MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 601. |
The type of glass used in making lenses and prisms is |
| A. | jena glass |
| B. | soft glass |
| C. | pyrex glass |
| D. | flint glass |
| Answer» E. | |
| 602. |
Soap is a mixture of sodium or potassium salts of |
| A. | dicarboxylic acids |
| B. | monocarboxylic acids |
| C. | glycerol |
| D. | tricarboxylic acids |
| Answer» C. glycerol | |
| 603. |
Which one of the following is the petroleum wax? |
| A. | Paraffin wax |
| B. | Jonoba wax |
| C. | Carnauba wax |
| D. | Bees wax |
| Answer» B. Jonoba wax | |
| 604. |
Which of the following is a non metal that remains liquid at room temperature? |
| A. | Phosphorous |
| B. | Bromine |
| C. | Chlorine |
| D. | Helium |
| Answer» C. Chlorine | |
| 605. |
Brass gets discoloured in air because of the presence of which of the following gases in air? |
| A. | Oxygen |
| B. | Hydrogen sulphide |
| C. | Carbon dioxide |
| D. | Nitrogen |
| Answer» C. Carbon dioxide | |
| 606. |
Which of the following is used in pencils? |
| A. | Graphite |
| B. | Silicon |
| C. | Charcoal |
| D. | Phosphorous |
| Answer» B. Silicon | |
| 607. |
Chlorophyll is a naturally occurring chelate compound in which central metal is |
| A. | copper |
| B. | magnesium |
| C. | iron |
| D. | calcium |
| Answer» C. iron | |
| 608. |
Which of the following metals forms an amalgam with other metals? |
| A. | Tin |
| B. | Mercury |
| C. | Lead |
| D. | Zinc |
| Answer» C. Lead | |
| 609. |
Organisations are institutions in which members compete for status and power. They compete for resource of the organisation, for example finance to expand their own departments, for career advancement and for power to control the activities of others. In pursuit of these aims, grouped are formed and sectional interests emerge. As a result, policy decisions may serve the ends of political and career systems rather than those of the concern. In this way, the goals of the organisation may be displaced in favour of sectional interests and individual ambition. These preoccupations sometimes prevent the emergence of organic systems. Many of the electronic firms in the study had recently created research and development departments employing highly qualified and well paid scientists and technicians. Their high pay and expert knowledge were sometimes seen as a threat to the established order of rank, power and privilege. Many senior managers had little knowledge of technicality and possibilities of new developments and electronics. Some felt that close cooperation with the experts in an organic system would reveal their ignorance and show their experience was now redundant. |
| A. | |
| B. | |
| C. | |
| D. | |
| E. | |
| Answer» [{"answer":"4"},{"answer":"2"},{"answer":"3"},{"answer":"1"},{"answer":"1"}]. | |
| 610. |
I felt the wall of the tunnel shiver. The master alarm squealed through my earphones. Almost simultaneously, Jack yelled down to me that there was a warning light on. Fleeting but spectacular sights snapped into ans out of view, the snow, the shower of debris, the moon, looming close and big, the dazzling sunshine for once unfiltered by layers of air. The last twelve hours before re-entry were particular bone-chilling. During this period, I had to go up in to command module. Even after the fiery re-entry splashing down in 81o water in south pacific, we could still see our frosty breath inside the command module. |
| A. | |
| B. | |
| C. | |
| Answer» [{"answer":"3"},{"answer":"3"},{"answer":"4"}]. | |
| 611. |
Match the following Names ? |
| A. | |
| A. | |
| Answer» [{"answer":"3"},{"answer":"4"},{"answer":"1"},{"answer":"2"}]. | |
| 612. |
Match the following objects ? |
| A. | |
| A. | |
| Answer» [{"answer":"3"},{"answer":"2"},{"answer":"1"},{"answer":"4"}]. | |
| 613. |
Which of the following is an element? |
| A. | Ruby |
| B. | Diamond |
| Answer» C. | |
| 614. |
Potassium Permanganate is used for purifying drinking water, because |
| A. | it is an oxidising agent |
| B. | it is a sterilising agent |
| Answer» B. it is a sterilising agent | |
| 615. |
Which of the following metals remain in liquid for under normal conditions? |
| A. | Radium |
| B. | Mercury |
| Answer» C. | |
| 616. |
Which of the following is the lightest metal? |
| A. | Lithium |
| B. | Mercury |
| C. | Lead |
| Answer» B. Mercury | |
| 617. |
Amalgams are |
| A. | hardly coloured alloys |
| B. | alloys which contain mercury as one of the contents |
