MCQ - Worksheet 1

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Chapter 3 Class 7 A Peek Beyond The Point - MCQ Worksheet 1 by teachoo Chapter: Chapter 3 Class 7 Maths – A Peek Beyond Point Name: _____________________________ School: _____________________________ Roll Number: _____________________________ An engineer is designing a protective case for a new smartphone that is exactly 7.5 mm thick. For a snug fit without being too loose, the internal thickness of the case should be just slightly larger. Which engineering specification is the most appropriate? a) 7.50 mm (no clearance, won't fit) b) 7.55 mm ( 0.05 mm clearance for a snug fit) c) 8.0 mm ( 0.5 mm clearance, likely too loose) d) 7.45 mm (too small) A billing software automatically converts an input of ₹12.7 to ₹12.70. What is the primary reason for this feature in financial systems? a) To make the number appear more valuable. b) To standardize all monetary values to two decimal places (for paise), which prevents errors whencalculating totals and taxes. c) To increase the amount charged to the customer. d) It is a cosmetic feature with no practical purpose. A high-precision baking recipe for macarons requires exactly 0.5 kg of almond flour. A baker using a digital scale has 0.45 kg . What is the most probable outcome if the baker proceeds? a) The macarons will be perfect, as the difference is negligible. b) The macarons' delicate texture will likely fail because the ingredient ratio is off by 0.05 kg . c) The baker has more than enough flour. d) The recipe is impossible to make with this amount. You need to buy replacement leads for a mechanical pencil. The pencil is labeled " 0.7 mm ". Which lead package should you buy? a) "Fine Point - 0.07 cm " b) "Micro Point - 0.5 mm " c) "Thick Point -7.0 mm " d) "Standard -0.9 mm " A landscape architect is designing a park using a map with a scale of 1" " cm=1" " km. A rectangular garden on the map measures 0.5 cm by 0.3 cm . What are the actual dimensions of the garden? a) 5 km by 3 km b) 50 m by 30 m c) 500 m by 300 m d) 0.5 m by 0.3 m A software update is scheduled to be completed in 1.25 days. How much time does the IT department have in hours? ( 1 day =24 hours) a) 25 hours b) 28 hours c) 30 hours d) 12.5 hours A company's stock price is listed as ₹20.50. This value represents: a) 20 and 5/10 rupees. b) 20 and 50/100 rupees. c) 20 and 1/2 rupees. d) All of the above. A materials scientist is testing the thickness of three new alloys. Alloy A is 0.1 mm , Alloy B is 0.012 cm , and Alloy C is 0.00011 m . For a project requiring the thickest material, which should be chosen? a) Alloy A b) Alloy B c) Alloy C d) All are equally thick. A courier service charges ₹100 for the first kg and ₹80 for every additional kg or part thereof. A package weighs 3.06 kg . How will the cost be calculated? a) Cost for exactly 3.06 kg . b) The weight is treated as being over 3 kg , so the cost will be for 4" " kg(1" " kg+3 additional kg). c) The weight is rounded down to 3 kg . d) The cost is for 3 kg plus a separate cost for 60 grams. A submarine at a depth of 3.5 meters dives a further 1.9 meters. Its new depth is 5.4 meters. The calculation 3.5+1.9=5.4 is correct because: a) It's a simple addition. b) In the tenths column, 5+9=14 tenths, which is 1.4 . The 0.4 stays in the tenths place and the 1 is carried over to the ones place. c) The submarine captain subtracts the numbers. d) This is a special rule for underwater navigation. Important links Answer of this worksheet - https://www.teachoo.com/25612/5372/MCQ---Worksheet-1/category/Teachoo-Questions---MCQs/ Full Chapter with Explanation, Activity, Worksheets and more – https://www.teachoo.com/subjects/cbse-maths/class-7/chapter-3-ganit-prakash/ Science Class 7 – https://www.teachoo.com/subjects/science/class-7/ Maths Class 7 - https://www.teachoo.com/subjects/cbse-maths/class-7/ For more worksheets, ad-free videos and Sample Papers – subscribe to Teachoo Black here - https://www.teachoo.com/black/   Answer Key to MCQ Worksheet 1 b) 7.55 mm ( 0.05 mm clearance for a snug fit) b) To standardize all monetary values to two decimal places (for paise), which prevents errors whencalculating totals and taxes. b) The macarons' delicate texture will likely fail because the ingredient ratio is off by 0.05 kg . a) "Fine Point - 0.07 cm " (since 0.07" " cm=0.7" " mm ) c) 500 m by 300" " m(0.5" " km=500" " m,0.3" " km=300" " m) c) 30 hours ( 1 day =24 hours, 0.25 day =6 hours. 24+6=30 ) d) All of the above b) Alloy B(A=0.1" " mm,B=0.12" " mm,C=0.11" " mm) b) The weight is treated as being over 3 kg , so the cost will be for 4" " kg(1" " kg+3 additional kg). b) In the tenths column, 5+9=14 tenths, which is 1.4 . The 0.4 stays in the tenths place and the 1 is carried over to the ones place.