Primary FRCA Part 2: Physics & Equipment Exam 2026 2027 | Most Recent Exam Actual Complete Real Exam 227 Questions And Correct Answers (Verified Answers) Already Graded A+ |Guaranteed Success!! Newest Exam | Just Released!!

Primary FRCA Part 2: Physics & Equipment Exam 2026-
2027 | Most Recent Exam Actual Complete Real Exam
227 Questions And Correct Answers (Verified Answers)
Already Graded A+ |Guaranteed Success!! Newest Exam
| Just Released!!

Apply principles of physics and measurement to anaesthesia, including pressure,
flow, gas laws, vaporizers, electrical safety, and monitoring. (227 cards)


1
Q
How do capacitors behave differently for AC vs DC?

ANSWERS:


Capacitors block DC after an initial charge because they can’t sustain constant
current, but they allow AC to pass through by continuously charging and
discharging as the voltage changes.
2
Q
List some sources of inaccuracy in a LiDCO cardiac monitor.

ANSWERS:


 First trimester of pregnancy
 Weight <40kg
 Aortic regurgitation
 Intra-aortic balloon pump
 Therapeutic lithium administration
3

,Q
What proportion of total basal heat expenditure is used for humidifying and
warming inspired dry gas?

ANSWERS:


0.15
4
Q
What is a non-linearity error in measurement devices?

ANSWERS:


Occurs when the response of the device to changes in input is not a straight line.
This type of error can lead to inaccuracies in measurements at different points
and is best corrected using multi-point calibration to align the device’s output
with the actual values across its entire range.
5
Q
What is the difference between low-level and high-level decontamination?

ANSWERS:


LOW LEVEL: Kills most bacteria (not TB), some fungi & viruses.
AGENTS: alcohol, chlorhexidine
HIGH LEVEL: Kills all bacteria (incl. TB), most fungi & viruses — can sterilise with
time.
AGENTS: aldehydes, peracetic acid, chlorine dioxide
6
Q
What result does an overdamped arterial line produce?

ANSWERS:

,  Low systolic
 High diastolic
 Normal MAP
7
Q
What result does an underdamped arterial line produce?

ANSWERS:


 High systolic
 Low diastolic
 Normal MAP
8
Q
What is the sampling flow rate of a side-stream gas analyser?

ANSWERS:


Up to 200 mL/min
9
Q
Which measure in ultrasound imaging is most useful for determining the
likelihood of thermal injury from the apparatus?

ANSWERS:


Spatial peak temporal average intensity
(SPTA intensity)
Takes into account the highest intensity within the ultrasound beam over time
and is most directly associated with the amount of energy absorbed by tissues,

, thus representing the most significant factor in minimising the risk of thermal
injury.
10
Q
What is the difference between unipolar and bipolar pacing on a pacemaker?

ANSWERS:


 Unipolar pacing uses one electrode inside the heart and the pacemaker’s
metal casing as the return, creating a larger electrical field and a bigger
pacing spike on the ECG.
 Bipolar pacing uses two closely spaced electrodes on the lead itself,
confining the circuit locally and producing a smaller, sharper pacing spike.
11
Q
Define density in the context of gases and how it changes with temperature.

ANSWERS:


Mass per unit volume of a gas
Increasing temperature decreases density (because the same mass of gas
occupies a greater volume).
12
Q
State the equation for kinetic energy.

ANSWERS:


KE = 1/2(mv^2)
13
Q
List some metals that are ferromagnetic.