Place (tick mark) against the most appropriate answer given under each statement
a. Force acting per unit surface area is called:
i. Pressure
ii. Work
iii. Energy
iv. Power
b. While biting the human jaw acts as a lever of the:
i. 1 st order
ii. 2 nd order
iii. 3 rd order
iv. None of these
c. Several forces act on the fractured leg of a patient in traction. The combined effect of these
forces into a single force is called as:
i. Magnetic force
ii. Gravitational force
iii. Resultant force
iv. Functional force
d. On squeezing the bulb of the dropper the pressure created inside the dropper is:
i. Less than atmospheric
ii. More than atmospheric
iii. Equal to the atmospheric
iv. None of these
e. The seat of the dentist’s chair is placed over the larger piston and the smaller piston is
operated by a foot pedal on the principle of:
i. Charles law
ii. Pascal’s law
iii. Boyle’s law
iv. Dalton’s law
f. Follicles of unwanted hair are destroyed by causing the cells of the follicle to disintegrate
chemically by:
i. Heating
ii. Cooling
iii. Electrolysis
iv. Mechanically
g. Rays absorbed by heavier materials like calcium and phosphorus and which can pass
through the tissues of human body and not through bones are:
i. Light rays
ii. Sound waves
iii. X-rays
iv. Infra-red rays
h. The physical quantity of the measurement 1.4 m correspond to:
i. Length
ii. Mass
iii. Time
iv. Pressure
i. Volume of gas varies inversely with the pressure if the temperature is constant refers to the
law stated as:
i. Boyle’s law
ii. Pascal’s law
iii. Charles’s law
iv. Dalton’s law\
j. Electronic devices that consist of minute microphone that picks up sound waves and
converts them into electric current which is amplified and passes to a miniature loud
speaker that fits into the ear are called:
i. Transistor radio
ii. Hearing aid
iii. Amplifier
iv. Head phone
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