The number of milk teeth in man is

• 28
• 29
• 20
• 12

Muscle fatigue is due to accumulation of

• Carbon Dioxide
• Creatinine
• Lactic acid
• Ethyl alcohol

If we add salt to pure water, its boiling point will

• increase
• decrease
• remains same
• None of the above

The gastric gland in the stomach produce an enzyme :

• Insulin
• Ptyalin
• Pepsin
• Trypsin

What is the main property of mercury for using it in a clinical thermometer?

• Good conductor of heat
• High density
• Good conductor of electricity
• Easily available

The Kala-azar disease in man is spread by the bite of a:

• Culex Mosquito
• Phlebotomus sandfly
• Climex bed-bug
• Sarcoptes mites

LCD stands for

• Liquid Crystal Display
• Low Current Display
• Light Circuit Display
• None of the above

Sound waves in air are

• Transverse
• Longitudinal
• Electromagnetic
• Polarized

RADAR is used for

• locating submerged submarines
• receiving signals in a radio receiver
• locating geostationary satellites
• detecting and locating the position of objects such as aeroplane

Which of the rays is most dangerous ?

• Alpha ray
• Beta ray
• Gama ray
• X-ray