20 multiple-choice (MCQ / objective) questions from this chapter, in the common exam-style shapes. Every question comes with an explanation along with the answer, so you remember why the option is correct, not just which one it is.
1 Direct Questions
Direct Questions
- 1 markLaundry is called a science because:
(A) it needs costly machines(B) it is taught in science laboratories only(C) it is based on application of scientific principles and techniques(D) it needs the mastering of certain skills to give pleasing results - 1 markIn manually operated washing machines, how much of the work is done manually by the operator?
(A) 50 per cent or more(B) About 10 per cent(C) About 25 per cent(D) None of the work - 1 markAccording to the book, the optimum spin speed is approximately:
(A) 300 rpm(B) 333 rpm(C) 1100 rpm(D) 600-620 rpm - 1 markIn an electric iron, the part that adjusts the temperature to suit the fabric is the:
(A) thermostat(B) sole plate cover(C) steam valve(D) lid - 1 markIn hospitals, which articles are woolen?
(A) Only the blankets(B) Bed sheets and draw sheets(C) Doctors’ gowns(D) Patients’ kurta and pyjamas
2 Assertion-Reason
Assertion-Reason
- 1 markAssertion (A): In tumbling, the clothes move through the water.
Reason (R): In tumbling, washing takes place in a horizontally placed perforated cylinder that carries the clothes to the top with each revolution and drops them in the wash water.
(A) Both A and R are true, and R is the correct explanation of A.(B) Both A and R are true, but R is not the correct explanation of A.(C) A is true, but R is false.(D) A is false, but R is true. - 1 markAssertion (A): Agitators are not affected by detergents, bleaches and softeners.
Reason (R): Agitation is used in front loading machines.
(A) Both A and R are true, and R is the correct explanation of A.(B) Both A and R are true, but R is not the correct explanation of A.(C) A is true, but R is false.(D) A is false, but R is true. - 1 markAssertion (A): In hotel laundries, final finishing of laundered goods is emphasised.
Reason (R): Hotels also have to take care of guests’ personal laundry when required.
(A) Both A and R are true, and R is the correct explanation of A.(B) Both A and R are true, but R is not the correct explanation of A.(C) A is true, but R is false.(D) A is false, but R is true.
3 Match the Following
Match the Following
- 1 markMatch List I with List II:
P. Agitation Q. Pulsation R. Tumbling S. Spinning
1. Horizontally placed perforated cylinder 2. Speed greater than 300 rpm 3. Blades that rotate or oscillate 4. Vertical pulsator
(A) P-3, Q-4, R-1, S-2(B) P-4, Q-3, R-1, S-2(C) P-3, Q-1, R-4, S-2(D) P-3, Q-4, R-2, S-1 - 1 markMatch List I (stain on cotton) with List II (book’s treatment):
P. Ball pen ink Q. Fresh tea or coffee R. Old curry S. Fresh blood
1. Pour boiling water through 2. Steep in methylated spirit 3. Soak in cold water, then wash in dilute ammonia 4. Same as fresh, then bleach with javelle water
(A) P-1, Q-2, R-4, S-3(B) P-2, Q-1, R-4, S-3(C) P-2, Q-1, R-3, S-4(D) P-4, Q-1, R-2, S-3
4 Statement-Based Questions
Statement-Based Questions
- 1 markStatement I: Driers are used only at the household level.
Statement II: An iron may have a system of producing steam while in use.
(A) Both I and II are correct(B) Only I is correct(C) Only II is correct(D) Neither I nor II is correct - 1 markStatement I: In hospitals, stubborn stains are given special attention.
Statement II: In hospitals, ironing and pressing are always done to perfection.
(A) Both I and II are correct(B) Only I is correct(C) Only II is correct(D) Neither I nor II is correct
5 Arrange in the Correct Order
Arrange in the Correct Order
- 1 markArrange these operations of an automatic washer in the correct order:
(i) Washing (ii) Filling up water (iii) Water extraction (iv) Rinsing
(A) (ii), (i), (iv), (iii)(B) (ii), (iv), (i), (iii)(C) (i), (ii), (iv), (iii)(D) (ii), (i), (iii), (iv)
6 Fill in the Blanks
Fill in the Blanks
- 1 markAn old lipstick stain on cotton is moistened and softened by working ________ into the stain, and then washed with soap and water.