| Answer» C. | |
| 618. |
The main constituents of pearls are |
| A. | calcium oxide and ammonium chloride |
| B. | calcium carbonate and magnesium carbonate |
| Answer» C. | |
| 619. |
Which of the following is not an isotope of hydrogen? |
| A. | Tritium |
| B. | Yttrium |
| C. | Deuterium |
| D. | Protium |
| Answer» C. Deuterium | |
| 620. |
Water is a good solvent of ionic salts because |
| A. | it has a hard specific heat |
| B. | it has no colour |
| C. | it has a hard dipole moment |
| D. | None of the Above |
| Answer» D. None of the Above | |
| 621. |
Bell metal is an alloy of |
| A. | zinc and copper |
| B. | tin and copper |
| Answer» C. | |
| 622. |
Which metal pollute the air of a big city? |
| A. | Copper |
| B. | Lead |
| Answer» C. | |
| 623. |
Which of the following does not contain a coinage metal? |
| A. | Zinc and Gold |
| B. | Copper and Silver |
| Answer» B. Copper and Silver | |
| 624. |
Balloons are filled with |
| A. | helium |
| B. | nitrogen |
| Answer» B. nitrogen | |
| 625. |
Production of chlorofluorocarbons (CFC) gas which is proposed to be banned in India, is used in which of the following domestic products? |
| A. | Television |
| B. | Tube light |
| C. | Refrigerator |
| D. | Cooking gas |
| Answer» D. Cooking gas | |
| 626. |
Air is a/an |
| A. | compound |
| B. | mixture |
| Answer» C. | |
| 627. |
LPG consists of mainly |
| A. | methane, butane and propane |
| B. | methane, ethane and hexane |
| C. | ethane, hexane and nonane |
| D. | methane, hexane and nonane |
| Answer» B. methane, ethane and hexane | |
| 628. |
Marsh gas is |
| A. | methane |
| B. | hydrogen |
| Answer» B. hydrogen | |
| 629. |
Permanent hardness of water can be removed by adding |
| A. | washing soda |
| B. | chlorine |
| Answer» B. chlorine | |
| 630. |
In fireworks, the green flame is produced because of |
| A. | sodium |
| B. | barium |
| C. | mercury |
| Answer» C. mercury | |
| 631. |
Diamond is an allotropic form of |
| A. | carbon |
| B. | germanium |
| Answer» B. germanium | |
| 632. |
The filament of an electric bulb is made of |
| A. | tungsten |
| B. | nichrome |
| Answer» B. nichrome | |
| 633. |
The two elements that are frequently used for making transistors are |
| A. | silicon and germanium |
| B. | boron and aluminium |
| Answer» B. boron and aluminium | |
| 634. |
Actinides are the elements with atomic numbers from |
| A. | 89 to 103 |
| B. | 101 to 115 |
| Answer» B. 101 to 115 | |
| 635. |
What is laughing gas? |
| A. | Carbon monoxide |
| B. | Nitrous Oxide |
| Answer» C. | |
| 636. |
Which of the following are the ingredients of gun metal? |
| A. | Iron, Zinc, Titanium |
| B. | Copper, Tin |
| Answer» C. | |
| 637. |
Sodium metal is kept under |
| A. | kerosene |
| B. | water |
| Answer» B. water | |
| 638. |
Which of the following is in liquid form at room temperature? |
| A. | Francium |
| B. | Lithium |
| Answer» B. Lithium | |
| 639. |
Most soluble in water is |
| A. | sugar |
| B. | camphor |
| Answer» B. camphor | |
| 640. |
The most important ore of aluminium is |
| A. | bauxite |
| B. | galena |
| C. | calamine |
| D. | calcite |
| Answer» B. galena | |
| 641. |
Soda water contains |
| A. | carbonic acid |
| B. | carbon dioxide |
| Answer» C. | |
| 642. |
Permanent hardness of water may be removed by the addition of |
| A. | sodium carbonate |
| B. | alum |
| C. | potassium permanganate |
| D. | lime |
| Answer» B. alum | |
| 643. |
Potassium nitrate is used in |
| A. | medicine |
| B. | fertiliser |
| C. | salt |
| D. | glass |
| Answer» C. salt | |
| 644. |
Carbon, diamond and graphite are together called |
| A. | isomers |
| B. | allotropes |
| Answer» C. | |
| 645. |
Monazite is an ore of |
| A. | thorium |
| B. | titanium |
| Answer» B. titanium | |
| 646. |
Non stick cooking utensils are coated with |
| A. | Teflon |
| B. | black paint |
| Answer» B. black paint | |
| 647. |
The element common to all acids is |
| A. | carbon |
| B. | hydrogen |
| Answer» C. | |
| 648. |
The chemical (ethyl mercaptan) added to the otherwise odourless LPG cooking gas for imparting a detectable smell to the gas is a compound of |
| A. | sulphur |
| B. | bromine |
| Answer» B. bromine | |
| 649. |
Heavy water is |
| A. | PH7 |
| B. | deuterium oxide |
| Answer» C. | |
| 650. |
The group of metals Fe, Co, Ni may best called as |
| A. | transition metals |
| B. | main group metals |
| Answer» B. main group metals | |