Which among the following is not a device to measure mass?

(a)

Spring balance

(b)

Beam balance

(c)

Physical balance

(d)

Digital balance

_________is not the unit of length.

(a)

Muzham

(b)

Furlong

(c)

Mile

(d)

Hour

The centrifugal force is

(a)

Real force

(b)

The force of reaction of centripetal force

(c)

Virtual force

(d)

Directed towards the centre of the circular path.

The mirror used by a dental surgeon is _______________________

(a)

plane

(b)

convex

(c)

concave and convex

(d)

concave

The separation of denser particles from lighter particles done by rotation at high speed is called ________

(a)

Filtration

(b)

sedimentation

(c)

decantation

(d)

centrifugation

The direct change of state from solid to gas is called______

(a)

filtration

(b)

decantation

(c)

sublimation

(d)

evaporation

Chlorophyll in a leaf is required for __________.

(a)

photosynthesis

(b)

transpiration

(c)

tropic movement

(d)

nastic movement

___________________% of water is used to produce carbohydrates by the plants.

(a)

0.01%

(b)

0.001%

(c)

0.1%

(d)

0.6%.

Identify the most common larva of segmented worms?

(a)

Bipinnaria

(b)

Tadpole

(c)

Trochophore

(d)

Ascon

Larva of frog is_________.

(a)

Trochophore

(b)

Asicidian

(c)

Tadpole

(d)

Balanoglossus

Identify the monosaccharide

(a)

Amylose

(b)

Sucrose

(c)

Glucose

(d)

Lactose

Calorie is the unit of

(a)

heat

(b)

work

(c)

temperature

(d)

food

Potential near a charge is the measure of its________ to bring a positive charge at that point.

(a)

force

(b)

ability

(c)

tendency

(d)

work

Transformer works on.

(a)

AC only

(b)

DC only

(c)

both AC and DC

(d)

AC nor effectively than DC

Acids turn blue litmus paper to_______

(a)

Green

(b)

Red

(c)

Orange

(d)

Pink

Which muscles act involuntary?
(i) Striated muscles
(iii) Cardiac muscles
(ii) Smooth muscles
(iv) Skeletal muscles

(a)

(i) and (ii)

(b)

(ii) and (iii)

(c)

(iii) and (iv)

(d)

(i) and (iv)

In a pressure cooker, the food is cooked faster because

(a)

increased pressure lowers the boiling point

(b)

increased pressure raises the boiling point

(c)

decreased pressure raises the boiling point

(d)

increased pressure lowers the melting point

When the pitch of note by a harmonium is lowered, then the wave length of the note

(a)

first decreases and then increases

(b)

decreases

(c)

remains the same

(d)

increases

Which of the following does not contain natural dyes?

(a)

Potato

(b)

Beetroot

(c)

Carrot

(d)

Turmeric

The major constituent of vinegar is

(a)

citric acid

(b)

acetic acid

(c)

oxalic acid

(d)

hydrochloric acid