(A) glycerine(B) kerosene(C) borax(D) ammonia - 1 markSpinning at speeds greater than ________ rpm generates a centrifugal force.
(A) 100(B) 300(C) 600(D) 1100
7 Odd One Out
Odd One Out
- 1 markWhich of these is NOT a way of water extraction in a washing machine?
(A) Spinning(B) Agitation(C) Bottom-drain(D) Combination bottom-drain and spin
8 Passage-Based Questions
Passage-Based Questions
Passage
A big hotel in the city has 450 rooms. It washes its bed sheets, table cloths, curtains and staff uniforms in its own laundry. The manager insists that every sheet is starched, pressed well and folded perfectly so that everything in the guest’s room looks beautiful. Sometimes guests also give their own clothes for washing.
- 1 markWhat is given the most importance in the hotel laundry described in the passage?
(A) Aesthetics and final finish of the articles(B) Disinfection of the articles(C) Destroying disposables by burning(D) Ignoring stubborn stains
Passage
A large hospital has 1,900 beds. The sheets of the operation theatre and the labour room are changed several times a day. Dirty linen from all departments is brought to the laundry plant, sorted and washed in large machines of 100 kg per load. After washing, the linen is put into a machine that works in centrifugal motion.
- 1 markThe passage says the linen is ‘sorted’. According to the book, bed linen is sorted into which three groups?
(A) White, green and coloured(B) Clean, mildly soiled and very soiled(C) Cotton, wool and silk(D) Big, medium and small
9 True / False
True / False
- 1 markStatement 1: Big hotels may have up to 400-500 rooms.
Statement 2: Larger hospitals may have to take care of 1,800-2,000 beds or even more.
(A) Both statements are true(B) Statement 1 is true, Statement 2 is false(C) Statement 1 is false, Statement 2 is true(D) Both statements are false - 1 markStatement 1: Domestic washing machines handle 100 kg of load in one cycle.
Statement 2: Commercial laundries have separate machines for dry-cleaning.
(A) Both statements are true(B) Statement 1 is true, Statement 2 is false(C) Statement 1 is false, Statement 2 is true(D) Both statements are false
Answer Key and Explanations
Direct Questions
- (C) The book: laundry is a science because it is based on application of scientific principles and techniques; it is an art because it needs mastered skills for aesthetically pleasing results.
- (A) The book: in manually operated machines, 50 per cent or more of the work is manually done by the operator.
- (D) Spin speed can vary from 333 to 1100 rpm; the optimum speed is approximately 600-620 rpm.
- (A) Most electric irons have an inbuilt thermostat, which can adjust the temperature to suit the fabric.
- (A) Most articles in hospitals are cotton; only the blankets are woolen.
Assertion-Reason
- (A) R explains A: the revolving cylinder lifts and drops the clothes, so they move through the water.
- (C) A is true (they are made of plastic, aluminium or bakelite). R is false: agitation is used in top loading machines.
- (B) Both are true, but the emphasis on finishing comes from aesthetics and final finish being most important, not from guests’ laundry.
Match the Following
- (A) Agitation: blades; pulsation: vertical pulsator; tumbling: horizontal perforated cylinder; spinning: above 300 rpm.
- (B) Ball pen: methylated spirit; fresh tea/coffee: boiling water; old curry: javelle water; fresh blood: cold water then dilute ammonia.
Statement-Based Questions
- (C) Statement I is wrong: driers are used at commercial and institutional level. Statement II is correct.
- (D) Both are wrong: stubborn stains may not be taken notice of, and ironing and pressing may not be done to perfection.
Arrange in the Correct Order
- (A) The book’s order: filling up water, water level control, temperature, washing, rinsing, water extraction.
Fill in the Blanks
- (A) Old lipstick on cotton and linen: moisten and soften by working glycerine into the stain.
- (B) Spinning at speeds greater than 300 rpm generates a centrifugal force which throws the water up and out.
Odd One Out
- (B) The three ways of water extraction are spinning, bottom-drain and the combination; agitation is a washing method.
Passage-Based Questions
- (A) In the hospitality sector, aesthetics and final finish of the articles are the most important.
- (B) Step 3: bed linen is sorted into clean, mildly soiled and very soiled.
True / False
- (A) Both statements are true as per the book.
- (C) Statement 1 is false: domestic machines handle 5-10 kg. Statement 2 is true.
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