Flashcards in Mix FRCA Deck (119)

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1

##
The following statements apply to equations of lines and curves:

The line y = 3-2x meets the y axis at y= -3

### False

2

##
The following statements apply to equations of lines and curves:

In the parabola y = 4x^2+3 cuts the y axis at x=3

### False

3

##
The following statements apply to equations of lines and curves:

An example of a rectangular hyperbola is pressure x volume =constant

### False

4

##
The following statements apply to equations of lines and curves:

If y = 2x+3, then x=(y-3)/2

### True

5

##
The following statements apply to equations of lines and curves:

A minimum point on a curve y = f(x) is defined by dy/dx = 0

### True

6

## The value of e in y=e^x depends on the units used to measure x

### False

7

## The calculation of cardiac output from a thermodilution curve is an application of differentiation

### False

8

## A picofarad is 10^-9 Farad

### False

9

## For the exponential function C = Cmax.e^-kt, the time constant (tau) = 0.693/k

### False

10

## Velocity is a rate of change of distance in m/s<2

### False

11

## Force = mass x acceleration

### True

12

## Energy = force x velocity

### False

13

## units of work are joules

### True

14

## Electrical current I = charge Q x Time

### False

15

## Presure = force x area

### False

16

## Absolute pressure = gauge pressure = atmospheric pressure

### True

17

## Atmospheric pressure at sea level is 1.013 x 10^3 bar

### False

18

## The pascal is the unit of pressure

### True

19

## 10 m water pressure is equivalent to 760 mmHg

### True

20

## Frictional losses mean that kinetic energy recovered is always less than the original potential energy

### True

21

## Units of energy are N/m

### False

22

## The kinetic energy contained in 2 kg object moving at a velocity of 4 m/sec is 32 J

### False

23

## The work done in compressing a ventilator bellows of cross sectional area A, through a pressure differential P through a displacement d is Pd/A

### False

24

## The work done in compressing a gas between two pressures and two volumes is proportional to the slope of the P-V curve between those two points

### False

25

## Units of heat energy are joules

### True

26

## When a substance changes state it does so without changing temp

### Tue

27

## Condensation is the main form of heat loss in patients

### False

28

## Temperature K=C +273

### True

29

## The triple point of water occure at 1 bar pressure and 273.16 K

### False

30