Which is a method of graphic tracing of the electric current generated by heart muscle during a heartbeat, first developed by Dutch physiologist Willem Einthoven in 1903?

In 1903 which Dutch physiologist developed the first string galvanometer to measure and graphically record the changes of electrical potential caused by contractions of the heart muscle?

A

Willem Einthoven

B

Louis Stuyt

C

Hans Kuypers

D

Willem Karel Dicke

Four girls P, Q, R and S are studying languages in a University. P is learning French and Dutch. Q is learning Chinese and Japanese. R is learning Spanish and French. S is learning Dutch and Japanese. Given that: French is easier than Dutch; Chinese is harder than Japanese; Dutch is easier than Japanese, and Spanish is easier than French. Based on the above information, which girl is learning the most difficult pair of languages?

A

P

B

Q

C

R

D

S

S₁:The heart is pump of life.
P :They have even succeeded in heart transplants.
Q :Nowadays surgeons are able to stop a patients heart and carry out complicated operations.
R :A few years ago it was impossible to operate on a patient whose heart was not working properly.
S :If heart stops we die in about five minutes.
S₆:All this was made possible by the invention of heart-lung machine.

The Proper sequence should be:

A

SRQP

B

SPRQ

C

SQPR

D

SRPQ

The member which does not carry zero force in the structure shown in below figure, is
Applied Mechanics and Graphic Statics mcq question image

A

ED

B

DC

C

BC

D

BD

A body A of mass 6.6 kg which is lying on a horizontal platform 4.5 m from its edge is connected to the end of a light string whose other end is supporting a body of mass 3.2 kg as shown in below figure. If the friction between the platform and the body A is $$\frac{1}{3}$$, the acceleration is
Applied Mechanics and Graphic Statics mcq question image

A

0.5 m/sec²

B

0.75 m/sec²

C

1.00 m/sec²

D

1.25 m/sec²

In the structure shown in below figure, the member which carries zero force, is
Applied Mechanics and Graphic Statics mcq question image

A

AB

B

BC

C

BE

D

All the above

The centre of gravity of the trapezium as shown in below figure from the side is at a distance of
Applied Mechanics and Graphic Statics mcq question image

A

$$\frac{{\text{h}}}{3} \times \frac{{{\text{b}} + {\text{2a}}}}{{{\text{b}} + {\text{a}}}}$$

B

$$\frac{{\text{h}}}{3} \times \frac{{2{\text{b}} + {\text{a}}}}{{{\text{b}} + {\text{a}}}}$$

C

$$\frac{{\text{h}}}{2} \times \frac{{{\text{b}} + {\text{2a}}}}{{{\text{b}} + {\text{a}}}}$$

D

$$\frac{{\text{h}}}{2} \times \frac{{2{\text{b}} + {\text{a}}}}{{{\text{b}} + {\text{a}}}}$$

For the system of the loads shown in bellow figure, the time required for the 6.6 kg load to fall on the edge, is
Applied Mechanics and Graphic Statics mcq question image

A

1 sec

B

2 sec

C

3 sec

D

4 sec

The vertical reaction at the support ‘A’ of the structure shown in below figure, is
Applied Mechanics and Graphic Statics mcq question image

A

1 t

B

2 t

C

3 t

D

3.5 t

A weight of 100 kg is supported by a string whose ends are attached to pegs ‘A’ and ‘B’ at the same level shown in below figure. The tension in the string is
Applied Mechanics and Graphic Statics mcq question image

A

50 kg

B

750 kg

C

100 kg

D

120 kg

Which is a method of graphic tracing of the electric current generated by heart muscle during a heartbeat, first developed by Dutch physiologist Willem Einthoven in 1903?

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