(Multiple-choice, Choose Multiple Answer) Practice Test – Read the paragraph and answer the question by selecting all the correct responses. Answers are given at the end.
PTE Practice – Multiple-choice, Choose Multiple Answer
- Read the following passage and answer question 5.
Forces other than damaging winds are also at work inside tornadoes. Sometimes, as the writhing, twisting funnel passes over a house, the walls and ceiling burst apart as if a bomb had gone off inside. This explosion is caused by the low air pressure at the center of a tornado.
The pressure at the center of a tornado is usually 13 pounds per square inch. However, inside the house the air pressure is normal, about 15 pounds per square inch. The difference of 2 pounds per square inch between the inside and outside pressure may not seem like much. But suppose a tornado funnel passes over a small building that measures 20 by 10 by 10 feet. On each square inch of the building, there is 2 pounds of pressure from the inside that is not balanced by air pressure outside the building. On the ceiling, that adds up to an unbalanced pressure of 57, 600 pounds. The pressure on the four walls adds up to 172,800 pounds.
If windows are open in the building, some of the inside air will rush out through them. This will balance the pressure inside and outside the building. But if the windows are shut tightly, the enormous inside pressure may cause the building to burst.
Unfortunately, heavy rain and hail often occur in thunderstorms that later produce tornadoes. So people frequently shut all windows to protect their property. This may cause far worse damage later. For the same reason, tornado cellars must have an air vent. Otherwise, the cellar door might be blown out when a tornado passes over it.
Ques 5: Which of the following statements can be supported from the information given in the passage?
[A]. The difference per square inch between the air pressure inside a building and the air pressure inside a tornado is of 2 pounds.
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[B]. According to passage, Tornadoes can destroy building because the air pressure inside the tornado is less than the air pressure inside the building
[C]. The pressure on a building during a tornado can be relieved by closing the cellar.
[D]. The passage talks about as how tornadoes can be prevented.
PTE Reading (Multiple-choice, Choose Multiple Answer) Practice Test
- Read the following passage and answer question 6.
Exposure to high levels of noise can cause permanent hearing loss. Neither surgery nor a hearing aid can help correct this type of hearing loss. Short term exposure to loud noise can also cause a temporary change in hearing (your ears may feel stuffed up) or a ringing in your ears (tinnitus). These short-term problems may go away within a few minutes or hours after leaving the noise. However, repeated exposures to loud noise can lead to permanent tinnitus and/or hearing loss.
Loud noise can create physical and psychological stress, reduce productivity, interfere with communication and concentration, and contribute to workplace accidents and injuries by making it difficult to hear warning signals. The effects of noise induced hearing loss can be profound, limiting your ability to hear high frequency sounds, understand speech, and seriously impairing your ability to communicate.
When sound waves enter the outer ear, the vibrations impact the ear drum and are transmitted to the middle and inner ear. In the middle ear three small bones called the malleus (or hammer), the incus (or anvil), and the stapes (or stirrup) amplify and transmit the vibrations generated by the sound to the inner ear. The inner ear contains a snail-like structure called the cochlea which is filled with fluid and lined with cells with very fine hairs. These microscopic hairs move with the vibrations and convert the sound waves into nerve impulses–the result is the sounds we hear. Exposure to loud noise can destroy these hair cells and cause hearing loss!
Ques 6 : Which of the following statements about health can be supported from the text?
[A]. Even after long exposure, sound is unlikely to cause hearing loss.
[B]. Cochlea is responsible for the transfer of pressure waves into nerve impulses.
[C]. Exposure to noise at work can harm worker’s health.
[D]. Three small bones of outer ear – malleus, incus, and stapes are attached like a chain to the tympanic membrane and convert sound waves.
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