LGS Mixed Practice Test #166

Question 1

CFL stands for:‌​‍

Accepted Answer

Compact Fluorescent Lamp — CFL = Compact Fluorescent Lamp. ‌​‍More energy-efficient than incandescent bulbs but being replaced by LEDs.

Answer

Carbon Fluoride Lamp

Answer

Central Fluorescent Light

Answer

Compact Flash Light

Question 2

Pinaka range upgrade:‌​‍

Accepted Answer

90 km version — Enhanced Pinaka range up to 90 km.‌​‍

Answer

Cancelled

Answer

45 km

Answer

Only 40

Question 3

The unit of electric charge:

Accepted Answer

Coulomb — Coulomb (C) is the SI unit of electric charge.

Answer

Ampere

Answer

Joule

Answer

Tesla

Question 4

Guard cells control the opening and closing of:

Accepted Answer

Stomata — Kidney-shaped guard cells regulate stomatal aperture for gas exchange.

Answer

Xylem vessels

Answer

Root hairs

Answer

Lenticels

Question 5

Which class of diuretics primarily exerts its effect by inhibiting the Na+/Cl- cotransporter in the distal convoluted tubule?

Accepted Answer

C. Thiazide diuretics — Thiazide diuretics, such as hydrochlorothiazide, primarily act on the distal convoluted tubule to inhibit the reabsorption of sodium and chloride. Loop diuretics act on the loop of Henle, osmotic diuretics increase osmolarity of filtrate, and potassium-sparing diuretics act on the collecting duct.

Answer

A. Loop diuretics

Answer

B. Osmotic diuretics

Answer

D. Potassium-sparing diuretics

Question 6

The Odakkuzhal Award, a prominent literary prize in Malayalam, is uniquely presented by a specific trust. Which trust is responsible for conferring this award?

Accepted Answer

C. G. Sankara Kurup Memorial Trust — The Odakkuzhal Award was instituted in 1968 by G. Sankara Kurup, the first Jnanpith awardee, using the royalty amount received from his Jnanpith prize. It is presented annually by the G. Sankara Kurup Memorial Trust (Guruvayurappan Trust). The other trusts mentioned are associated with other literary figures or awards, but not with the Odakkuzhal Award.

Answer

A. Vayalar Ramavarma Memorial Trust

Answer

B. P. Kunhiraman Nair Memorial Trust

Answer

D. M.T. Vasudevan Nair Foundation

Question 7

Polio vaccines types:‌​‍

Accepted Answer

OPV (oral), IPV (inactivated) — OPV and IPV.‌​‍

Answer

Only one

Answer

Only injection

Answer

Only oral

Question 8

Goitre caused by:

Accepted Answer

Iodine deficiency — Iodine deficiency.

Answer

Iron deficiency

Answer

Calcium deficiency

Answer

Vitamin D

Question 9

National Science Day is on:‌​‍

Accepted Answer

28 Feb — 28 February (C.V. Raman discovered Raman Effect on this day, 1928).‌​‍

Answer

11 May

Answer

15 Jan

Answer

21 Jun

Question 10

Isomers have:‌​‍

Accepted Answer

Same molecular formula, different structure/arrangement — Types: chain, position, functional, geometric (cis/trans), optical (enantiomers).‌​‍

Answer

Same everything

Answer

Different empirical formula

Answer

Different mass

LGS Mixed Practice Test #166