Question 1 (2 points) What feature of a line wrench gives it an advantage that other wrenches do not have? Question 1 options: Greater turning torque An angled end to reach difficult fastener heads A curved handle Five sides at each open end Question 2 (2 points) Which tool is best used to remove a brass hydraulic fitting closely surrounded by other hydraulic fittings? Question 2 options: A crowfoot wrench A deep 6-pt socket A line wrench A box-end wrench Question 3 (2 points) Sledge hammer handles are typically made from: Question 3 options: Plastic Polypropylene Wood Fiberglass Question 4 (2 points) Which type of fastener drive head is less likely to slip or cam-out? Question 4 options: Internal Torx Internal hex head A ball-type Allen socket An external hex head Question 5 (2 points) Where should the most frequently used tools be stored in a tool box? Question 5 options: At eye level in the top storage box In a drawer with ball bearing-type slides In a lower drawer chest below eye level In a portable tool tray Question 6 (2 points) Which of the following Robertson screwdriver tips is the largest? Question 6 options: Yellow Red Green Black Question 7 (2 points) When should the most pressure be applied to a hack saw blade when cutting? Question 7 options: On the back stroke when cutting steel and cast iron On the forward stroke when cutting steel and iron On the back stroke when two or more teeth contact the work On the back stroke when cutting thin-walled tubing Question 8 (2 points) Which type of socket would be used by a half-inch drive impact gun? Question 8 options: A 6-pt flat black-colored socket A 12-pt chrome socket A 6-pt chrome socket A socket with a locking pin release Question 9 (2 points) Which jaw face of an adjustable wrench should have the most pressure applied when tightening or loosening a fastener? Question 9 options: The fixed jaw The movable jaw The serrated jaw The smooth jaw Question 10 (2 points) Which of the following tools is best used to loosen a recessed and seized nut on a stud 1.5" long? Question 10 options: A deep 6-pt socket A shallow 12-pt socket A combination wrench An open-end wrench
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Question 2: A crowfoot wrench is the best tool to remove a brass hydraulic fitting closely surrounded by other hydraulic fittings. Question 3: Sledge hammer handles are typically made from fiberglass. Question 4: An internal Torx type of fastener drive head is Show more…
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QUESTION 3 According to Toth, flakes were used for cutting and making digging tools. True False QUESTION 4 According to Toth, which of the following significant milestones are attributed to stone use in the genus Homo around 2 million years ago? a. Enlargement in brain, reduction in tooth and jaw size, migration out of Africa b. Warfare, reduction in tooth size, scavenging. c. Vegetarian diets and reduction in tooth size. d. Start of bipedalism, cooperative hunting and migration out of Africa QUESTION 5 Name two specific advancements in stone tool technology occurring about 200,000 and 80,000 years ago. a. Use of boats for fishing b. Hafting and use of bone tools c. Use of stone and metal tools d. Early villages and farming. According to Toth, what explains the selection of a large brain in humans? a. large brains were important for hunting success only b. A large brain is a cheap metabolic organ. c. Brains require high energy intakes. d. Social animals and sociality require interactions and intelligence which a large brain facilitated QUESTION 6 The fossil remains of Nariokotome boy or Turkana boy dating to 1.6mya provide us with the following information: a. That Homo ergaster had post-cranial body proportions and features similar to those of modern sapiens b. That Homo ergaster was a cannibal or scavenger. c. That Homo ergaster evolved from the robust australopithecines. d. That Homo ergaster lived in a dense forest habitat based on proxy evidence at the find-site in Turkana, Kenya. QUESTION 7 Which of the following statements about archaic Homo sapiens in Europe is incorrect. a. Archaic Homo sapiens in Europe are characterized by large arching brow ridges, large nasal apertures, occipital buns and low cranial vaults. b. The Steinheim cranium has a flat face but also possesses arching brow ridges. c. Have no chins and but have thick cranial vaults. d. Most archaic Homo sapiens fossils have equal or smaller brain sizes than those found in Asian Homo erectus QUESTION 8 The following is true about Homo neanderthalensis: a. Neanderthals were killed in catastrophic numbers by modern sapiens. b. The largest concentration of Neanderthal sites is found in western Europe c. Neanderthal bodies exemplify Allen’s rule i.e. adaptation to tropical environments. d. Genetic evidence showing interbreeding of Neanderthals with modern sapiens is inconclusive
Adi S.
QUESTION 4 Contestants A & B from the biggest loser both perform a full push-up with Jillian (65 kg) on their back (add this amount to their masses stated below). Using the information below, calculate which contestant demonstrates the most power during the upward phase of the push-up and type this power value (your highest calculated number) in the answer space provided? Contestant A: Mass = 135 kg; Height of push-up = 0.32 m; Time of push-up = 1.44 s. Contestant B: Mass = 120 kg; Height of push-up = 0.32 m; Time of push-up = 1.9 s. Note 1: This question is not direction specific. Therefore, if using acceleration due to gravity, please use positive 9.81 m/s/s. Note 2: If rounding is required (more than 2 decimal places in your calculated answer), please express your answer as a number rounded to 2 decimal places. Note 3: The units are not required to be indicated in your answer in this instance. QUESTION 5 What is the kinetic energy of a golf ball weighing 0.17 kg and travelling at 52.8 m/s? Note 1: If rounding is required, please express your answer as a number rounded to 2 decimal places. Note 2: The units are not required to be included in your answer in this instance. QUESTION 6 The footy show have decided to run a strongman competition where each contestant must hold a six-pack of beer in each hand with their arms horizontal to the ground (i.e. arms horizontally out to the side). The contestant who maintains this position the longest will be declared the winner. For this competition, indicate which of the following statements is correct. a. The person with the greatest dumbell lateral raise 1RM will be the strongest and win. b. To be fairer, each competitor should have varying weighted six-packs that are matched to their arm lengths so that the torque resistance is equal for each competitor. c. Competitors may cheat by holding their six-packs higher than perpendicular to the ground which will increase the moment arm length and the subsequent torque resistance. This technique will provide a mechanical advantage and position the muscles in a way that is easier (mechanically) to hold the resistance. d. The person with the shortest arms, and therefore the shortest moment arm lengths will win. e. None of the statements are correct.
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