Directions : Q.1 to Q.6 are multiple choice questions. Each question has 4 choices (1), (2), (3) and (4) out of which ONLY ONE is correct. 1. What is normal human body temperature for a healthy person? (1) 37o C (2) 101o F (3) 98.6o F (4) Both (1) and (3) 2. The temperature range of laboratory thermometer is ________. (1) –10o C to 100o C (2) 0o C to 100o C (3) –10o C to 110o C (4) 0o C to 110o C 3. Mercury is mostly used in thermometer because it has (1) shiny appearance (2) wide temperature range (3) high conductivity (4) all of these 4. Which of the following is correct precaution that should be taken while reading a laboratory thermometer? (1) Hold the thermometer by the bulb while reading it (2) Ensure that thermometer is slightly tilted (3) Read the thermometer keeping the level of mercury inclined at an angle with line of sight (4) The bulb of the thermometer should be completely surrounded by the substance to be measured. 5. Boiling point of mercury is (1) 78o C (2) 273o C (3) 100o C (4) 357o C 6. The liquid-in-glass thermometer consists of (1) bulb (2) capillary tube (3) glass tube (4) all of these Directions (Q.07 to Q.10) : Read the following statements and mark your answer as true or false. 7. The temperature range of clinical thermometer is 35 o C to 42 o C. (1) True (2) False 8. Mercury is a transparent liquid used in thermometers. (1) True (2) False 9. In a liquid-in-glass thermometer, mercury expands when temperature falls. (1) True (2) False 10. Boiling point of water is measured by laboratory thermometer. (1) True (2) False
Answers
Answer:Directions: Q.1 to Q.20 are multiple choice questions. Each question has 4 choices (1), (2), (3) and (4) out of which ONLY ONE is correct. 1. Reduce 144180 to its lowest form. (1) 7290 (2) 3645 (3) 1215 (4) 45 2. Simplify: – 50 + 20 – 30 + 40 (1) – 100 (2) –10 (3) – 20 (4) 20 3. Find the sum of 223 and 154. (1) 71720 (2) 11712 (3) 172024 (4) 10724 4. The cost of 12 baskets of apples is Rs. 4200,each basket contains 70 apples, find the cost price of an apple. (1) Rs.350 (2) Rs.7 (3) Rs.5 (4) Rs.42 5. Subtract 145 from167. (1) 33135 (2) 35133 (3) 3568 (4) 8635 6. A hiker is descending 252 m in every 12 minutes. What will be hikers change in elevation in half anhour? Write as an integer. (1)21 m (2) 630 m (3) 12 m (4) 31 m 7. Subtract the sum of 14 and 35 from 324. (1)1910 (2) 1109 (3) 910 (4) 9110 8. Find the value of: – 252´(– 73)+(– 252) ´(– 27) (1) 25200 (2) – 25200 (3)7300 (4) 2700 9. Find the value of: 539×999+539. (1) 999000 (2)539000 (3)935000 (4) 395000 10. In 5 games he won 3 marbles in each and in next 7 games he lost 2 marbles in each game.Find the number of marbleDeepak has at the end of the games? (1) 1 (2) 29 (3) 15 (4) 14 11. Evaluate (– 8+24)÷(– 2)+5 (1) 3 (2) – 5 (3) – 3 (4) –29
Explanation:
Answers:
Q1-(4)
Q2-(3)
Q3-(4)
Q4-(4)
Q5-(4)
Q6-(4)
Q7-True
Q8- False
Q9-False
Q10-False