Ward Sanitation and Environment Secretary – Part B Previous Paper with Key

Following are the previous questions with official key for Ward Sanitation and Environment Secretary exam 2019 conducted by Government of Andhra Pradesh. The old questions are useful for the understanding of nature and depth of question paper. Same syllabus is prescribed for Ward / Grama Sachivalayam exams 20202. You can also see our mock tests / online exams for all Sachivalayam exams for both Part A and Part B syllabus. See previous questions of sanitation secretary exam.

e-waste is

1. environmently friendly waste
2. toxic chemicals
3. C and D waste
4. Obsolete electronic equipment
   ANSWER: 4

The least transboundary principle means

1. import waste
2. reduce waste
3. export waste
4. waste analysis
   ANSWER: 2

See more previous questions: Ward Sanitation Secretary Exam Paper 2019

Which composing method requires large areas?

1. Manual composting
2. Mechanical composting
3. open window composting
4. trenching
   ANSWER: 1

What are the three Rs that are used to save the environment?

1. reduce, reuse, recycle
2. reserve, reduce, recycle
3. reuse, reserve, reduce
4. reserve, reuse, reduce
   ANSWER: 1

Paper, cardboard, textiles, plastics and wood are included in

1. garbage
2. non-combustible rubbish
3. waste
4. combustible rubbish
   ANSWER: 4

Metals are produced as waste in industries like

1. skiing
2. mining
3. electroplasting
4. quarrying
   ANSWER: 3

Which of the following improves efficiency of solid waste management?

1. composting
2. collection
3. processing
4. disposal
   ANSWER: 3

Which part of Integrated Waste Management can be addressed at an individual level?

1. source reduction
2. recycling
3. disposal
4. burning
   ANSWER: 1

Reticulopodia is also called

1. lobopodia
2. folopodia
3. myxopodia
4. axopodia
   ANSWER: 3

Name the male frog that carries eggs in its spacious vocal sacs

1. rhinoderms
2. rhacophorus
3. hyla
4. pipa
   ANSWER: 1

The enzyme that fills the gap in leading and lagging strands during replication of DNA is

1. helicase
2. topoisomerase
3. polymerase
4. ligase
   ANSWER: 4

The following zooids are also called tasters

1. gastrozooids
2. gonzooids
3. phyllozooids
4. dactylozooids
   ANSWER: 4

mycorrhian represents a case of

1. parasitism
2. symbiosis
3. competition
4. anagonism
   ANSWER: 2

How many testicular nephridia are present in leech?

1. 17 pairs
2. 6 pairs
3. 22 pairs
4. 11 pairs
   ANSWER: 4

The egg of frog is

1. Alecithal
2. Micolecithal
3. Mesolecithal
4. Macrolecithal
   ANSWER: 3

New species formed from geographically isolated population is called

1. sympatric speciation
2. parapatric speciation
3. peripatric speciation
4. allopatric speciation
   ANSWER: 4

The myogenic heart of pila has

1. one auricle and one ventricle
2. one auricle and two ventricles
3. two auricles and one ventricle
4. two auricles and two ventricles
   ANSWER: 1

The pearl osyter pinctada belongs to

1. gastropoda
2. monoplacophora
3. scaphopoda
4. pelecypoda
   ANSWER: 4

Growth curve for human population is

1. j shaped
2. s shaped
3. bell shaped
4. inverted bell shaped
   ANSWER: 2

Thalassemia is also called

1. aplastic anemia
2. cooley’s anemia
3. sickle cell anemia
4. megaloblastic anemia
   ANSWER: 2

The lattice model of plasma membrane was proposed by

1. singer and nicolson
2. danielli and davson
3. wolpers
4. robertson
   ANSWER: 3

Trypsin sttacks interior peptide bonds on carboxyl end of the following amino acid

1. tyrosine
2. tryptophan
3. arginine
4. phenylalanine
   ANSWER: 3

Identify the malarial parasite which is highly prevalent in the temparate zone?

1. plasmodium vivax
2. plasmodium falciparum
3. plasmodium ovale
4. plasmodium malaria
   ANSWER: 1

Tetrad stage is found in

1. leptotene stage
2. zygotene stage
3. pnchytene stage
4. diplotene stage
   ANSWER: 3

Out of the five enzyme reactions of Urea Cycle, how many reactions take place in the mitchondrion?

