Question: 163 The dimensions of volume are
1. M0L2 T 0
2. M0 L3 T-1
3. M 0 L 3 T 0
4. M1 L 3 T1
Question: 172 The dimensional formula ML2 T-2 represents
1. the moment of a force
2. acceleration
3. force
4. momentum
Question: 173 Which of the following pairs of physical quantities have the same dimensions?
1. momentum and impulse
2. energy and surface energy
3. momentum and angular momentum
4. force and surface tension
5.
Question: 174 Dimensional analysis can be used in deducing the exact relationship between any number of physical quantities
1. True
2. False
3. Uncertain
4. none of these
5.
Question: 175 The M.K.S unit of energy is
1. Dyne/sec
2. Joule
3. erg
4. none of these
5.
Question: 176 In S.I. system Pascal is a unit of
1. surface tension
2. surface energy
3. Viscosity
4. velocity
5.
Question: 177 In the Bernoullie's theory the term 1/2 pv2 and pgx process the same unit as of
1. pressure
2. force
3. impulse
4. strain
5.
Question: 178 Watt-sec is a unit of
1. momentum
2. force
3. energy
4. power
5.
Question: 180 The unit of current density is
1. ampere metre2
2. ampere/metre
3. weber/metre2
4. ampere/metre2
5.
Question: 181 One pascal in SI is equal to
1. one newton metre
2. one newton metre-1
3. one newton metre-2
4. one dyne cm2
5.
Question: 182 One big advantage of the atomic standards of length and time is that
1. they are of human size
2. they can be measured with simple equipment
3. they are natural units
4. they can be duplicated anywhere
Question: 181 One pascal in SI is equal to
1. one newton metre
2. one newton metre-1
3. one newton metre-2
4. one dyne cm2
5.
Question: 182 One big advantage of the atomic standards of length and time is that
1. they are of human size
2. they can be measured with simple equipment
3. they are natural units
4. they can be duplicated anywhere
5.
Question: 183 The correct unit of power is
1. Kilowatt
2. Dynes
3. joule
4. Kilowatt-hour
5.
Question: 184 One Fermi is equal to (in SI)
1. 10-12 farad
2. 10-6 Henry
3. 10 -12 metre
4. 10 -12 Angstrom
5.
Question: 186 Out of the followings which is not a characteristic of the fundamental units?
1. they are well defined
2. they are easily reproductive
3. they are not related to each other
4. they do not change with change of conditions as temperature, state of motion, pressure etc.
5.
Question: 187 In S.I System, the correct unit of pressure is
1. Atmosphere
2. Pascal
3. Dynes per square cm
4. mm of mercury
5.
Question: 188 Choose the physical quantity which is not defined in terms of force per unit area
1. pressure
2. stress
3. strain
4. young's modulus
5.
Question: 189 A pressure of 106 dynes/cm2 in C.G.S. is equivalent to ... in M.K.S.
1. 105 N/m2
2. 104 N/m2
3. 106 N/m2
4. 103 N/m2
5.
Question: 190 Given the density of wood is 0.5 gm per c.c. in the C.G.S. system of units. Its value in MKS units is given by
1. 500
2. 50
3. 0.5
4. 5,000
5.
Question: 191 Which of the following is dimensionally correct?
1. Pressure = Energy per unit area
2. Pressure = Energy per unit volume
3. Pressure = Force per unit volume
4. Pressure = momentum per unit volume per unit time
5.
Question: 192 Which of the following pairs of physical quantities have identical dimensions?
1. Moment of a force and Angular Momentum
2. work and Energy
3. Torque and Energy
4. None of these
5.
Question: 193 The quantity e 2/hc , where 'e' is the electronic charge 'h' is the Planck's constant and 'c' is the velocity of light
1. has the dimension of mass
2. has the dimension of length
3. has the dimension of time
4. is dimensionless
Question: 195 If the velocity of light c, the constant of gravitation G and Planck's constant have chosen as fundamental units , the dimensions of length in the new system is
1. C -13/2 G 1/2 h
2. C -1/2 G -1/2 h
3. C -5/2 h
4. none of these
5.
Question: 196 State the physical quantity represented by L 2 T2 0-1 where 0 is represents the unit temperature
1. Thermal capacity of the body
2. Thermal conductivity
3. Specific thermal capacity
4. specific latent heat of vaporization
5.
Question: 197 Correct unit of capacitance in SI system is
1. nf
2. pf
3. f
4. uf
5.
Question: 198 The correct unit of inductance in SI system is
1. lx
2. lm
3. H
4. wb
5.
Question: 199 The correct unit of magnetic flux in SI system is
1. Lumen
2. Tesla(T)
3. Henry(H)
4. Weber(wb)
5.
Question: 200 The correct unit of illuinance in SI system is
1. Lumen
2. Candela
3. lux
4. weber
5.
Question: 201 In SI system the unit of specific heat capacity is
1. gm cm2 Sec-1
2. J.kg-1 .K -1
3. W.m-1 K-1
4. W.sr -1
5.
Question: 202 In SI system the correct unit of mass is
1. Ton
2. kg
3. g
4. mg
5.
Question: 203 In SI system the correct unit of luminous intensity is
1. Kelvin
2. Lumen
3. Lux
4. Candela
5.
Question: 204 In SI system the correct unit of amount of substance is
1. Litre
2. Mole
3. Millilitre
4. Gram
Question: 223 The correct unit of electric current in SI system is
1. Ampere
2. Ampere/sec
3. Coulomb/sec
4. Coulomb/meter
5.
Question: 224 The correct unit of Kinematic viscosity in SI system is
1. rad.s-2
2. m2.s-1
3. g.s-2
4. N.sm-2
5.
Question: 225 The correct unit of dynamic Viscosity in SI system is
1. rad.s-2
2. gs-2
3. N.sm-2
4. m2 .s-1
5. Answer key
163 . C 172 . A 173 . A 174 . A 175 . B 176 . C 177 . A 178 . B 180 . D 181 . C 182 . D 181 . C 182 . D 183 . A 184 . A 186 . C 187 . B 188 . C 189 . A 190 . A 191 . B 192 . B195 . C 196 . D 197 . C 198 . C 199 . D 200 . C 201 . B 202 . B 203 . D 204 . B
223 . A 224 . B 225 . C
No comments:
Post a Comment