloading device
Show answer and explanation
Answer: D. Non-removable knee-high offloading device
A non-removable knee-high device, such as a total contact cast, is the first-choice offloading for neuropathic plantar forefoot ulcers because it removes the option of non-adherence. Removable devices are used when non-removable ones are contraindicated.
Question 10Lower Limb Prostheticsmedium
A transfemoral amputee walks in the community at variable speeds and can step over most obstacles. Which functional level is this?
1. AK1
2. BK2
3. CK3
4. DK4
Show answer and explanation
Answer: C. K3
K3 describes an ambulator with variable cadence who can cross most environmental barriers, often suited to advanced knee and energy-storing feet. K4 requires high-impact or high-energy activity, such as athletes or active children.
Question 11Materials, Casting and Fabricationmedium
Why is a transparent check (test) socket made before the definitive socket?
1. ATo provide a lighter final socket
2. BTo avoid needing any alignment
3. CTo view skin blanching and contact
4. DTo replace the need for casting
Show answer and explanation
Answer: C. To view skin blanching and contact
A clear thermoplastic check socket lets the clinician see blanching and contact areas and adjust fit before lamination. It does not replace casting or alignment.
Question 12Materials, Casting and Fabricationmedium
A polypropylene AFO keeps cracking at a sharp corner in the trim line near the ankle. What is the most likely fabrication cause?
1. AStress concentration at a sharp corner
2. BToo much padding inside
3. CMaterial that is too thick
4. DExcess heel height on the patient's shoe
Show answer and explanation
Answer: A. Stress concentration at a sharp corner
Sharp corners and notches concentrate stress and start fatigue cracks; trim lines should be smooth and radiused. Thicker material would usually resist cracking rather than cause it.
Question 13Spinal and Upper Limb Orthoticsmedium
A 12-year-old girl with idiopathic scoliosis, Risser 0, has a progressive thoracolumbar Cobb angle of 30 degrees. What is the most appropriate management?
1. AFull-time thoracolumbosacral brace
2. BObservation until skeletal maturity
3. CSoft lumbar support at night only
4. DCervical collar
Show answer and explanation
Answer: A. Full-time thoracolumbosacral brace
Skeletally immature patients with curves of about 20-40 degrees benefit from bracing, which reduces progression to surgical levels. Observation alone risks progression during the growth spurt.
Question 14Upper Limb Prostheticsmedium
Which body motions operate the terminal device of a body-powered transradial prosthesis with a figure-of-eight harness?
1. AElbow extension and wrist flexion
2. BShoulder elevation and cervical flexion
3. CTrunk rotation and hip flexion
4. DHumeral flexion and biscapular abduction
Show answer and explanation
Answer: D. Humeral flexion and biscapular abduction
Glenohumeral flexion and biscapular abduction lengthen the distance between harness and terminal device, pulling the control cable. Shoulder elevation is used for other control functions, not usually for the transradial terminal device.
Question 15Upper Limb Prostheticsmedium
For a two-site myoelectric transradial prosthesis, where are the electrodes usually placed?
1. AOver the biceps and triceps muscles
2. BOver the deltoid and upper trapezius
3. COver the pectoralis major muscle only
4. DOver the forearm flexors and extensors
Show answer and explanation
Answer: D. Over the forearm flexors and extensors
Two-site control uses wrist extensor activity to open and wrist flexor activity to close the hand, since these muscles remain in the forearm. Biceps and triceps sites are used for transhumeral levels.

What the Prosthetics & Orthotics exam covers

The blueprint groups questions into these domains. Weight your revision the same way - the heavier domains carry more of your score.

Anatomy, Biomechanics and Gait

~16%

Phases of the gait cycle · Ankle, foot and knee rockers · Ground reaction force and joint moments

Clinical Conditions

~12%

Causes and levels of amputation · Diabetic foot and peripheral neuropathy · Stroke and hemiplegic gait

Lower Limb Prosthetics

~18%

Transtibial socket design · Transfemoral socket design · Suspension systems and liners

Upper Limb Prosthetics

~8%

Body-powered harness and control motions · Voluntary opening and closing terminal devices · Myoelectric control and electrode sites

Lower Limb Orthotics

~14%

AFO design, trim lines and stiffness · Ground reaction (floor reaction) AFO · KAFO and stance control orthoses

Spinal and Upper Limb Orthotics

~10%

Scoliosis bracing · Cervical orthoses and halo vests · Thoracolumbar orthoses for fractures

Materials, Casting and Fabrication

~12%

Thermoplastics · Composites · Plaster casting and positive model rectification

Assessment, Outcomes, Safety and Ethics

~10%

Skin checks and pressure areas · Outcome measures · Patient education and follow-up

How to answer these questions

Questions test applied practice: what you would do with this patient, this result or this image - not textbook definitions.

Safety items (radiation, infection control, patient identification, equipment checks) are high-yield and quick to revise.

Under time pressure, flag and move on: every question carries the same mark.

Aim to score comfortably above your regulator's pass mark - 10 to 15 points of margin - on timed, full-length practice before you book.

Prosthetics & Orthotics exam questions: FAQs

How many questions are in the Prosthetics & Orthotics Prometric exam?

It depends on the regulator: DHA 150 MCQs in 3 hours. The full table above lists every GCC regulator.

What is the pass mark for the Prosthetics & Orthotics exam?

DHA: 60%. Pass marks are set exam by exam, so use your own regulator's figure.

Are these real exam questions?

No. Regulators do not release their papers, and anything sold as a leaked paper is unofficial and risky to rely on. These are original questions written to the official exam blueprint, at the level and in the style of the real exam, each with a worked explanation.

Is the Prosthetics & Orthotics exam the same in every GCC country?

The clinical content is broadly similar because the exams test the same safe practice, but the format, length, pass mark, attempts and fees differ by regulator. Prepare on the content once, then check your regulator's exact rules before you book.

How should I use these questions?

Answer each one before opening the explanation, and note why each wrong option is wrong. Then take the free 12-question timed mock to see your score against the pass mark, and move to full-length papers when you score comfortably above it.

Last reviewed September 2026. Questions are original and written to the published exam blueprint; they are not taken from any real paper.

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