1. one
2. two
3. three
4. four
   ANSWER: 2

Human embryonic stem cells were first isolated by

1. Thompson
2. Gordon
3. Ruddle
4. Palmiter
   ANSWER: 1

The resting membrane potential of a neuron is

1. – 70 mV
2. + 30 mV
3. + 110 mV
4. – 40 mV
   ANSWER: 1

With respect to the fungal sexual cycle, choose the correct sequence of events.

1. Karyogamy, Plasmogamy, and Meiosis
2. Meiosis, Plasmogamy and Karyogamy
3. Plasmogamy, Karyogamy and Meiosis
4. Meiosis, Karyogamy and Plasmogamy
   ANSWER: 3

In which plant does the anomalous secondary growth develop due to the formation of accessory cambium?

1. Bignonia
2. Aristolochia
3. Boerhavia
4. Dracaena
   ANSWER: 3

The term Meristem was coined by

1. Hanstein
2. Nageli
3. Newman
4. Schmidt
   ANSWER: 2

Difference between virus and viroid is

1. absense of protein coat in viroid but present in virus
2. presence of low molecular weight RNA in virus but absent in viroid
3. both 1 and 2 are same
4. Absense of protein coat in virus but present in viroid
   ANSWER: 1

Water potential of pure water at standard temparature is equal to

1. 10
2. 20
3. 0
4. 5
   ANSWER: 3

Deficiency symptoms of an element tend to appear first in young leaves. It indicates that the element is relatively immobile. Which one of the following elemental deficiency would show such symptoms?

1. sulphur
2. magnesium
3. nitrozen
4. potassium
   ANSWER: 1

The age of cycads is the

1. mesozoic era
2. cenozoic era
3. palaeozoic era
4. carboniferous era
   ANSWER: 1

Eutrophication of water bodies resulting in killing of fishes is mainly due to

1. non availability of food
2. non availability of light
3. non availability of oxygen
4. non availability of essential minerals
   ANSWER: 3

Bradyrhizobium type of Rhizobium refers to

1. fast growth showing rhizobium
2. slow growth showing rhizobium
3. only developed nodules
4. no participation in nodulation
   ANSWER: 2

In which technique is PCR employed?

1. RFLP
2. RAPD
3. Southern Blotting
4. Western Blotting
   ANSWER: 2

Which of the following is not true of a eukaryotic cell?

1. It has 80-S type of ribosomes present in mitochondria
2. It has 80-S type ribosome present in cytoplasm
3. Mitochondria contain circular DNA
4. membrane bound organelles are present
   ANSWER: 1

Sickle cell anemia is an example for

1. pleiotropy
2. polygenic inheritance
3. multiple alleles
4. multiple inheritance
   ANSWER: 1

Post translational modificatins take place in

1. nucleus
2. mitochondria
3. ribosome
4. endoplasmic reticulum
   ANSWER: 4

For the formation of one molecule of hexose sugar, how many turns of Calvin Cycle are needed?

1. 6
2. 1
3. 36
4. 16
   ANSWER: 1

Which of the following molecule can be utilised for establishing early evolutionary process?

1. mitochondrial DNA
2. nuclear DNA
3. chloroplast DNA
4. ribosomal DNA
   ANSWER: 4

Which range of wavelength (in nm) is called photosynthetically active radiation (PAR)?

1. 760 – 1000
2. 390 – 430
3. 100 – 390
4. 400 – 700
   ANSWER: 4

The nature of ribozyme is

1. protein
2. rRNA
3. DNA
4. hnRNA
   ANSWER: 2

The enzyme that is ot found in a c3 plant is

1. RuBP carboxylase
2. PEP Carboxylase
3. NADP reductase
4. ATP synthase
   ANSWER: 2

Carrageenan is present in

1. phaeophyceae
2. cyanobacteria
3. rhodohyceae
4. chlorophyceae
   ANSWER: 3

During germination of barley seeds enzymes for mobilisation of reserve material to developing embryo are secreted from

1. endosperm
2. embryo
3. aleurone layer
4. embryonic leaves
   ANSWER: 3

Which enzyme is an exopeptidase

1. trypsin
2. chymotrypsin
3. pepsin
4. carboxylpeptidase – A
   ANSWER: 4

The following microorganism regarded as natural genetic engineer.

1. bacillus thuringiensis
2. agrobacterium tumefaciens
3. bacillus amiloliquefaciens
4. streptomyces viridochromeogenes
   ANSWER: 2