PGA Golf Technology and Equipment 1 — Questions and Answers
Question 1: What does 'lie angle' refer to in golf club fitting?
- The angle between the shaft and the ground when the club is in playing position (Correct answer)
- The angle of the clubface relative to the target line
- The angle of the club's leading edge at impact
- The angle between the shaft and the clubhead during the swing
Correct answer: The angle between the shaft and the ground when the club is in playing position
Lie angle is the angle between the shaft and the ground when the club is soled in its proper playing position, affecting shot direction.
Question 2: What is the primary purpose of a dynamic club fitting session?
- To determine a golfer's preferred brand of equipment
- To measure a golfer's swing characteristics with actual ball flight data (Correct answer)
- To assess a golfer's knowledge of equipment rules
- To evaluate a golfer's course management skills
Correct answer: To measure a golfer's swing characteristics with actual ball flight data
Dynamic fitting uses real swing data and ball flight to match equipment specifications to the golfer's individual swing characteristics.
Question 3: What is 'kick point' (also called flex point) in a golf shaft?
- The point where the shaft is most rigid during the downswing
- The location on the shaft where maximum bending occurs during the downswing (Correct answer)
- The position on the shaft that determines grip size
- The overall measurement of shaft stiffness from tip to butt
Correct answer: The location on the shaft where maximum bending occurs during the downswing
Kick point is the location on the shaft where maximum bending occurs during the downswing, influencing trajectory and shot feel.
Question 4: Which of the following best describes 'moment of inertia' (MOI) in golf club design?
- The speed at which the clubhead travels through impact
- The resistance of the clubhead to twisting on off-center hits (Correct answer)
- The total measurement of clubhead weight
- The vertical angle of the clubface at impact
Correct answer: The resistance of the clubhead to twisting on off-center hits
MOI measures a clubhead's resistance to twisting when the ball is struck off-center, with higher MOI producing more forgiveness on mishits.
Question 5: What launch monitor metric most directly measures how efficiently energy is transferred from the clubhead to the ball?
- Ball speed
- Spin rate
- Smash factor (Correct answer)
- Launch angle
Correct answer: Smash factor
Smash factor is the ratio of ball speed to clubhead speed, directly measuring energy transfer efficiency (ideal is approximately 1.50 for drivers).
Question 6: According to USGA rules, what is the maximum length allowed for a golf club (excluding putters)?
- 45 inches
- 46 inches
- 48 inches (Correct answer)
- 50 inches
Correct answer: 48 inches
USGA rules allow a maximum club length of 48 inches for all clubs except putters, though most commercially available drivers are 45–46 inches.
Question 7: What is the primary benefit of a low center of gravity (CG) in a driver or iron?
- Increased distance through reduced aerodynamic drag
- Higher ball flight with more spin for stopping power
- Higher launch angle with lower spin for maximum carry (Correct answer)
- Reduced vibration at impact for better feel
Correct answer: Higher launch angle with lower spin for maximum carry
A low CG promotes a higher launch angle while generating less spin, which is generally the optimal combination for maximum carry distance.
PGA Golf Technology and Equipment 1
What does 'lie angle' refer to in golf club fitting?